CN112653968B - Head-mounted electronic equipment for sound transmission function - Google Patents

Abstract

Translated fromChinese

本申请提供了一种用于传声功能的头戴式的电子设备。该电子设备对指定范围内近场声源发出的声波具有抑制作用，并且对来自所述指定范围之外的远场声源的声波具有放大效应。所述电子设备包括：第一声波传感器，接收声波并基于所述声波输出第一信号；第二声波传感器，接收所述声波并基于所述声波输出第二信号；和信号处理电路，同所述第一声波传感器和所述第二声波传感器连接，并基于所述第一信号和所述第二信号生成输出信号。其中，所述电子设备对所述声波的近场灵敏度显著低于对所述声波的远场灵敏度。

The present application provides a head-mounted electronic device for sound transmission function. The electronic device has a suppressing effect on sound waves emitted by near-field sound sources within a specified range, and has an amplification effect on sound waves from far-field sound sources outside the specified range. The electronic device includes: a first acoustic wave sensor, receiving the sound wave and outputting a first signal based on the sound wave; a second acoustic wave sensor, receiving the sound wave and outputting a second signal based on the sound wave; and a signal processing circuit, the same as the The first acoustic wave sensor is connected to the second acoustic wave sensor, and an output signal is generated based on the first signal and the second signal. Wherein, the near-field sensitivity of the electronic device to the sound wave is significantly lower than the far-field sensitivity to the sound wave.

Description

Translated fromChinese

用于传声功能的头戴式的电子设备Head-mounted electronic equipment for sound transmission function

技术领域technical field

本发明涉及声音采集设备领域，尤其涉及一种具有传声功能的音响设备。The invention relates to the field of sound collection equipment, in particular to an audio equipment with sound transmission function.

背景技术Background technique

对于有些具有传声功能的音响设备，比如麦克风模组，来说，在不同的应用场景下，对于近场声源和远场声源的传声效果需求是不同的。比如在打电话时，人们通常希望将更靠近手机的人声进行放大，而弱化周围环境的声音，通话的对方也更能够听清手机使用者的声音。相反的，在某些应用场景下，人们希望音响设备对近场声源的灵敏度减弱，而对远场声源的灵敏度增强。For some audio equipment with sound transmission function, such as microphone modules, in different application scenarios, the sound transmission effect requirements for near-field sound sources and far-field sound sources are different. For example, when making a phone call, people usually want to amplify the human voice closer to the mobile phone, while weakening the sound of the surrounding environment, so that the other party on the call can better hear the voice of the mobile phone user. On the contrary, in some application scenarios, people hope that the sensitivity of audio equipment to near-field sound sources will be weakened, while the sensitivity to far-field sound sources will be enhanced.

例如在助听器领域，人们对助听器的功能要求不再局限于简单的让使用者听见声音，更要求助听器能够让使用者听得清、听得懂周围人的讲话。影响语音可识别度的关键性因素之一为语音信号中目标语音同干扰声音的比率，语音信号中包含的干扰声音比例越低，目标语音信号的可懂度就越高。For example, in the field of hearing aids, people's functional requirements for hearing aids are no longer limited to simply allowing users to hear sounds, but also require hearing aids to allow users to hear clearly and understand the speech of people around them. One of the key factors affecting speech recognizability is the ratio of the target speech to the interfering sound in the speech signal. The lower the ratio of the interfering sound contained in the speech signal, the higher the intelligibility of the target speech signal.

然而，普通助听器的放大效果不具有选择性，其在放大目标语音信号的同时（远场声源），也会放大使用者自身的语音信号（近场声源）。通常而言，由于使用者声源距离助听器较对话人更近，在佩戴助听器时，使用者的声音强度将比对话人的声音强度更大。因此，使用者自身的语音信号将成为噪声，降低目标说话人语音的可懂度，影响沟通与助听器的使用体验。However, the amplification effect of ordinary hearing aids is not selective. While amplifying the target speech signal (far-field sound source), it will also amplify the user's own speech signal (near-field sound source). Generally speaking, since the user's sound source is closer to the hearing aid than the interlocutor, when wearing the hearing aid, the user's voice will be louder than the interlocutor's voice. Therefore, the user's own voice signal will become noise, reducing the intelligibility of the target speaker's voice, and affecting communication and hearing aid experience.

因此，我们需要一种新的具有传声功能的音响设备，能够在对近场声源信号进行抑制的同时，放大远场声源信号。Therefore, we need a new audio equipment with sound transmission function, which can amplify far-field sound source signals while suppressing near-field sound source signals.

发明内容Contents of the invention

在下文中给出了关于本申请的简要概述，以便提供关于本申请的某些方面的基本理解。应当理解，该部分并不意图确定本申请的关键或重要部分，也不是意图限定本申请的范围。其目的仅仅是以简化的形式给出本申请中的某些概念。更多细节会在本申请其他部分详细解释。A brief overview of the application is given below in order to provide a basic understanding of certain aspects of the application. It should be understood that this section is not intended to identify key or critical parts of the application, nor is it intended to limit the scope of the application. Its purpose is only to present some concepts of the application in a simplified form. Further details are explained in detail elsewhere in this application.

根据本申请提供了一种用于传声功能的音响设备。所述音响设备包括：第一声波传感器，接收声波并基于所述声波输出第一信号；第二声波传感器，接收所述声波并基于所述声波输出第二信号；和信号处理电路，同所述第一声波传感器和所述第二声波传感器连接，并基于所述第一信号和所述第二信号生成输出信号。其中，所述音响设备对目标近场声源发出的所述声波（目标近场声波）的目标近场灵敏度显著低于对远场声源发出的所述声波（远场声波）的远场灵敏度，其中，所述目标近场声源距离所述第一声波传感器的第二目标距离小于所述远场声源距离所述第一声波传感器的第一目标距离。According to the present application, an audio device for sound transmission function is provided. The audio device includes: a first acoustic wave sensor receiving a sound wave and outputting a first signal based on the sound wave; a second acoustic wave sensor receiving the sound wave and outputting a second signal based on the sound wave; and a signal processing circuit, the same as the The first acoustic wave sensor is connected to the second acoustic wave sensor, and an output signal is generated based on the first signal and the second signal. Wherein, the target near-field sensitivity of the audio equipment to the sound wave (target near-field sound wave) emitted by the target near-field sound source is significantly lower than the far-field sensitivity to the sound wave (far-field sound wave) emitted by the far-field sound source , wherein the second target distance between the target near-field sound source and the first acoustic wave sensor is smaller than the first target distance between the far-field sound source and the first acoustic wave sensor.

在一些实施例中，所述近场灵敏度显著低于所述远场灵敏度是指所述近场目标灵敏度同所述远场灵敏度的比值小于预定的值。In some embodiments, the near-field sensitivity being significantly lower than the far-field sensitivity means that a ratio of the near-field target sensitivity to the far-field sensitivity is smaller than a predetermined value.

在一些实施例中，所述第一声波传感器包括第一麦克风；所述第二声波传感器包括第二麦克风；以及所述第一麦克风到所述第二麦克风的距离为预先设定的距离。In some embodiments, the first acoustic wave sensor includes a first microphone; the second acoustic wave sensor includes a second microphone; and the distance from the first microphone to the second microphone is a preset distance.

在一些实施例中，所述目标近场声源的位置使得所述目标近场声波在所述第一麦克风和所述第二麦克风之间的声压幅值梯度的绝对值大于第一声压阈值；以及所述目标远场声源的位置使得所述目标远场声波在所述第一麦克风和所述第二麦克风之间的声压幅值梯度的绝对值小于第二声压阈值。In some embodiments, the position of the target near-field sound source is such that the absolute value of the sound pressure amplitude gradient of the target near-field sound wave between the first microphone and the second microphone is greater than the first sound pressure threshold; and the position of the target far-field sound source is such that the absolute value of the sound pressure amplitude gradient of the target far-field sound wave between the first microphone and the second microphone is smaller than a second sound pressure threshold.

在一些实施例中，所述的音响设备还包括电子设备，其中：所述第一声波传感器和所述第二声波传感器装配在所述电子设备上，当所述电子设备运行时，所述目标近场声源的位置与所述电子设备的空间位姿关系固定，所述第一声波传感器与所述目标近场声源的位置相距第一距离，所述第二声波传感器与所述目标近场声源的位置相距第二距离。In some embodiments, the audio device further includes an electronic device, wherein: the first acoustic wave sensor and the second acoustic wave sensor are mounted on the electronic device, and when the electronic device operates, the The position of the target near-field sound source is fixed in relation to the spatial orientation of the electronic device, the first acoustic wave sensor is a first distance away from the position of the target near-field sound source, and the second acoustic wave sensor is connected to the The location of the target near-field sound source is a second distance away.

在一些实施例中，所述第一声波传感器的灵敏度为第一灵敏度，所述第二声波传感器的灵敏度为第二灵敏度，其中，所述第一灵敏度和第二灵敏度根据所述第一距离与所述第二距离的比值确定。In some embodiments, the sensitivity of the first acoustic wave sensor is a first sensitivity, and the sensitivity of the second acoustic wave sensor is a second sensitivity, wherein the first sensitivity and the second sensitivity are based on the first distance A ratio to the second distance is determined.

在一些实施例中，所述第一声波传感器的灵敏度为第一灵敏度，所述第二声波传感器的灵敏度为第二灵敏度，其中，所述第一灵敏度和所述第二灵敏度相同。In some embodiments, the sensitivity of the first acoustic wave sensor is a first sensitivity, and the sensitivity of the second acoustic wave sensor is a second sensitivity, wherein the first sensitivity and the second sensitivity are the same.

在一些实施例中，所述第二声波传感器还包括幅值调节电路，所述幅值调节电路被配置为根据所述第一距离和所述第二距离的比值对所述第二声波传感器输出的初始第二信号进行幅值调节以生成所述第二信号。In some embodiments, the second acoustic wave sensor further includes an amplitude adjustment circuit configured to output the second acoustic wave sensor according to the ratio of the first distance to the second distance performing amplitude adjustment on the initial second signal to generate the second signal.

在一些实施例中，所述电子设备包括适配按钮，所述适配按钮被配置为在被按下时启动所述幅值调节电路。In some embodiments, the electronic device includes an adaptation button configured to activate the amplitude adjustment circuit when pressed.

在一些实施例中，当所述音响设备运行时，所述幅值调节电路的幅值调节幅度根据所述第一距离和所述第二距离的动态变化实时改变。In some embodiments, when the audio device is running, the amplitude adjustment range of the amplitude adjustment circuit is changed in real time according to the dynamic changes of the first distance and the second distance.

在一些实施例中，所述第一声波传感器包括相位调节电路，所述相位调节电路被配置为根据所述第一距离和所述第二距离的差值对所述第一声波传感器输出的初始第一信号进行相位调节以生成所述第一信号。In some embodiments, the first acoustic wave sensor includes a phase adjustment circuit configured to output the first acoustic wave sensor according to the difference between the first distance and the second distance. performing phase adjustment on the initial first signal to generate the first signal.

在一些实施例中，所述信号处理电路包括差分电路。In some embodiments, the signal processing circuit includes a differential circuit.

在一些实施例中，所述的音响设备进一步包括信号放大电路，将所述差分电路的输出信号放大后生成所述音响设备的输出信号。In some embodiments, the audio device further includes a signal amplification circuit, which amplifies the output signal of the differential circuit to generate the output signal of the audio device.

在一些实施例中，所述第二声波传感器同所述第一声波传感器之间的预设距离可调。In some embodiments, the preset distance between the second acoustic wave sensor and the first acoustic wave sensor is adjustable.

在一些实施例中，所述电子设备包括头戴式电子设备。In some embodiments, the electronic device includes a head-mounted electronic device.

在一些实施例中，所述头戴式电子设备包括至少一个助听器，所述至少一个助听器包括至少一个耳塞，至少所述第一声波传感器的一部分和至少所述第二声波传感器的一部分位于所述至少一个耳塞中。In some embodiments, the head-mounted electronic device includes at least one hearing aid, the at least one hearing aid includes at least one earplug, at least a portion of the first acoustic wave sensor and at least a portion of the second acoustic wave sensor are located in the into at least one of the earbuds.

在一些实施例中，所述至少一个耳塞中的每一个都包括至少一个信号转换器，所述至少一个信号转换器中的每一个都被配置为从所述信号处理电路接收所述输出信号并输出通过空气传播的声音信号。In some embodiments, each of the at least one earbud includes at least one signal converter, each of the at least one signal converter is configured to receive the output signal from the signal processing circuit and Outputs an acoustic signal that travels through the air.

在一些实施例中，所述至少一个耳塞中的每一个都包括至少一个信号转换器，所述至少一个信号转换器中的每一个都被配置为从所述信号处理电路接收所述输出信号并输出通过骨传导的声音信号。In some embodiments, each of the at least one earbud includes at least one signal converter, each of the at least one signal converter is configured to receive the output signal from the signal processing circuit and Outputs sound signals via bone conduction.

在一些实施例中，所述电子设备还包括扬声器，所述目标近场声源的位置为所述扬声器的装配位置。In some embodiments, the electronic device further includes a speaker, and the location of the target near-field sound source is an assembly location of the speaker.

在一些实施例中，所述第一信号包括n个第一子信号，所述第二信号包括n个第二子信号，其中，第i个第一子信号和第i个第二子信号对应相同的频带，其中，n为大于1的正整数，i为1至n中的任意整数；所述信号处理电路对每对序号相同的第一子信号和第二子信号进行处理后再合成为所述输出信号。In some embodiments, the first signal includes n first sub-signals, and the second signal includes n second sub-signals, wherein the i-th first sub-signal corresponds to the i-th second sub-signal The same frequency band, wherein, n is a positive integer greater than 1, and i is any integer from 1 to n; the signal processing circuit processes each pair of first sub-signals and second sub-signals with the same serial number and synthesizes them into the output signal.

附图说明Description of drawings

以下附图详细描述了本申请中披露的示例性实施例。其中相同的附图标记在附图的若干视图中表示类似的结构。本领域的一般技术人员将理解这些实施例是非限制性的、示例性的实施例，附图仅用于说明和描述的目的，并不旨在限制本公开的范围，其他方式的实施例也可能同样的完成本申请中的发明意图。应当理解，附图未按比例绘制。其中：The following figures describe in detail exemplary embodiments disclosed in this application. Wherein the same reference numerals denote similar structures in the several views of the drawings. Those of ordinary skill in the art will understand that these embodiments are non-limiting, exemplary embodiments, and that the accompanying drawings are for illustration and description purposes only, and are not intended to limit the scope of the present disclosure, and other embodiments are also possible. Complete the invention intention among the application likewise. It should be understood that the drawings are not drawn to scale. in:

根据本申请的一些实施例，图1示出一种有传声功能的音响设备的应用场景。According to some embodiments of the present application, Fig. 1 shows an application scenario of an audio device with a sound transmission function.

根据本申请的一些实施例，图2示出了有传声功能的音响设备的示意图。According to some embodiments of the present application, Fig. 2 shows a schematic diagram of an audio device with a sound transmission function.

根据本申请的一些实施例，图3是有传声功能的音响设备的近场声源信号抑制原理示意图。According to some embodiments of the present application, FIG. 3 is a schematic diagram of a near-field sound source signal suppression principle of an audio device with a sound transmission function.

根据本申请的一些实施例，图4示出了一种包括幅值调节电路的音响设备的示意图。According to some embodiments of the present application, Fig. 4 shows a schematic diagram of an audio device including an amplitude adjustment circuit.

根据本申请的一些实施例，图5示出了一种包括信号放大电路的音响设备的示意图。According to some embodiments of the present application, Fig. 5 shows a schematic diagram of an audio device including a signal amplifying circuit.

根据本申请的一些实施例，图6示出了一种包括相位调节电路的音响设备的示意图。According to some embodiments of the present application, Fig. 6 shows a schematic diagram of an audio device including a phase adjustment circuit.

根据本申请的一些实施例，图7示出了一种包括子带分解模块的音响设备的示意图。According to some embodiments of the present application, Fig. 7 shows a schematic diagram of an audio device including a sub-band decomposition module.

根据本申请的一些实施例，图8A和图8B示出了一种音响设备对目标近场声源和目标远场声源的方向响应的示意图。According to some embodiments of the present application, FIG. 8A and FIG. 8B show a schematic diagram of the directional response of an audio device to a target near-field sound source and a target far-field sound source.

根据本申请的一些实施例，图9A、图9B和图9C示出了音响设备的不同实施例下的0°方向频率响示意图。According to some embodiments of the present application, FIG. 9A , FIG. 9B and FIG. 9C show schematic diagrams of frequency responses in the 0° direction under different embodiments of audio equipment.

具体实施方式Detailed ways

本申请披露了一种具有传声功能的音响设备，所述音响设备对指定范围内的近场声源发出的声波有抑制效果，对指定近场声源之外的远场声源发出的声波有放大效果。The present application discloses an audio device with a sound transmission function. The audio device has a suppressing effect on sound waves emitted by near-field sound sources within a specified range, and has an effect on sound waves emitted by far-field sound sources other than the specified near-field sound source. There is a zoom effect.

以下描述提供了本申请的特定应用场景和要求，目的是使本领域技术人员能够制造和使用本申请中的内容。考虑到以下描述，本公开的这些特征和其他特征、以及结构的相关元件的操作和功能、以及部件的组合和制造的经济性可以得到明显提高。参考附图，所有这些形成本公开的一部分。然而，应该清楚地理解，附图仅用于说明和描述的目的，并不旨在限制本公开的范围。对于本领域技术人员来说，对所公开的实施例的各种局部修改是显而易见的，并且在不脱离本公开的精神和范围的情况下，可以将这里定义的一般原理应用于其他实施例和应用。因此，本公开不限于所示的实施例，而是与权利要求一致的最宽范围。The following description provides specific application scenarios and requirements of the application, with the purpose of enabling those skilled in the art to manufacture and use the contents of the application. The operation and function of these and other features of the present disclosure, as well as related elements of the structure, and the economics of assembly and manufacture of the components, may be significantly improved upon consideration of the following description. Reference is made to the accompanying drawings, all of which form a part of this disclosure. It should be clearly understood, however, that the drawings are for purposes of illustration and description only, and are not intended to limit the scope of the present disclosure. Various local modifications to the disclosed embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments and embodiments without departing from the spirit and scope of the disclosure. application. Thus, the present disclosure is not limited to the embodiments shown, but is to be accorded the widest scope consistent with the claims.

图1示出了本申请中的音响设备100的一些实施例所示的使用场景图。音响设备100可以包括声波传感器110、信号处理电路120和信号转换器130中的一个或多个。比如，所述声波传感器110可以是一个或者多个麦克风组；所述信号转换器130可以是特定功能的扬声器；信号处理电路120可以包括一个或者多个电器元件、电路、和/或硬件模块。所述一个或者多个电器元件、电路和/或硬件模块可以将所述声波传感器110产生的信号进行处理，然后将处理过的信号传给信号转换器130转换成声音。Fig. 1 shows a usage scenario diagram of some embodiments of anaudio device 100 in this application. Theaudio device 100 may include one or more of anacoustic wave sensor 110 , asignal processing circuit 120 and asignal converter 130 . For example, theacoustic wave sensor 110 may be one or more microphone groups; thesignal converter 130 may be a speaker with specific functions; thesignal processing circuit 120 may include one or more electrical components, circuits, and/or hardware modules. The one or more electrical components, circuits and/or hardware modules can process the signal generated by theacoustic wave sensor 110, and then send the processed signal to thesignal converter 130 for conversion into sound.

所述音响设备100可以仅仅包括所述声波传感器110。比如所述音响设备可以仅仅是一个或者多个麦克风组。所述音响设备100也可以同时包括声波传感器110、信号处理电路120和信号转换器130。比如所述音响设备100可以是搭载了所述麦克风组的电子设备。设备110可以包括任何具有声音采集功能的设备。比如所述电子设备可以包括，但是不限于，助听器100-1、智能电视100-2和智能音响100-3以及其他的智能音响设备。这些智能音响设备100可以通过采集周围环境的声音，并识别环境声音中的特定声音进行特定操作。比如，智能电视100-2和智能音响100-3可以通过采集并识别人声，并识别人声中包含的指令，从而控制其内部程序的运行。比如，智能音响100-3可以采集人声并识别人声中的点歌指令，然后播放对应歌曲。Theacoustic device 100 may only include theacoustic wave sensor 110 . For example, the audio equipment may be only one or more microphone groups. Theaudio device 100 may also include anacoustic wave sensor 110 , asignal processing circuit 120 and asignal converter 130 at the same time. For example, theaudio device 100 may be an electronic device equipped with the microphone set.Device 110 may include any device with a sound collection function. For example, the electronic device may include, but is not limited to, a hearing aid 100-1, a smart TV 100-2, a smart audio 100-3, and other smart audio devices. Thesesmart audio devices 100 can perform specific operations by collecting sounds from the surrounding environment and identifying specific sounds in the ambient sounds. For example, the smart TV 100-2 and the smart speaker 100-3 can control the operation of their internal programs by collecting and recognizing human voices and identifying instructions contained in the human voices. For example, the smart audio system 100-3 can collect human voices and recognize the song-ordering commands in the human voices, and then play the corresponding songs.

再比如，比如，所述智能音响设备100可以对来自特定位置的声音有特别的灵敏度，即，对该特定位置发出的声音格外敏感或者不敏感。在一些实施例中，装载在设备100上的声波传感器110可以对与其距离不同的声源信号做出不同灵敏度的响应。在图1中，近场声源140相对于远场声源150来说，距离设备110更近。从近场声源140发出的声音信号和从远场声源150发出的声音信号都可以被音响设备100采集和/或并转化为电信号。音响设备100对声音信号的灵敏度可以是指输出电信号的功率与接收到的声音信号功率的比值。灵敏度越大则表示单位功率的声源信号经音响设备100转化后的电信号的功率值越大。在本申请的实施例中，如果近场声源140和远场声源150同时发出声音并被音响设备100采集和/或探测到，音响设备100对远场声源150的灵敏度要显著大于对近场声源140的灵敏度。这也意味着，如果近场声源140和远场声源150所发出的声音传导到音响设备100时功率相同的话，音响设备100输出的电信号中，与远场声源150关联的部分信号功率要显著大于与近场声源140关联的部分。通过适当的设定对近场声源140和远场声源150分别的灵敏度，音响设备100可以达到抑制近场声源信号的同时放大远场声源信号的目的。For another example, for example, thesmart audio device 100 may have special sensitivity to sounds from a specific location, that is, be particularly sensitive or insensitive to sounds from the specific location. In some embodiments, theacoustic wave sensor 110 mounted on thedevice 100 may respond with different sensitivities to the sound source signals at different distances therefrom. In FIG. 1 , the near-field sound source 140 is closer to thedevice 110 than the far-field sound source 150 . Both the sound signal emitted from the near-field sound source 140 and the sound signal emitted from the far-field sound source 150 can be collected by theaudio device 100 and/or converted into electrical signals. The sensitivity of theaudio device 100 to the sound signal may refer to the ratio of the power of the output electrical signal to the power of the received sound signal. The greater the sensitivity, the greater the power value of the electric signal converted by the sound source signal per unit power through theaudio device 100 . In the embodiment of the present application, if the near-field sound source 140 and the far-field sound source 150 emit sound at the same time and are collected and/or detected by theaudio device 100, the sensitivity of thesound device 100 to the far-field sound source 150 is significantly greater than that to the far-field sound source 150. Sensitivity of the near-field sound source 140 . This also means that if the sound from the near-field sound source 140 and the far-field sound source 150 are transmitted to theaudio device 100 with the same power, in the electrical signal output by theaudio device 100 , the part of the signal associated with the far-field sound source 150 The power is significantly greater than that associated with the near-field sound source 140 . By properly setting the respective sensitivities to the near-field sound source 140 and the far-field sound source 150 , theaudio device 100 can suppress the near-field sound source signal while amplifying the far-field sound source signal.

当音响设备100装配在助听器100-1上时，近场声源140可以是佩戴助听器100-1的人的声带，而近场声源140的位置便是所述声带的位置；远场声源150可以是周围的环境声源，比如佩戴者周围的人的声带。此时助听器佩戴者自己的声音会被抑制，而周围环境声源，包括其他人的声音都会被增强，助听器佩戴者更容易分辨出周围环境声音和他人声音。When theaudio equipment 100 is assembled on the hearing aid 100-1, the near-field sound source 140 can be the vocal cords of the person wearing the hearing aid 100-1, and the position of the near-field sound source 140 is the position of the vocal cords; the far-field sound source 150 may be a source of ambient ambient sound, such as the vocal chords of people around the wearer. At this time, the hearing aid wearer's own voice will be suppressed, while the surrounding environmental sound sources, including the voices of other people, will be enhanced, and it is easier for the hearing aid wearer to distinguish the surrounding environmental sounds from other people's voices.

图2是本申请中的音响设备的一个实施例的示意图。音响设备可以包括基座200。基座200上可以承载排布音响设备100的各种元器件。基座200可以装配在音响设备100上，并通过一个或多个接口（图中未示出）与设备100的其他器件进行连接。所述一个或多个接口可以用于电源供应、数据交互，信号输入/输出，或类似功能。比如，音响设备100可以包括外接电源模块进行供电，也可以自身装配供电电源。再比如，音响设备100采集声音信号后输出的电信号可以通过一个或多个接口传输给设备100上的所述其他器件进行后续处理。Fig. 2 is a schematic diagram of an embodiment of the audio equipment in the present application. The audio device may include abase 200 . Various components of theaudio equipment 100 can be carried and arranged on thebase 200 . The base 200 can be assembled on theaudio device 100 and connected with other components of thedevice 100 through one or more interfaces (not shown in the figure). The one or more interfaces may be used for power supply, data exchange, signal input/output, or similar functions. For example, theaudio equipment 100 may include an external power supply module for power supply, or may be equipped with a power supply itself. For another example, the electrical signal output by theaudio device 100 after collecting the sound signal may be transmitted to the other devices on thedevice 100 through one or more interfaces for subsequent processing.

基座200上可以固定装配有第一声波传感器模块210和第二声波传感器模块220。第一声波传感器模块210内可以包括第一声波传感器（一个或者多个声波传感器组成的阵元）211。在一些实施例中，第一声波传感器模块210还可以包括与第一声波传感器模块210电连接的其他电路元器件，比如功率放大电路等等。第一声波传感器211可以被配置为接收声波并生成第一初始信号。所述其他电路元器件接收并将所述第一初始信号处理成第一信号。第一声波传感器模块210可以根据第一初始信号输出所述第一信号。所述第一初始信号和所述第一信号均为电信号。当第一声波传感器模块210除了第一声波传感器211以外不包括其他电路元器件时，所述第一信号即为所述第一初始信号。当第一声波传感器模块210还包括其他电路元器件时，所述第一信号可以是所述第一初始信号经过其他电路元器件处理后输出的信号。A first acousticwave sensor module 210 and a second acousticwave sensor module 220 may be fixedly mounted on thebase 200 . The first acousticwave sensor module 210 may include a first acoustic wave sensor (an array element composed of one or more acoustic wave sensors) 211 . In some embodiments, the first acousticwave sensor module 210 may further include other circuit components electrically connected to the first acousticwave sensor module 210, such as a power amplifier circuit and the like. The firstacoustic wave sensor 211 may be configured to receive an acoustic wave and generate a first initial signal. The other circuit components receive and process the first initial signal into a first signal. The first acousticwave sensor module 210 may output the first signal according to the first initial signal. Both the first initial signal and the first signal are electrical signals. When the first acousticwave sensor module 210 does not include other circuit components except the firstacoustic wave sensor 211 , the first signal is the first initial signal. When the first acousticwave sensor module 210 further includes other circuit components, the first signal may be a signal output after the first initial signal is processed by other circuit components.

第二声波传感器模块220可以具有与第一声波传感器模块210相同或相似的结构。例如，第二声波传感器模块220可以包括第二声波传感器（一个或多个声波传感器组成的阵元）221来接收声波并输出第二初始信号。与第一声波传感器模块210类似，第二声波传感器模块220还可以包括另外的电路组件以接收第二初始信号并进一步将第二初始信号处理成第二信号。所述另外的电路组件可以包括，但不限于，功率放大电路等。The second acousticwave sensor module 220 may have the same or similar structure as the first acousticwave sensor module 210 . For example, the second acousticwave sensor module 220 may include a second acoustic wave sensor (an array element composed of one or more acoustic wave sensors) 221 to receive an acoustic wave and output a second initial signal. Similar to the first acousticwave sensor module 210, the second acousticwave sensor module 220 may further include additional circuit components to receive the second initial signal and further process the second initial signal into a second signal. The additional circuit components may include, but are not limited to, power amplification circuits and the like.

在一些实施例中，第一声波传感器211可以包括至少一个麦克风，称为第一麦克风；第二声波传感器221可以包括至少一个麦克风，称为第二麦克风。第一麦克风和第二麦克风可以被配置为接收、感知和/或采集声波并转换为电信号。In some embodiments, the firstacoustic wave sensor 211 may include at least one microphone, referred to as a first microphone; the secondacoustic wave sensor 221 may include at least one microphone, referred to as a second microphone. The first microphone and the second microphone may be configured to receive, sense and/or collect sound waves and convert them into electrical signals.

第一声波传感器211与第二声波传感器221可以被固定在基座200上，之间相距一定距离。在一些实施例中，两个阵元之间的距离是固定的，可以为第一预设值，也就是预设距离。在另一种情况下，第一声波传感器211与第二声波传感器221之间的距离是可调的。The firstacoustic wave sensor 211 and the secondacoustic wave sensor 221 may be fixed on the base 200 with a certain distance therebetween. In some embodiments, the distance between two array elements is fixed, which may be a first preset value, that is, a preset distance. In another case, the distance between the firstacoustic wave sensor 211 and the secondacoustic wave sensor 221 is adjustable.

音响设备100还可以包括信号处理电路250。信号处理电路250也可以固定在基座200上。在本申请实施例中，信号处理电路250可以用于接收第一声波传感器模块210输出的第一信号和第二声波传感器模块220输出的第二信号，并利用第一信号和第二信号生成音响设备100的输出信号。信号处理电路250还可以输出所述输出信号。第一声波传感器模块210输出的第一信号可以通过电路230传输到信号处理电路250，第二声波传感器模块220输出的第二信号可以通过电路240传输到信号处理电路250。信号处理电路250可以通过电路260将输出信号向外部输出，例如通过接口输出到设备100的其他电子部件。Theaudio device 100 may further include asignal processing circuit 250 . Thesignal processing circuit 250 can also be fixed on thebase 200 . In the embodiment of the present application, thesignal processing circuit 250 can be used to receive the first signal output by the first acousticwave sensor module 210 and the second signal output by the second acousticwave sensor module 220, and use the first signal and the second signal to generate The output signal of theaudio device 100 . Thesignal processing circuit 250 may also output the output signal. The first signal output by the first acousticwave sensor module 210 can be transmitted to thesignal processing circuit 250 through thecircuit 230 , and the second signal output by the second acousticwave sensor module 220 can be transmitted to thesignal processing circuit 250 through thecircuit 240 . Thesignal processing circuit 250 can output the output signal to the outside through thecircuit 260 , for example, to other electronic components of thedevice 100 through an interface.

当音响设备100所处周围环境有多个声源发出声音时，第一声波传感器211和第二声波传感器221都可以接收到这些声音。例如，多个声源可以包括目标近场声源发出的目标近场声波和目标远场声源发出的目标远场声波。比如，目标近场声源可以是助听器佩戴者的声带，即近场声源；目标近场声波可以是助听器佩戴者自己发出的声音；目标远场声源可以是除了助听器佩戴者以外的一个或者多个第三方讲话者，即远场声源；目标远场声波可以是第三方讲话者发出的声音。对应地，在接收到一个或者多个声源发出的声音后，第一声波传感器模块210和第二声波传感器模块220可以分别输出第一信号和第二信号。为了方便描述本申请中披露的音响设备100，在下面的描述中都基于一个假设，即在目标近场声源发出的目标近场声波同目标远场声源发出的目标远场声波在频谱上完全一致，并且传导到第一声波传感器211处的声音强度也相同。When multiple sound sources emit sounds in the environment where theaudio device 100 is located, both the firstsound wave sensor 211 and the secondsound wave sensor 221 can receive these sounds. For example, the plurality of sound sources may include target near-field sound waves emitted by the target near-field sound source and target far-field sound waves emitted by the target far-field sound source. For example, the target near-field sound source can be the vocal cords of the hearing aid wearer, that is, the near-field sound source; the target near-field sound wave can be the sound emitted by the hearing aid wearer himself; the target far-field sound source can be one or A plurality of third-party talkers, ie, far-field sound sources; the target far-field sound waves may be sounds emitted by third-party talkers. Correspondingly, after receiving sounds from one or more sound sources, the first acousticwave sensor module 210 and the second acousticwave sensor module 220 may respectively output a first signal and a second signal. For the convenience of describing theaudio equipment 100 disclosed in the present application, the following description is based on an assumption that the target near-field sound wave emitted by the target near-field sound source and the target far-field sound wave emitted by the target far-field sound source are on the frequency spectrum are exactly the same, and the intensity of the sound transmitted to the firstacoustic wave sensor 211 is also the same.

第一信号和第二信号可以包含一个或多个声源的信息。经过信号处理电路250处理后，音响设备100的输出信号中，对应于目标近场声波的信号强度要显著低于对应于目标远场声波的信号强度。比如，当音响设备100为助听器100-1的时候，佩戴者的声带可以是目标近场声源，周围的其他人的声带可以是目标远场声源。助听器100-1对于佩戴者的声音放大要显著低于对佩戴者周边声源所发声音，比如第三方讲话者的声音，的放大。相较于目标远场声源，目标近场声源距离音响设备100更近。因此，目标近场声源也可以称为近场声源，目标远场声源也可以称为远场声源。在一些实施例中，第一声波传感器211周围的预定范围内的声源都可以是目标近场声源，预定范围之外的声源都可以是目标远场声源。以助听器为例，所述预定范围可以是使用者声带到助听器之间的距离范围，所述预定范围也可以是使用者两耳之间的范围。比如，所述预定范围可以是助听器朝向耳朵一侧的以10厘米、11厘米、12厘米、13厘米、14厘米、15厘米、16厘米、17厘米、18厘米、19厘米、20厘米、21厘米、22厘米、23厘米、24厘米和25厘米中的任意一个为半径的半球的范围。所述预定范围也可以是使用者两耳之间的距离。比如也可以是使用者两耳之间的范围。也就是说，在助听器为例的场景下，所述近场距离大致为使用者头部或者声带相对于助听器所在的位置。The first signal and the second signal may contain information of one or more sound sources. After being processed by thesignal processing circuit 250 , among the output signals of theaudio device 100 , the signal strength corresponding to the target near-field sound wave is significantly lower than the signal strength corresponding to the target far-field sound wave. For example, when theaudio device 100 is the hearing aid 100-1, the wearer's vocal cords may be the target near-field sound source, and the vocal cords of other people around may be the target far-field sound source. The hearing aid 100-1 amplifies the wearer's voice significantly less than the amplification of sounds from sound sources surrounding the wearer, such as the voice of a third-party speaker. Compared with the target far-field sound source, the target near-field sound source is closer to theaudio device 100 . Therefore, the target near-field sound source may also be called a near-field sound source, and the target far-field sound source may also be called a far-field sound source. In some embodiments, all sound sources within a predetermined range around the firstacoustic wave sensor 211 may be target near-field sound sources, and all sound sources outside the predetermined range may be target far-field sound sources. Taking a hearing aid as an example, the predetermined range may be the distance between the user's vocal cords and the hearing aid, or the predetermined range may be the range between the user's two ears. For example, the predetermined range may be 10 cm, 11 cm, 12 cm, 13 cm, 14 cm, 15 cm, 16 cm, 17 cm, 18 cm, 19 cm, 20 cm, 21 cm on the side of the hearing aid facing the ear. , 22 centimeters, 23 centimeters, 24 centimeters and 25 centimeters is the radius of the hemisphere. The predetermined range may also be the distance between the user's two ears. For example, it may also be the range between the user's ears. That is to say, in the case of hearing aids as an example, the near-field distance is roughly the position of the user's head or vocal cords relative to the hearing aid.

因此，所述目标近场声源的位置在预定范围内，而所述目标远场声源位置在预定范围之外。所述目标远场声源到音响设备100的距离（“第一目标距离”）大于所述目标近场声源到音响设备100的距离（“第二目标距离”）。例如，所述第一目标距离可以指所述目标远场声源和所述第一声波传感器之间的距离;所述第二目标距离可以指所述目标近场声源与所述第一声波传感器之间的距离Therefore, the position of the target near-field sound source is within the predetermined range, while the position of the target far-field sound source is outside the predetermined range. The distance from the target far-field sound source to the audio device 100 (“first target distance”) is greater than the distance from the target near-field sound source to the audio device 100 (“second target distance”). For example, the first target distance may refer to the distance between the target far-field sound source and the first acoustic wave sensor; the second target distance may refer to the distance between the target near-field sound source and the first Distance between acoustic sensors

在一些实施例中，信号处理电路250可以包括差分电路。第一信号和第二信号经过差分电路后转化为输出信号。差分电路可以实现使音响设备100对来自目标近场声源的目标近场声波的灵敏度显著低于对来自目标远场声源的目标远场声波的灵敏度。比如，音响设备100对所述目标远场声波的灵敏度与对所述目标近场声波的灵敏度之比大于阈值。所述阈值可以为2、3、4、5、6、7、8、9、10等等数值。具体取值可以根据实际应用场景的需要根据经验来选择。关于音响设备100的详细原理描述请见图3及其相关描述。In some embodiments,signal processing circuitry 250 may include differential circuitry. The first signal and the second signal are converted into output signals after passing through the differential circuit. The differential circuit can realize that the sensitivity of theaudio device 100 to the target near-field sound waves from the target near-field sound source is significantly lower than the sensitivity to the target far-field sound waves from the target far-field sound source. For example, the ratio of the sensitivity of theaudio device 100 to the target far-field sound wave to the sensitivity to the target near-field sound wave is greater than a threshold. The threshold value may be 2, 3, 4, 5, 6, 7, 8, 9, 10 and so on. The specific value can be selected based on experience according to the needs of the actual application scenario. For a detailed description of the principle of theaudio device 100 , please refer to FIG. 3 and related descriptions.

图3是本申请中的音响设备的近场声源信号抑制原理示意图。图3中，第一声波传感器211和第二声波传感器221之间的间距为d。对于同一声源发出的声波，在传播到第一声波传感器211和第二声波传感器221时会存在幅度差和相位差。Fig. 3 is a schematic diagram of the near-field sound source signal suppression principle of the audio equipment in the present application. In FIG. 3 , the distance between the firstacoustic wave sensor 211 and the secondacoustic wave sensor 221 is d. For the sound waves emitted by the same sound source, there will be amplitude difference and phase difference when propagating to the firstsound wave sensor 211 and the secondsound wave sensor 221 .

所述目标远场声源位置在所述预定范围之外，也就是说目标远场声源150距离两个阵元都足够远，即R>>d。其中R表示目标远场声源150距离音响设备100的距离。此时，相较于目标近场声源140发出的目标近场声波，目标远场声源150的目标远场声波在传播到音响设备100时的波面更加近似于平面，因此目标远场声波的声压幅值在第一声波传感器211和第二声波传感器221处近似相同。The position of the target far-field sound source is outside the predetermined range, that is to say, the target far-field sound source 150 is far enough away from both array elements, that is, R>>d. Where R represents the distance between the target far-field sound source 150 and theaudio device 100 . At this time, compared with the target near-field sound wave sent by the target near-field sound source 140, the wave surface of the target far-field sound wave of the target far-field sound source 150 when propagating to theaudio device 100 is more similar to a plane, so the target far-field sound wave The magnitude of the sound pressure is approximately the same at the firstacoustic wave sensor 211 and the secondacoustic wave sensor 221 .

在一些实施例中，目标近场声源140的位置需要满足第一约束条件，目标远场声源150的位置需要满足第二约束条件。第一约束条件为，目标近场声源140发出的目标近场声波在第一声波传感器211和第二声波传感器221之间的声压幅值梯度的绝对值大于第一声压阈值。第二约束条件为，目标远场声源150发出的目标远场声波在第一声波传感器211处的声压幅值与第二声波传感器221之间的声压幅值梯度的绝对值小于第二声压阈值。In some embodiments, the position of the target near-field sound source 140 needs to satisfy the first constraint condition, and the position of the target far-field sound source 150 needs to satisfy the second constraint condition. The first constraint condition is that the absolute value of the sound pressure amplitude gradient between the firstsound wave sensor 211 and the secondsound wave sensor 221 of the target near-field sound wave emitted by the target near-field sound source 140 is greater than the first sound pressure threshold. The second constraint condition is that the absolute value of the sound pressure amplitude gradient between the sound pressure amplitude of the target far-field sound wave emitted by the target far-field sound source 150 at the firstsound wave sensor 211 and the secondsound wave sensor 221 is less than the first Two sound pressure thresholds.

由于声压幅值梯度同声源同测量点之间的距离正相关，并且近场声源的位置需要根据具体应用场景以及希望达到的结果由经验决定，因此所述声压阈值可以同所述近场声源和远场声源根据距离的定义一一对应。Since the sound pressure amplitude gradient is positively correlated with the distance between the sound source and the measurement point, and the position of the near-field sound source needs to be determined empirically according to the specific application scenario and the desired result, the sound pressure threshold can be the same as the Near-field sound sources and far-field sound sources correspond one-to-one according to the definition of distance.

目标近场声源的位置在所述预定范围之内，距离音响设备100较近。相较于目标远场声源150发出的目标远场声波，目标近场声源140发出的目标近场声波在传播到音响设备100时的波面更加近似于球面，因此其声压幅值随目标近场声波传播距离的增加而衰减得较为明显。设目标远场声源150或目标近场声源140处的声压为PS，在第一声波传感器211处形成的声压为P1，在第二声波传感器221处形成的声压为P2。目标近场声源140与第一声波传感器211的夹角为θ。其中，角度θ被定义为从第二传感器阵列指向第一传感器阵列的轴与从参考声源指向第一传感器阵列211的矢量之间的角度。在类似的定义下，目标远场声源150与第一声波传感器211的夹角为α。目标近场声源140到第一声波传感器211的距离为r1，到第二声波传感器221的距离为r2。目标远场声源150到第一声波传感器211的距离为R。则：The position of the target near-field sound source is within the predetermined range, and is relatively close to theaudio device 100 . Compared with the target far-field sound wave sent by the target far-field sound source 150, the wave surface of the target near-field sound wave sent by the target near-field sound source 140 is more similar to a spherical surface when it propagates to theaudio device 100, so its sound pressure amplitude varies with the target sound pressure. The attenuation is more obvious with the increase of the near-field sound wave propagation distance. Assume that the sound pressure at the target far-field sound source 150 or the target near-field sound source 140 is PS, the sound pressure formed at the firstsound wave sensor 211 is P1, and the sound pressure formed at the secondsound wave sensor 221 is P2. The included angle between the target near-field sound source 140 and the firstacoustic wave sensor 211 is θ. Wherein, the angle θ is defined as the angle between the axis pointing from the second sensor array to the first sensor array and the vector pointing from the reference sound source to thefirst sensor array 211 . Under a similar definition, the included angle between the target far-field sound source 150 and the firstacoustic wave sensor 211 is α. The distance from the target near-field sound source 140 to the firstsound wave sensor 211 is r1, and the distance to the secondsound wave sensor 221 is r2. The distance from the target far-field sound source 150 to the firstsound wave sensor 211 is R. but:

目标远场声源150在两个阵元处形成的声压幅值可以表达为：；The sound pressure amplitudes formed by the target far-field sound source 150 at the two array elements can be expressed as: ;

目标近场声源140在两个阵元处形成的声压幅值可以表达为：、。The sound pressure amplitudes formed by the target near-field sound source 140 at the two array elements can be expressed as: , .

目标远场声源150和目标近场声源140发出的声波在到达两个阵元时分别的相位差与声源信号的角频率ω以及两个阵元之间的间距d有关。设声速为c，则：The phase difference between the sound waves emitted by the target far-field sound source 150 and the target near-field sound source 140 when they reach the two array elements is related to the angular frequency ω of the sound source signal and the distance d between the two array elements. Let the speed of sound be c, then:

目标远场声波在两个阵元处形成的相位差为：；The phase difference formed by the target far-field acoustic wave at the two array elements is: ;

目标近场声波在两个阵元处形成的相位差为：。The phase difference formed by the target near-field acoustic wave at the two array elements is: .

因此，当目标近场声源140或目标远场声源150的频率较小时，其对应的目标近场声波或目标远场声波传播到两个阵元时的相位差就越小，甚至可以忽略不计。当音响设备100装配在助听器100-1上时，目标近场声源140为助听器佩戴者自己的声带。典型的成年男性具有85至180Hz的基本频率，以及165至255Hz的典型成年女性的基频。因为人的声音频率相对较低，人声的声波在两个阵元处形成的相位差也较小，甚至可以忽略。Therefore, when the frequency of the target near-field sound source 140 or the target far-field sound source 150 is small, the phase difference of the corresponding target near-field sound wave or target far-field sound wave propagating to the two array elements is smaller, or even negligible Excluding. When theaudio device 100 is assembled on the hearing aid 100-1, the target near-field sound source 140 is the hearing aid wearer's own vocal cords. A typical adult male has a fundamental frequency of 85 to 180 Hz, and a typical adult female has a fundamental frequency of 165 to 255 Hz. Because the frequency of the human voice is relatively low, the phase difference formed by the sound waves of the human voice at the two array elements is also small, and can even be ignored.

在一些实施例中，第一声波传感器211和第二声波传感器221的灵敏度相同（阵元的灵敏度表示其输出的电信号的能量幅值与接收到的声波信号的能量幅值的比值）。第一声波传感器211和第二声波传感器221分别将所述目标近场声波转化成电信号。在不考虑相位差的情况下，因为第一声波传感器211和第二声波传感器221处接收到声波信号幅值的不同，所述两个电信号的幅值也会不同。In some embodiments, the sensitivity of the firstacoustic wave sensor 211 and the secondacoustic wave sensor 221 is the same (the sensitivity of an array element represents the ratio of the energy amplitude of the electrical signal it outputs to the energy amplitude of the received acoustic wave signal). The firstacoustic wave sensor 211 and the secondacoustic wave sensor 221 convert the target near-field acoustic waves into electrical signals respectively. Without considering the phase difference, because the amplitudes of the acoustic signals received at the firstacoustic wave sensor 211 and the secondacoustic wave sensor 221 are different, the amplitudes of the two electrical signals will also be different.

在图3所示的实施例中，目标近场声源140距离第一声波传感器211更近，故目标近场声源在第一声波传感器211和第二声波传感器221之间接近球形波。因而，第一声波传感器211响应目标近场声源140的声波转换的第一初始信号的幅值（或称强度）会大于第二声波传感器221输出的第二初始信号的幅值。若第一声波传感器模块210和第二声波传感器模块220不包括其他电路元器件，则第一初始信号即为第一信号，第二初始信号即为第二信号，进而被输送到信号处理电路250中。当信号处理电路块250包括差分电路时，第一信号和第二信号两路信号做差。第一信号和第二信号之差被作为输出信号对应目标近场声波。In the embodiment shown in FIG. 3 , the target near-field sound source 140 is closer to the firstacoustic wave sensor 211, so the target near-field sound source is close to a spherical wave between the firstacoustic wave sensor 211 and the secondacoustic wave sensor 221. . Therefore, the amplitude (or intensity) of the first initial signal converted by the firstacoustic wave sensor 211 in response to the acoustic wave of the target near-field sound source 140 is greater than the amplitude (or intensity) of the second initial signal output by the secondacoustic wave sensor 221 . If the first acousticwave sensor module 210 and the second acousticwave sensor module 220 do not include other circuit components, the first initial signal is the first signal, and the second initial signal is the second signal, which is then sent to thesignal processing circuit 250 in. When the signalprocessing circuit block 250 includes a differential circuit, the difference between the first signal and the second signal is performed. The difference between the first signal and the second signal is used as an output signal corresponding to the target near-field sound wave.

与目标近场声源140相比，目标远场声源150离第一声波传感器211更远，因此目标远场声波在第一声波传感器211和第二声波传感器221之间更接近平面波。在声音传导装置100接收和/或检测和/或收集了目标远场声波之后，第一声波传感器211和第二声波传感器221处的声压的幅度可以是彼此接近或基本相同的。因而，第一信号跟第二信号在经过差分电路做差后几乎被全部消除。Compared with the target near-field sound source 140 , the target far-field sound source 150 is farther away from the firstsound wave sensor 211 , so the target far-field sound wave is closer to a plane wave between the firstsound wave sensor 211 and the secondsound wave sensor 221 . After thesound conducting device 100 receives and/or detects and/or collects the target far-field sound waves, the magnitudes of the sound pressures at the firstsound wave sensor 211 and the secondsound wave sensor 221 may be close to or substantially the same as each other. Therefore, the first signal and the second signal are almost completely eliminated after the differential circuit makes a difference.

本申请的目的之一是想要抑制输出信号中对应目标近场声源140的信号的强度，并且增强对应目标远场声源150的信号的强度。因此，可以对第一声波传感器模块210和/或第二声波传感器模块220做一定的调整，使得当音响设备100响应目标近场声源140时，第一信号和第二信号的幅值足够接近，以至于在经过差分电路处理后，显著削弱甚至消除输出信号。与此同时，音响设备100响应目标远场声源150时，第一信号和第二信号的幅值的差异增大，以至于在经过差分电路时后，可以增强对应的输出信号的强度。以下各实施例中可以围绕这个目标对音响设备100的电路结构进行调整。One of the purposes of the present application is to suppress the intensity of the signal corresponding to the target near-field sound source 140 in the output signal, and enhance the intensity of the signal corresponding to the target far-field sound source 150 . Therefore, certain adjustments may be made to the first acousticwave sensor module 210 and/or the second acousticwave sensor module 220, so that when theaudio device 100 responds to the target near-field sound source 140, the amplitudes of the first signal and the second signal are sufficient So close that after being processed by the differential circuit, the output signal is significantly weakened or even eliminated. At the same time, when theaudio device 100 responds to the target far-field sound source 150, the difference between the amplitudes of the first signal and the second signal increases, so that after passing through the differential circuit, the intensity of the corresponding output signal can be enhanced. In the following embodiments, the circuit structure of theaudio device 100 can be adjusted around this goal.

在一些实施例中，对音响设备100的电路结构进行调整可以包括调整第一声波传感器模块210和/或第二声波传感器模块220的灵敏度。例如，在图3所示的实施例中，可以通过增强第二声波传感器模块220的灵敏度的方式来达到音响设备100响应目标近场声源140时第一信号和第二信号的幅值相同或相近，从而在所述差分电路中相互抵消，达到输出信号被削弱或消除的目的。In some embodiments, adjusting the circuit structure of theaudio device 100 may include adjusting the sensitivity of the first acousticwave sensor module 210 and/or the second acousticwave sensor module 220 . For example, in the embodiment shown in FIG. 3 , the sensitivity of the second acousticwave sensor module 220 can be enhanced so that when theaudio device 100 responds to the target near-field sound source 140, the amplitudes of the first signal and the second signal are the same or equal. close to each other, thereby canceling each other in the differential circuit to achieve the purpose of weakening or eliminating the output signal.

应当认识到，增强第二声波传感器模块220的灵敏度仅仅是调整音响设备100电路结构的其中一种手段，当目标近场声源140位于图3中音响设备100左侧时，降低第二声波传感器模块220的灵敏度同样能够达到目的。同理，同时调节第一声波传感器模块210和第二声波传感器模块220的灵敏度同样能够达到目的，比如通过提高第一声波传感器模块210的灵敏度和降低第二声波传感器模块220的灵敏度等。It should be recognized that enhancing the sensitivity of the second acousticwave sensor module 220 is only one of the means to adjust the circuit structure of theaudio equipment 100. When the target near-field sound source 140 is located on the left side of theaudio equipment 100 in FIG. The sensitivity of themodule 220 also serves the purpose. Similarly, adjusting the sensitivity of the first acousticwave sensor module 210 and the second acousticwave sensor module 220 at the same time can also achieve the goal, for example, by increasing the sensitivity of the first acousticwave sensor module 210 and reducing the sensitivity of the second acousticwave sensor module 220 .

在增强第二声波传感器模块220的灵敏度的情况下，音响设备100响应目标远场声波时，对应的第二信号会被增强，与第一信号的差异增大，在经过差分电路处理后，输出信号会增强。In the case of enhancing the sensitivity of the second acousticwave sensor module 220, when theaudio equipment 100 responds to the target far-field acoustic wave, the corresponding second signal will be enhanced, and the difference with the first signal will increase. After being processed by the differential circuit, the output The signal will increase.

可以用系数B表示第二声波传感器模块220的灵敏度的调节幅度。在图3所示的场景下，系数B可以表示对第二声波传感器模块220的增强幅度。在第一声波传感器221和第二声波传感器221灵敏度相同的情况下，音响设备100响应目标近场声源140，当B=时，第一信号的幅值和第二信号的幅值相同，在经过差分电路后，输出信号几乎为0，近场声源信号的抑制效果较好。对于类似于助听器100-1的使用环境，音响设备100装配在设备110上后，目标近场声源140与设备110的空间位姿关系相对固定（例如，人的声带位置与助听器中的第一声波传感器和第二声波传感器的相对位置关系是固定的）。因此r1、r2可以提前确定，系数B也可以随之确定。如果B=，则音响设备100的输出信号会将目标近场声波对应信号完全消除，也就是助听器100-1对使用者自己的声音完全没有响应和输出。但是有时候适当保留助听器佩戴者自己的声音也有助于其听清自己说的话。这种情况下，通过在的附近调整B的值，可以控制助听器100-1对目标近场声波的响应输出。The adjustment range of the sensitivity of the second acousticwave sensor module 220 can be represented by coefficient B. In the scenario shown in FIG. 3 , the coefficient B may represent the enhancement magnitude of the second acousticwave sensor module 220 . In the case where the sensitivity of the firstacoustic wave sensor 221 and the secondacoustic wave sensor 221 are the same, theaudio equipment 100 responds to the target near-field sound source 140, when B= When , the amplitude of the first signal is the same as that of the second signal, and after passing through the differential circuit, the output signal is almost 0, and the suppression effect of the near-field sound source signal is better. For a usage environment similar to hearing aid 100-1, after theaudio device 100 is assembled on thedevice 110, the spatial position and posture relationship between the target near-field sound source 140 and thedevice 110 is relatively fixed (for example, the position of a person's vocal cords and the first position of the hearing aid) The relative positional relationship between the acoustic wave sensor and the second acoustic wave sensor is fixed). Therefore, r1 and r2 can be determined in advance, and the coefficient B can also be determined accordingly. If B= , the output signal of theaudio device 100 will completely eliminate the corresponding signal of the target near-field sound wave, that is, the hearing aid 100-1 has no response and output to the user's own voice at all. But sometimes properly retaining the hearing aid wearer's own voice can also help him hear what he is saying. In this case, pass the By adjusting the value of B, the response output of the hearing aid 100-1 to the target near-field sound wave can be controlled.

以下以完全消除目标近场声源信号为例进行说明音响设备100的工作原理。设目标近场声源140或目标远场声源150为，波数，则音响设备100分别响应两个声源的输出信号J_output（响应目标近场声源140）、Y_output（响应目标远场声源150）推导如下所出示：The working principle of theaudio device 100 will be described below by taking the complete elimination of the target near-field sound source signal as an example. Let the target near-field sound source 140 or the target far-field sound source 150 be , wave number , theaudio equipment 100 respectively responds to the output signals J_output (in response to the target near-field sound source 140 ) and Y_output (in response to the target far-field sound source 150 ) of the two sound sources, and the derivation is shown as follows:

a)音响设备100响应目标近场声波时:第一声波传感器211的第一初始信号为：，第一信号等于第一初始信号，其中k为所述波数；第二声波传感器221的第二初始信号为:，第二信号为第二初始信号乘以系数B：；第一信号和第二信号经过差分电路后的输出信号为:a) When theaudio equipment 100 responds to the target near-field sound wave: the first initial signal of the firstsound wave sensor 211 is: , the first signal is equal to the first initial signal, where k is the wave number; the second initial signal of the secondacoustic sensor 221 is: , the second signal is the second initial signal multiplied by the coefficient B: ; The output signal of the first signal and the second signal after the differential circuit is:

Joutput=（1）Joutput= (1)

b)音响设备100响应目标远场声波时:第一声波传感器211的第一初始信号为：，第一信号等于第一初始信号，其中k为所述波数；第二声波传感器221的第二初始信号为:，第二信号为第二初始信号乘以系数B：；第一信号和第二信号经过差分电路后的输出信号为:b) When theaudio equipment 100 responds to the target far-field sound wave: the first initial signal of the firstsound wave sensor 211 is: , the first signal is equal to the first initial signal, where k is the wave number; the second initial signal of the secondacoustic sensor 221 is: , the second signal is the second initial signal multiplied by the coefficient B: ; The output signal of the first signal and the second signal after the differential circuit is:

Youtput=（2）；Yououtput= (2);

由上述推导分析可知，当声源信号频率较低时，通过调节参数B，可以使第一声波传感器模块210响应目标近场声波时的第一信号和第二声波传感器模块220响应目标近场声波时的第二信号幅值相似或相同。因此，音响设备100的输出信号为0或者近似为0。第一声波传感器模块210响应目标远场声波的第一信号和第二声波传感器模块220响应目标远场声波时的第二信号幅值差异较大。因此，音响设备100的输出信号不为0。相应的，音响设备110对目标近场声源140产生的目标近场声波的灵敏度显著低于目标远场声源150所发出的目标远场声波的灵敏度。From the above derivation and analysis, it can be seen that when the frequency of the sound source signal is low, by adjusting the parameter B, the first acousticwave sensor module 210 can respond to the first signal of the target near-field sound wave and the second acousticwave sensor module 220 can respond to the target near-field sound wave. The amplitude of the second signal is similar or identical to that of the acoustic wave. Therefore, the output signal of theaudio device 100 is zero or approximately zero. The amplitude difference between the first signal of the first acousticwave sensor module 210 responding to the target far-field acoustic wave and the second signal of the second acousticwave sensor module 220 responding to the target far-field acoustic wave is relatively large. Therefore, the output signal of theaudio device 100 is not zero. Correspondingly, the sensitivity of theaudio device 110 to the target near-field sound waves generated by the target near-field sound source 140 is significantly lower than the sensitivity of the target far-field sound waves emitted by the target far-field sound source 150 .

在一些实施例中，系数B可以在预先设定的范围内调整，在这个范围内调整系数B时，音响设备100对目标近场声源140产生的目标近场声波的灵敏度显著低于目标远场声源150所发出的目标远场声波的灵敏度具体可以表示为：对于目标近场声源140处功率为A0的目标近场声波，相应的第一信号功率为B1，相应的第二信号功率为B2；对于目标远场声源150处功率为A0’的目标远场声波，相应的第一信号功率为B1’，相应的第二信号的功率为B2’。系数B在允许范围内调节时，(A0’|B1-B2|)/(A0|B1’-B2’|)小于信号阈值。信号阈值可以是预设的，用来表示音响设备100对目标近场声波的抑制程度的值。In some embodiments, the coefficient B can be adjusted within a preset range. When the coefficient B is adjusted within this range, the sensitivity of theaudio device 100 to the target near-field sound wave generated by the target near-field sound source 140 is significantly lower than that of the target far-field sound wave. The sensitivity of the target far-field sound wave sent by thefield sound source 150 can specifically be expressed as: for the target near-field sound wave with power A0 at the target near-field sound source 140, the corresponding first signal power is B1, and the corresponding second signal power is B1. is B2; for the target far-field sound wave with power A0' at the target far-field sound source 150, the corresponding first signal power is B1', and the corresponding second signal power is B2'. When the coefficient B is adjusted within the allowable range, (A0’|B1-B2|)/(A0|B1’-B2’|) is less than the signal threshold. The signal threshold may be preset, and is used to indicate the degree of suppression of the target near-field sound wave by theaudio device 100 .

系数B的调节方式可以包括多种方式。其中一种调节方式可以是调节第一声波传感器211和/或第二声波传感器221的灵敏度（假设原来两阵元的灵敏度相同）。当第一声波传感器模块210和第二声波传感器模块220内除了第一声波传感器211和第二声波传感器221之外不包括其他电路元器件时，第一初始信号即为第一信号，第二初始信号即为第二信号。以图3为例，增大第二声波传感器221的灵敏度即可以增大第二信号的幅值。增大第二声波传感器221的灵敏度的范围可以依据系数B的允许范围。例如，当音响设备100的目标是完全抑制目标近场声源140的信号时，系数B的值可以为。可以调节第二声波传感器221的灵敏度，使得第二声波传感器模块220输出的第二信号的幅值为调节前的幅值乘以系数B。这种系数B的调节方式可以应用在助听器100-1的适配领域。当佩戴者在验配助听器100-1时，其声带位置距离第一声波传感器211和第二声波传感器221的距离也就确定，可以据此对第二声波传感器221的灵敏度进行调整和/或配置。There are many ways to adjust the coefficient B. One of the adjustment methods may be to adjust the sensitivity of the firstacoustic wave sensor 211 and/or the second acoustic wave sensor 221 (assuming that the original sensitivity of the two array elements is the same). When the first acousticwave sensor module 210 and the second acousticwave sensor module 220 do not include other circuit components except the firstacoustic wave sensor 211 and the secondacoustic wave sensor 221, the first initial signal is the first signal, and the first initial signal is the first signal. The second initial signal is the second signal. Taking FIG. 3 as an example, increasing the sensitivity of the secondacoustic wave sensor 221 can increase the amplitude of the second signal. The range of increasing the sensitivity of the secondacoustic wave sensor 221 may depend on the allowable range of the coefficient B. For example, when the goal of theaudio equipment 100 is to completely suppress the signal of the target near-field sound source 140, the value of the coefficient B can be . The sensitivity of the secondacoustic wave sensor 221 can be adjusted so that the amplitude of the second signal output by the second acousticwave sensor module 220 is the amplitude before adjustment multiplied by the coefficient B. This method of adjusting the coefficient B can be applied in the field of fitting of the hearing aid 100-1. When the wearer is fitting the hearing aid 100-1, the distance between the position of his vocal cords and the firstacoustic wave sensor 211 and the secondacoustic wave sensor 221 is also determined, and the sensitivity of the secondacoustic wave sensor 221 can be adjusted accordingly and/or configuration.

在图3所示的音响设备100中，对第二声波传感器221灵敏度的调节需要根据音响设备100同目标近场声源140之间的位置关系决定增大还是降低第二声波传感器221的灵敏度。当图3中的目标近场声源140的位置位于音响设备100左侧时，为了达成音响设备100一致目标近场声波的目的，适用减小第二声波传感器221的灵敏度。当图3中的目标近场声源140的位置位于音响设备100右侧时，为了达成音响设备100一致目标近场声波的目的，适用增加第二声波传感器221的灵敏度。本领域普通技术人员可知，调节第二声波传感器221的灵敏度本质上是调整第一声波传感器211和第二声波传感器221在响应标定声s波时输出信号幅值相互关系。能够达到此目的的其他的调整方式都包括在本申请的范围内。比如，单独增加第二声波传感器221的灵敏度可以通过减小第一声波传感器211灵敏度或同时减小第一声波传感器211灵敏度和增加第二声波传感器221灵敏度的方式达到同样的效果。In theaudio device 100 shown in FIG. 3 , the adjustment of the sensitivity of the secondacoustic wave sensor 221 needs to determine whether to increase or decrease the sensitivity of the secondacoustic wave sensor 221 according to the positional relationship between theaudio device 100 and the target near-field sound source 140 . When the position of the target near-field sound source 140 in FIG. 3 is located on the left side of theaudio device 100 , in order to achieve the same target near-field sound wave of theaudio device 100 , it is suitable to reduce the sensitivity of the secondsound wave sensor 221 . When the position of the target near-field sound source 140 in FIG. 3 is on the right side of theaudio device 100 , in order to achieve the same target near-field sound wave of theaudio device 100 , it is suitable to increase the sensitivity of the secondsound wave sensor 221 . Those skilled in the art know that adjusting the sensitivity of the secondacoustic wave sensor 221 is essentially adjusting the relationship between the output signal amplitudes of the firstacoustic wave sensor 211 and the secondacoustic wave sensor 221 in response to the calibration acoustic s-wave. Other adjustments that can achieve this purpose are included within the scope of the present application. For example, increasing the sensitivity of the secondacoustic sensor 221 alone can achieve the same effect by reducing the sensitivity of the firstacoustic sensor 211 or reducing the sensitivity of the firstacoustic sensor 211 and increasing the sensitivity of the secondacoustic sensor 221 at the same time.

图4是本申请的中的包括幅值调节电路的音响设备的一个实施例的示意图。图4展示了调整系数B的另一种方式。当第一声波传感器211和第二声波传感器221的灵敏度相同时，调整系数B的方式可以包括在第一声波传感器模块210和/或第二声波传感器模块220中加入幅值调节电路的方式实现。以图4所示的实施例为例，第二声波传感器模块220中可以包括幅值调节电路222，连接在第二声波传感器221之后。第二声波传感器221输出的第二初始信号可以由幅值调节电路222调整信号幅值后再输出，作为第二信号。幅值调节电路222对第二初始信号的调节幅度（即系数B）可以根据目标近场声源140分别距离两个阵元的距离进行配置。例如，音响设备100被配置为消除对目标近场声波的响应时，调节幅度B可以为。当需要保留部分对目标近场声源140的响应时，调节幅度B可以在的邻域区间上下调整。FIG. 4 is a schematic diagram of an embodiment of an audio device including an amplitude adjustment circuit in the present application. Figure 4 shows another way to adjust the coefficient B. When the sensitivity of the firstacoustic wave sensor 211 and the secondacoustic wave sensor 221 are the same, the manner of adjusting the coefficient B may include adding an amplitude adjustment circuit in the first acousticwave sensor module 210 and/or the second acousticwave sensor module 220 accomplish. Taking the embodiment shown in FIG. 4 as an example, the second acousticwave sensor module 220 may include anamplitude adjustment circuit 222 connected after the secondacoustic wave sensor 221 . The second initial signal output by the secondacoustic wave sensor 221 can be output after theamplitude adjustment circuit 222 adjusts the signal amplitude as the second signal. The adjustment amplitude (ie, coefficient B) of the second initial signal by theamplitude adjustment circuit 222 may be configured according to the distances between the target near-field sound source 140 and the two array elements. For example, when theaudio equipment 100 is configured to eliminate the response to the target near-field sound wave, the adjustment range B can be . When it is necessary to retain part of the response to the target near-field sound source 140, the adjustment range B can be Neighborhood intervals are adjusted up and down.

幅值调节电路222对第二初始信号的调节可以包括或引入信号幅值增益和信号幅值抑制。在图4中，当目标近场声源140位于音响设备100左侧时，幅值调节电路222需要对第二初始信号的幅值进行削弱，以便生成的第二信号与第一信号的幅值相匹配。The adjustment of the second initial signal by theamplitude adjustment circuit 222 may include or introduce signal amplitude gain and signal amplitude suppression. In FIG. 4, when the target near-field sound source 140 is located on the left side of theaudio device 100, theamplitude adjustment circuit 222 needs to weaken the amplitude of the second initial signal so that the generated second signal has the same amplitude as the first signal match.

在一些实施例中，幅值调节电路222的调节幅度B是可以动态变化/调整的。例如在一些非助听器类的使用场景下，目标近场声源140的位置可以是动态变化的，其距离两个阵元的距离也是动态变化的。以完全消除目标近场声波为例，如果系数B的取值为，则B的值只有实时地适应r1和r2的变化，才能够使得音响设备100始终保持抑制目标近场声源140的效果。具体地，目标近场声源140的位置变化时，r1和r2的值随之变化，对应的第一初始信号的幅值和第二初始信号的幅值也随之变化。幅值调节电路222可以根据第一初始信号的幅值和第二初始信号的幅值的变化趋势实时调整其幅值调节幅度B。In some embodiments, the adjustment range B of theamplitude adjustment circuit 222 can be changed/adjusted dynamically. For example, in some non-hearing aid usage scenarios, the position of the target near-field sound source 140 may change dynamically, and the distance between the target near-field sound source 140 and the two array elements may also change dynamically. Taking the complete elimination of target near-field sound waves as an example, if the value of coefficient B is , then only when the value of B adapts to the changes of r1 and r2 in real time can theaudio equipment 100 always maintain the effect of suppressing the target near-field sound source 140 . Specifically, when the position of the target near-field sound source 140 changes, the values of r1 and r2 change accordingly, and the corresponding amplitudes of the first initial signal and the second initial signal also change accordingly. Theamplitude adjustment circuit 222 can adjust its amplitude adjustment range B in real time according to the change trend of the amplitude of the first initial signal and the amplitude of the second initial signal.

在一些实施例中，幅值调节电路222也可以装在第一声波传感器模块210的内部，或同时装在第一声波传感器模块210和第二声波传感器模块220的内部。其幅值调节原理与图4所示的实施例相同。在一些实施例中，幅值调节电路222可以独立于第一声波传感器模块210和/或第二声波传感器模块220而存在。In some embodiments, theamplitude adjustment circuit 222 can also be installed inside the first acousticwave sensor module 210 , or installed inside the first acousticwave sensor module 210 and the second acousticwave sensor module 220 at the same time. Its amplitude adjustment principle is the same as the embodiment shown in FIG. 4 . In some embodiments, theamplitude adjustment circuit 222 may exist independently of the first acousticwave sensor module 210 and/or the second acousticwave sensor module 220 .

图5是本申请的中的包括信号放大电路的音响设备的一个实施例的示意图。在近场信号抑制音响设备中，由于对第一信号和第二信号进行了信号的差分处理，会造成信号幅值的整体减小，包括响应目标近场声波的输出信号和相应目标远场声波的输出信号。为了弥补信号的损失，音响设备100进一步包括信号放大电路270。信号放大电路270可以连接在信号处理电路250（例如，包括差分电路）之后以对由信号处理电路250生成的信号进行放大。另外，在差分电路后连接信号放大电路270可以使得音响设备100对目标远场声源150的灵敏度增强。当音响设备100应用与助听器100-1时，有利于佩戴者听清远处的声音。在一些实施例中，信号放大电路270可以与信号处理电路250集成在一起或作为其一部分。在一些实施例中，信号放大电路270可以独立于信号处理电路250而存在。在一些实施例中，信号放大电路也可以连接在信号处理电路250之前，分别位于电路230和240中。Fig. 5 is a schematic diagram of an embodiment of an audio device including a signal amplifying circuit in the present application. In the near-field signal suppression audio equipment, due to the differential processing of the first signal and the second signal, the overall signal amplitude will be reduced, including the output signal in response to the target near-field sound wave and the corresponding target far-field sound wave output signal. In order to compensate for signal loss, theaudio device 100 further includes asignal amplifying circuit 270 . Thesignal amplification circuit 270 may be connected after the signal processing circuit 250 (for example, including a differential circuit) to amplify a signal generated by thesignal processing circuit 250 . In addition, connecting thesignal amplification circuit 270 after the differential circuit can enhance the sensitivity of theaudio device 100 to the target far-field sound source 150 . When theaudio device 100 is applied to the hearing aid 100-1, it is beneficial for the wearer to hear distant sounds clearly. In some embodiments, thesignal amplification circuit 270 may be integrated with or a part of thesignal processing circuit 250 . In some embodiments, thesignal amplification circuit 270 may exist independently of thesignal processing circuit 250 . In some embodiments, the signal amplifying circuit can also be connected before thesignal processing circuit 250 and located in thecircuits 230 and 240 respectively.

图6是本申请中包括相位调节电路的音响设备的一个实施例的示意图。根据之前的分析，在声源频率较低的情况下，才可以忽略相位差的影响，比如在人声的情况下。但是，为了增加音响设备100可以适用的场景，可以通过在第一声波传感器模块210和/或第二声波传感器模块220中加入相位调节电路的方式来消除或减小目标近场声波在传播到第一声波传感器211和第二声波传感器221时的相位差。以图6为例，第一声波传感器模块210中包括相位调节电路212，连接在第一声波传感器211和信号处理电路250之间。FIG. 6 is a schematic diagram of an embodiment of an audio device including a phase adjustment circuit in the present application. According to the previous analysis, the influence of phase difference can only be ignored when the frequency of the sound source is low, such as in the case of human voice. However, in order to increase the applicable scenarios of theaudio equipment 100, a phase adjustment circuit may be added to the first acousticwave sensor module 210 and/or the second acousticwave sensor module 220 to eliminate or reduce the propagation of the target near-field sound wave to The phase difference between the firstacoustic wave sensor 211 and the secondacoustic wave sensor 221 . Taking FIG. 6 as an example, the first acousticwave sensor module 210 includes aphase adjustment circuit 212 connected between the firstacoustic wave sensor 211 and thesignal processing circuit 250 .

目标近场声源140的目标近场声波到达第一声波传感器211的时间比到达第二声波传感器221的时间超前秒。当音响设备100被配置为完全消除对目标近场声波的响应时，相位调节电路212可以被配置为将第一初始信号延迟T秒后输出，作为第一信号。这样由于目标近场声波到达第二声波传感器221和到达第一声波传感器211的时间差所引起的相位差可以被完全补偿。The target near-field sound wave of the target near-field sound source 140 arrives at the firstsound wave sensor 211 earlier than the time at the secondsound wave sensor 221 Second. When theaudio device 100 is configured to completely eliminate the response to the target near-field sound wave, thephase adjustment circuit 212 may be configured to delay the first initial signal for T seconds and output it as the first signal. In this way, the phase difference caused by the time difference between the target near-field acoustic wave reaching the secondacoustic wave sensor 221 and the firstacoustic wave sensor 211 can be fully compensated.

在一些实施例中，相位调节电路212对第一初始信号的延迟也可以围绕T秒上下调整，使得音响设备100可以实现对目标近场声波输出响应的不完全抑制，保留部分对目标近场声波的响应。在一些实施例中，相位调节电路212也可以装在第二声波传感器模块210的内部，或同时装在第一声波传感器模块210和第二声波传感器模块220的内部。在一些实施例中，相位调节电路212可以独立于第一声波传感器模块210和/或第二声波传感器模块220而存在。In some embodiments, the delay of the first initial signal by thephase adjustment circuit 212 can also be adjusted up and down around T seconds, so that theaudio device 100 can realize incomplete suppression of the output response to the target near-field sound wave, and retain part of the target near-field sound wave the response to. In some embodiments, thephase adjustment circuit 212 can also be installed inside the second acousticwave sensor module 210 , or installed inside the first acousticwave sensor module 210 and the second acousticwave sensor module 220 at the same time. In some embodiments,phase adjustment circuit 212 may exist independently of first acousticwave sensor module 210 and/or second acousticwave sensor module 220 .

图7是本申请中的包括子带分解模块的音响设备的一个实施例的示意图。在图6中，当加入相位调节电路212来将第一初始信号延迟T秒输出时，响应目标近场声波的输出信号被完全消除。在某些不需要将目标近场声源140的信号完全消除的情况下，相位调节电路212对第一初始信号的延迟可以稍提前或滞后于T秒。这种情况下，相位调节电路212可以针对不同频率的目标近场声波提供不同的延迟时间。因为声音在空气中的传播速度是恒定值，独立于频率，目标近场声波的高、低频信号传递至两阵元的时间差Δt便是固定的。由相位差∆Ф=ω*∆t可知，随着信号频率的升高，第一声波传感器211和第二声波传感器221响应目标近场声波的相位差逐渐增大，进而对应的第一信号和第二信号的差值也将逐渐增大，影响对目标近场声源140信号的抑制效果。因此，若想得到均衡的频率响应，可以在第一声波传感器模块210和第二声波传感器模块220中加入子带分解模块，将第一初始信号和第二初始信号分解为若干子频带，再分别适配独立的相位调节电路，以保证对于每个频带，两个阵元模块的输出信号的相位差相同。Fig. 7 is a schematic diagram of an embodiment of an audio device including a subband decomposition module in the present application. In FIG. 6, when thephase adjustment circuit 212 is added to delay the output of the first initial signal for T seconds, the output signal in response to the target near-field sound wave is completely eliminated. In some cases where it is not necessary to completely eliminate the signal of the target near-field sound source 140, the delay of the first initial signal by thephase adjustment circuit 212 may be slightly earlier or later than T seconds. In this case, thephase adjustment circuit 212 may provide different delay times for target near-field sound waves of different frequencies. Because the propagation speed of sound in the air is a constant value, independent of frequency, the time difference Δt between the high and low frequency signals of the target near-field sound wave transmitted to the two array elements is fixed. It can be seen from the phase difference ∆Ф=ω*∆t that as the signal frequency increases, the phase difference between the firstacoustic wave sensor 211 and the secondacoustic wave sensor 221 in response to the target near-field acoustic wave gradually increases, and the corresponding first signal The difference with the second signal will also gradually increase, affecting the suppression effect on the signal of the target near-field sound source 140 . Therefore, if one wants to obtain a balanced frequency response, a sub-band decomposition module can be added to the first acousticwave sensor module 210 and the second acousticwave sensor module 220 to decompose the first initial signal and the second initial signal into several sub-frequency bands, and then respectively An independent phase adjustment circuit is adapted to ensure that for each frequency band, the phase difference of the output signals of the two array element modules is the same.

在图7所示的实施例中，第一声波传感器模块210中加入了子带分解模块213，将第一声波传感器211输出的第一初始信号分解为若干频带。同理，第二声波传感器模块220中加入的子带分解模块223可以将第二初始信号根据自带分解模块213相同的分解方法，分解为若干频带。在第一声波传感器模块210中，相位调节电路212针对每个频带有单独的相位调节子电路，多个相位调节子电路可以相互独立地对每个频带的信号施加不同程度的延时，其中n表示频带的序号。所述幅值调节电路222也可以针对每个频带设立幅值调节子电路，对每个频带的输出信号都进行幅值调整，调整的幅度（值）相同。所述信号处理电路250中可以针对每个频带设有单独的差分电路，每个差分电路对应一组某个频带下从第一声波传感器模块210输出的信号和第二声波传感器模块220输出的信号。所述信号处理电路250可以进一步包括信号合成电路251，将每个差分电路的输出信号合成后再输出，作为音响设备100的输出信号。In the embodiment shown in FIG. 7 , asubband decomposition module 213 is added to the first acousticwave sensor module 210 to decompose the first initial signal output by the firstacoustic wave sensor 211 into several frequency bands. Similarly, thesub-band decomposing module 223 added to the second acousticwave sensor module 220 can decompose the second initial signal into several frequency bands according to the same decomposition method as the self-containeddecomposing module 213 . In the first acousticwave sensor module 210, thephase adjustment circuit 212 has a separate phase adjustment sub-circuit for each frequency band, and multiple phase adjustment sub-circuits can apply different degrees of delay to signals of each frequency band independently of each other. , where n represents the serial number of the frequency band. Theamplitude adjustment circuit 222 may also set up an amplitude adjustment sub-circuit for each frequency band to perform amplitude adjustment on the output signal of each frequency band, and the adjusted amplitude (value) is the same. Thesignal processing circuit 250 may be provided with a separate differential circuit for each frequency band, and each differential circuit corresponds to a set of signals output from the first acousticwave sensor module 210 and signals output by the second acousticwave sensor module 220 in a certain frequency band. Signal. Thesignal processing circuit 250 may further include asignal synthesis circuit 251 , which synthesizes the output signals of each differential circuit and outputs them as the output signal of theaudio device 100 .

以第一声波传感器211的响应信号为例，设定第n个频带的相位差为，则第一声波传感器211和第二声波传感器221分别响应目标近场声源140的第n个频带的输出的信号、的相位分别为：Taking the response signal of the firstacoustic wave sensor 211 as an example, the phase difference of the nth frequency band is set as , then the firstacoustic wave sensor 211 and the secondacoustic wave sensor 221 respectively respond to the output signal of the nth frequency band of the target near-field sound source 140 , The phases are:

=*（）、=*（）（3） = *( ), = *( )(3)

相位差为：The phase difference is:

*（）-*（）（4） *( )- *( ) (4)

由上式可知不同频带n对应的延时应设置为：It can be seen from the above formula that the delay corresponding to different frequency bands n should be set as:

（5） (5)

在[0,π]范围内的变化，相位差越小，则音响设备100对目标近场声源140信号的抑制效果越好。对于每个频带，可以取相同的值，则因为频带对应频率的不同，对应的相位调节子电路对信号的延迟时间也不同。这种针对不同频带分别调整信号延迟的方法可以使得输出信号中对于目标近场声源信号抑制效果对于各频带都是均衡的。 Changes in the range [0, π], phase difference The smaller the value is, the better the suppression effect of theaudio equipment 100 on the signal of the target near-field sound source 140 is. For each frequency band, Can take the same value, because the corresponding frequency of the frequency band is different, the delay time of the corresponding phase adjustment sub-circuit to the signal Also different. This method of separately adjusting the signal delay for different frequency bands can make the suppression effect of the target near-field sound source signal in the output signal equal to each frequency band.

回到图1所示的设备应用场景，音响设备100除了应用在助听器100-1上外，还可以应用在类似的头戴式电子设备中，比如骨传导耳机，以及其他具有收音功能的耳机中。Going back to the device application scenario shown in Figure 1, theaudio device 100 can be used in similar head-mounted electronic devices, such as bone conduction earphones, and other earphones with a sound-receiving function, in addition to being applied to the hearing aid 100-1. .

设备110上还可以设有距离调节装置，用来调节第一声波传感器211与第二声波传感器221之间的距离，以增强音响设备对不同频率声源的适应性。Thedevice 110 can also be provided with a distance adjusting device, which is used to adjust the distance between the firstacoustic wave sensor 211 and the secondacoustic wave sensor 221, so as to enhance the adaptability of the audio equipment to sound sources of different frequencies.

所述头戴式电子设备可以包括入耳式助听器，入耳式助听器可以包括至少一个耳塞。所述至少一个耳塞中可以设有音响设备100，第一声波传感器211和第二声波传感器221位于至少一个耳塞中。The head-mounted electronic device may include an in-ear hearing aid, and the in-ear hearing aid may include at least one earplug. Theaudio device 100 may be disposed in the at least one earplug, and the firstacoustic wave sensor 211 and the secondacoustic wave sensor 221 are located in the at least one earplug.

在一些实施例中，至少一个耳塞内还可以包括至少一个信号转换器，信号转换器可以接收音响设备100的输出信号（例如通过电路260，以及设置在基座200上的接口），并输出人耳蜗可感知的信号。在一些实施例中，人耳蜗可感知的信号可以是声音信号，则信号转换器可以是扬声器。在一些实施例中，人耳蜗可感知的信号可以是骨传导信号，则信号转换器可以将音响设备100输出的电信号转化为振动信号通过佩戴者面部骨骼传递到耳蜗。In some embodiments, at least one earplug may further include at least one signal converter, and the signal converter may receive the output signal of the audio device 100 (for example, through thecircuit 260 and the interface provided on the base 200), and output Signals sensed by the cochlea. In some embodiments, the signal perceivable by the human cochlea can be a sound signal, and the signal converter can be a loudspeaker. In some embodiments, the signal perceivable by the human cochlea can be a bone conduction signal, and the signal converter can convert the electrical signal output by theaudio device 100 into a vibration signal and transmit it to the cochlea through the wearer's facial bones.

在一些实施例中，设备110上还可以设有适配按钮。当适配按钮按下时，幅值调节电路222可以根据当前时刻第一声波传感器211输出的第一初始信号和第二声波传感器221输出的第二初始信号调整其幅值调节幅度（原理请见图3及其相关描述）。以助听器为例，不同的佩戴者其声带距离耳部的距离是不同的，而耳部通常是助听器的佩戴位置。如果幅值调节电路222的幅值调节幅度不能由用户自己调节，那么佩戴者必须通过验配，才能根据自己声带位置确定幅值调节电路222的调节幅度，这不利于助听器的量产。如果增设设配按钮，厂家可以批量地生产助听器，用户在获得产品后可以进行适配操作。例如，将助听器佩戴好之后，按下适配按钮后在较为安静的环境下自己发声，则此时的声源位置就为佩戴者的声带位置。幅值调节电路222在此时确定的幅值调节幅度是针对该佩戴者的。该助听器再由其他佩戴者使用时，也可以通过同样的方法适配其他佩戴者，这可以使得助听器可以实现共享。区别于普通的入耳式助听器，骨传导技术应用在助听器领域时尤为使用这种适配方法。由于入耳式助听器需要针对人的耳道结构进行定制，所以不利于进行分享。而骨传导技术则无需针对人的耳道结构进行特别验配，任何人都可以佩戴。In some embodiments, an adaptation button may also be provided on thedevice 110 . When the adaptation button is pressed, theamplitude adjustment circuit 222 can adjust its amplitude adjustment range according to the first initial signal output by the firstacoustic wave sensor 211 and the second initial signal output by the secondacoustic wave sensor 221 at the current moment (see See Figure 3 and its associated description). Taking hearing aids as an example, different wearers have different distances from the vocal cords to the ears, and the ears are usually where hearing aids are worn. If the amplitude adjustment range of theamplitude adjustment circuit 222 cannot be adjusted by the user, the wearer must go through fitting to determine the adjustment range of theamplitude adjustment circuit 222 according to the position of his vocal cords, which is not conducive to the mass production of hearing aids. If a matching button is added, manufacturers can mass-produce hearing aids, and users can perform matching operations after obtaining the products. For example, after wearing the hearing aid, press the fitting button and make a sound by yourself in a relatively quiet environment, then the position of the sound source at this time is the position of the wearer's vocal cords. The amplitude adjustment range determined by theamplitude adjustment circuit 222 at this time is specific to the wearer. When the hearing aid is used by other wearers, it can also be adapted to other wearers through the same method, which can make the hearing aids shareable. Different from ordinary in-ear hearing aids, this adaptation method is especially used when bone conduction technology is applied in the field of hearing aids. Since in-ear hearing aids need to be customized for the structure of the human ear canal, it is not conducive to sharing. Bone conduction technology does not require special fitting for the structure of the human ear canal, and anyone can wear it.

音响设备100应用与类似于智能电视112和智能音响113上时，这类智能设备一般包括扬声器。在用户通过语音命令对这类智能设备施加控制指令时，对于设备来说，用户的声源位置较远，而自身扬声器的位置较近，扬声器的声音可能会盖过用户的声音，对识别用户的指令造成干扰。因此在装配音响设备100后，智能设备可以更好地识别远处的人声，从而增强对语音指令的识别能力。在这类设备中，扬声器即为目标近场声源140的位置，其相对于设备自身是固定的。When theaudio device 100 is applied to a smart TV 112 and a smart audio 113 , such smart devices generally include speakers. When the user applies control instructions to such smart devices through voice commands, the user's sound source is relatively far away for the device, while its own speaker is relatively close. instructions interfere. Therefore, after theaudio device 100 is installed, the smart device can better recognize distant human voices, thereby enhancing the ability to recognize voice commands. In such devices, the speaker is the location of the target near-field sound source 140, which is fixed relative to the device itself.

图8A和图8B是本申请中的音响设备对目标近场声源（近场）和目标远场声源（远场）的方向响应示意图。以助听器为例，佩戴者的发声部位与两个阵元的距离r₁、r₂可以提前确定，系数B也可以随之确定。在图3所示的实施例中，r₂可以通过声源与第一声波传感器211的距离、阵元间的距离d以及声源与第一声波传感器的夹角θ表示：。8A and 8B are schematic diagrams of the directional response of the audio equipment in this application to the target near-field sound source (near field) and the target far-field sound source (far-field). Taking a hearing aid as an example, the distancesr₁ andr₂ between the wearer's vocal part and the two array elements can be determined in advance, and the coefficientB can also be determined accordingly. In the embodiment shown in FIG. 3,r2 can be expressed by the distance between the sound source and the firstacoustic wave sensor 211,_the distanced between the array elements, and the angleθ between the sound source and the first acoustic wave sensor: .

图8A和图8B的目标近场声源信号抑制效果是在以下条件下进行的：声源信号为频率范围在0~2000Hz纯音，目标近场声源140和目标远场声源150在第一声波传感器211处的声压P₁=1P_a，取R=1m，d=0.01m，r₁=0.1m，则r₂=0.11m，B=1.1。The suppression effect of the target near-field sound source signal in Fig. 8A and Fig. 8B is carried out under the following conditions: the sound source signal is a pure tone in the frequency range of 0 ~ 2000 Hz, and the target near-field sound source 140 and the target far-field sound source 150 are in the first The sound pressure at theacoustic wave sensor 211 isP₁ =1P_a , ifR =1m,d =0.01m,r₁ =0.1m, thenr₂ =0.11m,B =1.1.

图8A和图8B对应的实施例为图4中的实施例，幅值调节电路222只包括幅值增益的功能，且第一声波传感器模块210不包含相位调节功能。图8A和图8B中的同心圆表示信号的幅值，越靠外侧输出信号的幅值越大。图8A中，在频率较低的情况下（f=400以下），音响设备100对θ为-90°~90°的目标近场声源信号均有明显的抑制效果。应当认识到，当所述幅值调节电路可以对信号进行削弱时，在90°至-90°的范围内也可以有类似的效果。图8B中，音响设备100对目标远场声源150相较于目标近场声源140没有产生抑制效果。The embodiment corresponding to FIG. 8A and FIG. 8B is the embodiment in FIG. 4 , theamplitude adjustment circuit 222 only includes the function of amplitude gain, and the first acousticwave sensor module 210 does not include the phase adjustment function. The concentric circles in FIG. 8A and FIG. 8B indicate the amplitude of the signal, and the output signal has a larger amplitude on the outer side. In FIG. 8A , in the case of low frequency (f = below 400), theaudio device 100 has a significant suppression effect on target near-field sound source signals withθ ranging from -90° to 90°. It should be realized that while the amplitude adjustment circuit can attenuate the signal, a similar effect can also be obtained in the range of 90° to -90°. In FIG. 8B , theaudio device 100 has no suppression effect on the target far-field sound source 150 compared to the target near-field sound source 140 .

图9A、图9B和图9C是本申请中的音响设备的不同实施例下的0°方向频率响示意图。其中图9A对应图3所示的实施例，图9B对应图6所示的实施例。图8A和图8B中的横轴表示声源信号的频率，纵轴表示音响设备100输出信号的强度。Fig. 9A, Fig. 9B and Fig. 9C are schematic diagrams of the frequency response in the 0° direction under different embodiments of the audio equipment in this application. 9A corresponds to the embodiment shown in FIG. 3 , and FIG. 9B corresponds to the embodiment shown in FIG. 6 . In FIGS. 8A and 8B , the horizontal axis represents the frequency of the sound source signal, and the vertical axis represents the intensity of the output signal of theaudio device 100 .

在图9A中，频率约低时（如400Hz一下），音响设备100对目标近场声源140（即图中近场声源）的响应要明显低于对目标远场声源150（即图中远场声源）的响应，即声源频率越低，音响设备100对目标近场声源信号的抑制效果越好。In FIG. 9A , when the frequency is about 400 Hz or lower, the response of theaudio equipment 100 to the target near-field sound source 140 (that is, the near-field sound source in the figure) is obviously lower than that to the target far-field sound source 150 (that is, the target far-field sound source 150 (that is, in the figure) mid-field sound source), that is, the lower the frequency of the sound source, the better the suppression effect of theaudio equipment 100 on the target near-field sound source signal.

在图9B中，由于对于每个频带，相位调节子电路都可以施加不同的延时，致使两个阵元模块中每个频带输出信号的相位差可以保持稳定，而不随着频率的变化而改变。故在图9B中，音响设备100可以在更宽的频率区间内保持对目标近场声源信号的抑制效果。In Figure 9B, since the phase adjustment sub-circuit can apply different delays for each frequency band, the phase difference of the output signals of each frequency band in the two array element modules can be kept stable and does not change with the change of frequency . Therefore, in FIG. 9B , theaudio device 100 can maintain the suppression effect on the target near-field sound source signal in a wider frequency range.

在图9C中，示出了根据实际需求调节音响设备对不同频带的输出信号幅度。可通过改变特定频带的延时T_n，改变两阵元对不同频带信号的相位差∆Ф_n，从而改变不同频带的输出信号幅度。在图9C中，在0Hz~1700Hz以及2300Hz以上各频带相位差均取∆Ф_1n= π/1000，在2000Hz频带处相位差均取∆Ф_2n= π/200，对应频带延时可根据公式T_n= r₂/c – r₁/c + (∆Ф_n)/ω_n求得。可以看出，根据需求改变延时，可以获得所需的频响曲线。In FIG. 9C , it is shown that the output signal amplitude of the audio equipment for different frequency bands is adjusted according to actual needs. By changing the delayT_n of a specific frequency band, the phase difference∆Ф_n of the two array elements for signals of different frequency bands can be changed, thereby changing the output signal amplitudes of different frequency bands. In Figure 9C, the phase difference in each frequency band from 0Hz to 1700Hz and above 2300Hz is ∆Ф_1n = π/1000, and the phase difference in the 2000Hz frequency band is ∆Ф_2n = π/200. The corresponding frequency band delay can be calculated according to the formula T_n = r₂ /c – r₁ /c + (∆Ф_n )/ω_n . It can be seen that the required frequency response curve can be obtained by changing the delay according to the requirement.

综上所述，在阅读本详细公开内容之后，本领域技术人员可以明白，前述详细公开内容可以仅以示例的方式呈现，并且可以不是限制性的。尽管这里没有明确说明，本领域技术人员可以理解本申请意图囊括对实施例的各种合理改变，改进和修改。这些改变，改进和修改旨在由本公开提出，并且在本公开的示例性实施例的精神和范围内。To sum up, after reading this detailed disclosure, those skilled in the art can understand that the foregoing detailed disclosure may be presented by way of example only, and may not be restrictive. Although not explicitly stated herein, those skilled in the art will understand that this application is intended to cover various reasonable changes, improvements and modifications to the embodiments. Such alterations, improvements and modifications are intended to be suggested by this disclosure and are within the spirit and scope of the exemplary embodiments of this disclosure.

这里使用的术语仅用于描述特定示例实施例的目的，而不是限制性的。比如，除非上下文另有明确说明，这里所使用的，单数形式“一”、“一个”、“所述”和“该”也可以包括复数形式。当在本说明书中使用时，术语“包括”、“包含”和/或“含有”意思是指所关联的整数，步骤、操作、元素和/或组件存在，但不排除一个或多个其他特征、整数、步骤、操作、元素、组件和/或组的存在或在该系统/方法中可以添加其他特征、整数、步骤、操作、元素、组件和/或组。当在本说明书中使用时，术语“A在B上”意思可以是A直接与B相邻（之上或者之下），也可以指A与B间接相邻（即A与B之间还隔了一些物质）；术语“A在B内”意思可以是A全部在B里面，也可以是A部分的在B里面。The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. For example, as used herein, the singular forms "a", "an", "said" and "the" may also include the plural forms unless the context clearly dictates otherwise. When used in this specification, the terms "comprising", "comprising" and/or "containing" mean that the associated integer, step, operation, element and/or component is present, but does not exclude one or more other features , integers, steps, operations, elements, components and/or groups exist or other features, integers, steps, operations, elements, components and/or groups may be added in the system/method. When used in this specification, the term "A on B" can mean that A is directly adjacent to B (above or below), or it can mean that A is indirectly adjacent to B (that is, there is an interval between A and B). some substance); the term "A in B" can mean that all of A is in B, or that part of A is in B.

此外，本申请中的某些术语已被用于描述本公开的实施例。例如，“一个实施例”，“实施例”和/或“一些实施例”意味着结合该实施例描述的特定特征，结构或特性可以包括在本公开的至少一个实施例中。因此，可以强调并且应当理解，在本说明书的各个部分中对“实施例”或“一个实施例”或“替代实施例”的两个或更多个引用不一定都指代相同的实施例。此外，特定特征，结构或特性可以在本公开的一个或多个实施例中适当地组合。Additionally, certain terms in this application have been used to describe embodiments of the present disclosure. For example, "one embodiment," "an embodiment" and/or "some embodiments" means that a particular feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of the present disclosure. Thus, it is emphasized and should be understood that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various parts of this specification are not necessarily all referring to the same embodiment. Also, specific features, structures or characteristics may be properly combined in one or more embodiments of the present disclosure.

应当理解，在本公开的实施例的前述描述中，为了帮助理解一个特征，出于简化本公开的目的，本申请有时将各种特征组合在单个实施例、附图或其描述中。或者，本申请又是将各种特征分散在多个本发明的实施例中。然而，这并不是说这些特征的组合是必须的，本领域技术人员在阅读本申请的时候完全有可能将其中一部分特征提取出来作为单独的实施例来理解。也就是说，本申请中的实施例也可以理解为多个次级实施例的整合。而每个次级实施例的内容在于少于单个前述公开实施例的所有特征的时候也是成立的。It should be understood that in the foregoing description of the embodiments of the present disclosure, in order to help understand one feature, the present application sometimes combines various features in a single embodiment, drawing or description thereof for the purpose of simplifying the present disclosure. Alternatively, the present application spreads various features across multiple embodiments of the invention. However, this does not mean that the combination of these features is necessary, and it is entirely possible for those skilled in the art to extract some of the features as a separate embodiment when reading the application. That is to say, the embodiments in this application can also be understood as the integration of multiple sub-embodiments. It is also true that each sub-embodiment lies in less than all features of a single preceding disclosed embodiment.

在一些实施方案中，表达用于描述和要求保护本申请的某些实施方案的数量或性质的数字应理解为在某些情况下通过术语“约”，“近似”或“基本上”修饰。例如，除非另有说明，否则“约”，“近似”或“基本上”可表示其描述的值的±20％变化。因此，在一些实施方案中，书面描述和所附权利要求书中列出的数值参数是近似值，其可以根据特定实施方案试图获得的所需性质而变化。在一些实施方案中，数值参数应根据报告的有效数字的数量并通过应用普通的舍入技术来解释。尽管阐述本申请的一些实施方案列出了广泛范围的数值范围和参数是近似值，但具体实施例中都列出了尽可能精确的数值。In some embodiments, numbers expressing quantities or properties used to describe and claim certain embodiments of the present application are to be understood as modified in some instances by the term "about", "approximately" or "substantially". For example, "about," "approximately," or "substantially" may mean a ±20% variation of the value it describes, unless otherwise indicated. Accordingly, in some embodiments, the numerical parameters set forth in the written description and appended claims are approximations that may vary depending upon the desired properties sought to be obtained by particular embodiments. In some embodiments, numerical parameters should be construed in light of the number of reported significant digits and by applying ordinary rounding techniques. Notwithstanding that the numerical ranges setting forth the broad ranges and parameters setting forth some embodiments of the application are approximations, the numerical ranges set forth in the specific examples are reported as precisely as possible.

本文引用的每个专利，专利申请，专利申请的出版物和其他材料，例如文章，书籍，说明书，出版物，文件，物品等，可以通过引用结合于此。用于所有目的的全部内容，除了与其相关的任何起诉文件历史，可能与本文件不一致或相冲突的任何相同的，或者任何可能对权利要求的最宽范围具有限制性影响的任何相同的起诉文件历史。现在或以后与本文件相关联。举例来说，如果在与任何所包含的材料相关联的术语的描述、定义和/或使用与本文档相关的术语的描述、定义和/或使用之间存在任何不一致或冲突时，以本文件中的术语为准。Every patent, patent application, publication of a patent application, and other material, such as articles, books, specifications, publications, documents, articles, etc., cited herein is hereby incorporated by reference. The entire content for all purposes, except for any history of prosecution documents related thereto, any identical prosecution documents that may be inconsistent with or conflict with this document, or any identical prosecution documents that may have a restrictive effect on the broadest scope of the claims history. now or in the future to be associated with this document. By way of example, in the event of any inconsistency or conflict between the description, definition and/or use of terms associated with any contained material and the description, definition and/or use of terms in relation to this document, this document takes The terms in

最后，应理解，本文公开的申请的实施方案是对本申请的实施方案的原理的说明。其他修改后的实施例也在本申请的范围内。因此，本申请披露的实施例仅仅作为示例而非限制。本领域技术人员可以根据本申请中的实施例采取替代配置来实现本申请中的发明。因此，本申请的实施例不限于申请中被精确地描述过的哪些实施例。Finally, it is to be understood that the embodiments of the application disclosed herein are illustrative of the principles of the embodiments of the application. Other modified embodiments are also within the scope of this application. Therefore, the embodiments disclosed in this application are only examples and not limitations. Those skilled in the art may adopt alternative configurations according to the embodiments in this application to implement the invention in this application. Accordingly, the embodiments of the present application are not limited to which embodiments are precisely described in the application.

Claims (19)

Translated fromChinese

1.一种用于传声功能的头戴式的电子设备，其特征在于，包括：1. A head-mounted electronic device for sound transmission function, characterized in that, comprising:基座；base;第一声波传感器，装配在所述基座上，接收声波并基于所述声波输出第一信号；a first acoustic wave sensor, mounted on the base, receiving an acoustic wave and outputting a first signal based on the acoustic wave;第二声波传感器，装配在所述基座上，接收所述声波并基于所述声波输出第二信号，所述第二声波传感器包括幅值调节电路；和a second acoustic wave sensor, mounted on the base, receiving the sound wave and outputting a second signal based on the sound wave, the second acoustic wave sensor including an amplitude adjustment circuit; and信号处理电路，同所述第一声波传感器和所述第二声波传感器连接，并基于所述第一信号和所述第二信号生成输出信号，a signal processing circuit connected to the first acoustic wave sensor and the second acoustic wave sensor and generating an output signal based on the first signal and the second signal,其中，当所述电子设备被佩戴者佩戴时，所述第一声波传感器与发出佩戴者语音信号的目标近场声源的位置相距第一距离，所述第二声波传感器与所述目标近场声源的位置相距第二距离，所述幅值调节电路被配置为根据所述第一距离和所述第二距离的比值对所述第二声波传感器输出的初始第二信号进行幅值调节以生成所述第二信号，以便所述电子设备对所述目标近场声源发出的目标近场声波的目标近场灵敏度显著低于对远场声源发出的远场声波的远场灵敏度，使得所述输出信号中对应于所述目标近场声波的信号强度显著低于对应于所述远场声波的信号强度，以抑制所述佩戴者发出的所述语音信号，Wherein, when the electronic device is worn by the wearer, the first acoustic wave sensor is at a first distance from the target near-field sound source that emits the wearer's voice signal, and the second acoustic wave sensor is close to the target. The position of the field sound source is separated by a second distance, and the amplitude adjustment circuit is configured to adjust the amplitude of the initial second signal output by the second acoustic wave sensor according to the ratio of the first distance to the second distance to generate the second signal so that the target near-field sensitivity of the electronic device to the target near-field sound waves emitted by the target near-field sound source is significantly lower than the far-field sensitivity to the far-field sound waves emitted by the far-field sound source, making the signal strength corresponding to the target near-field sound wave in the output signal significantly lower than the signal strength corresponding to the far-field sound wave, so as to suppress the voice signal emitted by the wearer,所述目标近场声源距离所述第一声波传感器的第二目标距离小于所述远场声源距离所述第一声波传感器的第一目标距离。A second target distance between the target near-field sound source and the first acoustic wave sensor is smaller than a first target distance between the far-field sound source and the first acoustic wave sensor.2.根据权利要求1所述的电子设备，其特征在于，所述近场灵敏度显著低于所述远场灵敏度是指所述近场目标灵敏度同所述远场灵敏度的比值小于预定的值。2 . The electronic device according to claim 1 , wherein the near-field sensitivity is significantly lower than the far-field sensitivity means that a ratio of the near-field target sensitivity to the far-field sensitivity is smaller than a predetermined value.3.根据权利要求1所述电子设备，其特征在于，3. The electronic device according to claim 1, characterized in that,所述第一声波传感器包括第一麦克风；The first acoustic wave sensor includes a first microphone;所述第二声波传感器包括第二麦克风；以及the second acoustic wave sensor includes a second microphone; and所述第一麦克风到所述第二麦克风的距离为预先设定的距离。The distance from the first microphone to the second microphone is a preset distance.4. 根据权利要求3所述的电子设备，其特征在于，4. electronic equipment according to claim 3, is characterized in that,所述目标近场声源的位置使得所述目标近场声波在所述第一麦克风和所述第二麦克风之间的声压幅值梯度的绝对值大于第一声压阈值；以及The position of the target near-field sound source is such that the absolute value of the sound pressure amplitude gradient of the target near-field sound wave between the first microphone and the second microphone is greater than a first sound pressure threshold; and所述目标远场声源的位置使得所述目标远场声波在所述第一麦克风和所述第二麦克风之间的声压幅值梯度的绝对值小于第二声压阈值。The position of the target far-field sound source is such that the absolute value of the sound pressure amplitude gradient of the target far-field sound wave between the first microphone and the second microphone is smaller than a second sound pressure threshold.5.根据权利要求1所述的电子设备，其特征在于，其中：5. The electronic device according to claim 1, wherein:所述目标近场声源为所述电子设备的佩戴者的发声部位。The target near-field sound source is a sound emitting part of a wearer of the electronic device.6.根据权利要求1所述的电子设备，其特征在于，所述第一声波传感器的灵敏度为第一灵敏度，所述第二声波传感器的灵敏度为第二灵敏度，其中，所述第一灵敏度和第二灵敏度根据所述第一距离与所述第二距离的比值确定。6. The electronic device according to claim 1, wherein the sensitivity of the first acoustic wave sensor is a first sensitivity, and the sensitivity of the second acoustic wave sensor is a second sensitivity, wherein the first sensitivity and a second sensitivity determined according to a ratio of the first distance to the second distance.7.根据权利要求1所述的电子设备，其特征在于，所述第一声波传感器的灵敏度为第一灵敏度，所述第二声波传感器的灵敏度为第二灵敏度，其中，所述第一灵敏度和所述第二灵敏度相同。7. The electronic device according to claim 1, wherein the sensitivity of the first acoustic wave sensor is a first sensitivity, and the sensitivity of the second acoustic wave sensor is a second sensitivity, wherein the first sensitivity Same as the second sensitivity.8.根据权利要求1所述的电子设备，其特征在于，所述电子设备包括适配按钮，所述适配按钮被配置为在被按下时启动所述幅值调节电路。8. The electronic device according to claim 1, wherein the electronic device comprises an adaptation button configured to activate the amplitude adjustment circuit when pressed.9.根据权利要求1所述的电子设备，其特征在于，当所述电子设备运行时，所述幅值调节电路的幅值调节幅度根据所述第一距离和所述第二距离的动态变化实时改变。9. The electronic device according to claim 1, characterized in that, when the electronic device is running, the amplitude adjustment range of the amplitude adjustment circuit changes dynamically according to the first distance and the second distance Change in real time.10.根据权利要求1所述的电子设备，其特征在于，所述第一声波传感器包括相位调节电路，所述相位调节电路被配置为根据所述第一距离和所述第二距离的差值对所述第一声波传感器输出的初始第一信号进行相位调节以生成所述第一信号。10. The electronic device according to claim 1, wherein the first acoustic wave sensor comprises a phase adjustment circuit, and the phase adjustment circuit is configured to The value performs phase adjustment on the initial first signal output by the first acoustic wave sensor to generate the first signal.11.根据权利要求1所述电子设备，其特征在于，所述信号处理电路包括差分电路。11. The electronic device according to claim 1, wherein the signal processing circuit comprises a differential circuit.12.根据权利要求11所述的电子设备，其特征在于，进一步包括信号放大电路，将所述差分电路的输出信号放大后生成所述电子设备的输出信号。12. The electronic device according to claim 11, further comprising a signal amplifying circuit, which amplifies the output signal of the differential circuit to generate the output signal of the electronic device.13.根据权利要求1所述的电子设备，其特征在于，所述第二声波传感器同所述第一声波传感器之间的距离可调。13. The electronic device according to claim 1, wherein the distance between the second acoustic wave sensor and the first acoustic wave sensor is adjustable.14.根据权利要求13所述的电子设备，其特征在于，所述第一距离小于所述第二距离，14. The electronic device according to claim 13, wherein the first distance is smaller than the second distance,当所述第一距离固定，所述第二声波传感器同所述第一声波传感器之间的距离变化时，所述第二距离变化，进而，所述幅值调节发生变化。When the first distance is fixed and the distance between the second acoustic wave sensor and the first acoustic wave sensor changes, the second distance changes, and then the amplitude adjustment changes.15.根据权利要求1所述的电子设备，其特征在于，所述电子设备包括至少一个助听器，所述至少一个助听器包括至少一个耳塞，至少所述第一声波传感器的一部分和至少所述第二声波传感器的一部分位于所述至少一个耳塞中。15. The electronic device of claim 1, wherein the electronic device comprises at least one hearing aid, the at least one hearing aid comprises at least one earplug, at least a portion of the first acoustic wave sensor and at least the first acoustic wave sensor A portion of two acoustic sensors are located in the at least one earbud.16.根据权利要求15所述的电子设备，其特征在于，所述至少一个耳塞中的每一个都包括至少一个信号转换器，所述至少一个信号转换器中的每一个都被配置为从所述信号处理电路接收所述输出信号并输出通过空气传播的声音信号。16. The electronic device of claim 15 , wherein each of the at least one earbud includes at least one signal converter, each of the at least one signal converter is configured to receive from the The signal processing circuit receives the output signal and outputs an airborne sound signal.17.根据权利要求15所述的电子设备，其特征在于，所述至少一个耳塞中的每一个都包括至少一个信号转换器，所述至少一个信号转换器中的每一个都被配置为从所述信号处理电路接收所述输出信号并输出通过骨传导的声音信号。17. The electronic device of claim 15, wherein each of the at least one earbud includes at least one signal converter, each of the at least one signal converter is configured to receive from the The signal processing circuit receives the output signal and outputs a sound signal through bone conduction.18.根据权利要求1所述的电子设备，其特征在于，所述电子设备还包括扬声器。18. The electronic device according to claim 1, further comprising a speaker.19.根据权利要求1所述的电子设备，其特征在于，19. The electronic device according to claim 1, wherein:所述第一信号包括n个第一子信号，所述第二信号包括n个第二子信号，其中，第i个第一子信号和第i个第二子信号对应相同的频带，其中，n为大于1的正整数，i为1至n中的任意整数；The first signal includes n first sub-signals, and the second signal includes n second sub-signals, wherein the i-th first sub-signal and the i-th second sub-signal correspond to the same frequency band, wherein, n is a positive integer greater than 1, and i is any integer from 1 to n;所述信号处理电路对每对序号相同的第一子信号和第二子信号进行处理后再合成为所述输出信号。The signal processing circuit processes each pair of the first sub-signal and the second sub-signal with the same serial number and then synthesizes it into the output signal.

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