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CN115331688A - Audio noise reduction method, electronic device and storage medium - Google Patents

Audio noise reduction method, electronic device and storage medium
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CN115331688A
CN115331688ACN202210957446.8ACN202210957446ACN115331688ACN 115331688 ACN115331688 ACN 115331688ACN 202210957446 ACN202210957446 ACN 202210957446ACN 115331688 ACN115331688 ACN 115331688A
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audio
microphone
sound
noise reduction
processor
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刘贝贝
王森
王波
姚建春
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Sipic Technology Co Ltd
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Abstract

Translated fromChinese

本发明公开一种音频降噪方法、电子设备和存储介质,所述方法用于会议机,其中方法包括:响应于通过麦克风拾取第一音频,对所述第一音频进行处理,其中,所述麦克风设置于所述会议机的顶部,所述麦克风朝上;将所述处理后的第一音频传送至所述会议机的CPU处理模块进行处理,并将所述CPU处理模块处理后的第一音频发送至与所述会议机关联的智能设备。本发明实施例通过将麦克风设置在会议机的顶部,并将麦克风拾取的音频信息进行计算处理,同时通过算法可以达到更好的降噪效果,使得会议机在通话过程中提高通话质量。

Figure 202210957446

The present invention discloses an audio noise reduction method, an electronic device and a storage medium. The method is used in a conference machine, wherein the method comprises: in response to picking up the first audio through a microphone, processing the first audio, wherein the The microphone is arranged on the top of the conference machine, and the microphone faces upward; the processed first audio is transmitted to the CPU processing module of the conference machine for processing, and the first audio frequency processed by the CPU processing module is processed. Audio is sent to a smart device associated with the conference machine. In the embodiment of the present invention, the microphone is arranged on the top of the conference machine, and the audio information picked up by the microphone is calculated and processed, and at the same time, the algorithm can achieve better noise reduction effect, so that the conference machine can improve the call quality during the call.

Figure 202210957446

Description

Translated fromChinese
音频降噪方法及电子设备和存储介质Audio noise reduction method, electronic device and storage medium

技术领域technical field

本发明属于声音降噪技术领域,尤其涉及一种音频降噪方法及电子设备和存储介质。The invention belongs to the technical field of sound noise reduction, and in particular relates to an audio noise reduction method, electronic equipment and a storage medium.

背景技术Background technique

目前市场上类似的产品有会议麦克风风,会议宝,大屏幕视频会议机,会议软件如腾讯会议,钉钉,Skype等,相关的会议设备,可建立与别的视频终端设备使用,无延迟时间,零距离沟通交流,即便置身外地,也可以随时添加会议,会议机内嵌音响,产生立体式、圆润的声效,可及时开展会议沟通交流、媒体播放等功能。At present, similar products on the market include conference microphones, conference treasure, large-screen video conference machines, conference software such as Tencent Conference, DingTalk, Skype, etc. Related conference equipment can be used with other video terminal equipment without delay , Zero-distance communication, even if you are in a foreign place, you can add a meeting at any time. The built-in audio of the conference machine produces a three-dimensional, round sound effect, and can carry out functions such as meeting communication and media playback in a timely manner.

常用的会议机一般包括外围通信接口模块,DSP处理器模块,拾音模块,CPU处理器模块,扬声器单元等;Commonly used conference machines generally include peripheral communication interface modules, DSP processor modules, pickup modules, CPU processor modules, speaker units, etc.;

目前常用的会议机通话过程中容易出现啸叫现象,且会议机接收到其他会议机的音频信号很多都是不清晰,使用起来效果较差;单纯会议软件无法解决会议拾音距离和降噪效果差的问题。At present, the commonly used conference machines are prone to howling during calls, and many audio signals received by the conference machine from other conference machines are not clear, and the effect of use is poor; pure conference software cannot solve the conference sound pickup distance and noise reduction effect bad question.

发明人发现:上述技术提供的能力是单一的,在使用时无法给用户带来更好的实际体验感,其中会议机的拾音模块麦克风的布局搭配DSP的算法,扬声器单元声音大小都会影响降噪效果,声学结构都会影响到降噪效果及用户体验效果。The inventors found that: the above-mentioned technology provides a single capability, and cannot bring users a better sense of practical experience during use. Among them, the layout of the pickup module microphone of the conference machine is matched with the DSP algorithm, and the sound level of the speaker unit will affect the sound reduction. The noise effect and the acoustic structure will affect the noise reduction effect and user experience effect.

发明内容Contents of the invention

本发明实施例旨在至少解决上述技术问题之一。Embodiments of the present invention aim to solve at least one of the above technical problems.

第一方面,本发明实施例提供一种音频降噪方法,用于会议机,包括:响应于通过麦克风拾取第一音频,对所述第一音频进行处理,其中,所述麦克风设置于所述会议机的顶部,所述麦克风朝上;将所述处理后的第一音频传送至所述会议机的CPU处理模块进行处理,并将所述CPU处理模块处理后的第一音频发送至与所述会议机关联的智能设备。In the first aspect, an embodiment of the present invention provides an audio noise reduction method for a conference machine, including: processing the first audio in response to picking up the first audio through a microphone, wherein the microphone is set on the The top of the conference machine, the microphone is facing up; the processed first audio is sent to the CPU processing module of the conference machine for processing, and the first audio processed by the CPU processing module is sent to the The smart device associated with the above-mentioned conference machine.

第二方面,本发明实施例提供一种电子设备,其包括:至少一个处理器,以及与所述至少一个处理器通信连接的存储器,其中,所述存储器存储有可被所述至少一个处理器执行的指令,所述指令被所述至少一个处理器执行,以使所述至少一个处理器能够执行本发明上述任一项音频降噪方法。In a second aspect, an embodiment of the present invention provides an electronic device, which includes: at least one processor, and a memory connected to the at least one processor in communication, wherein the memory stores information that can be used by the at least one processor Executable instructions, the instructions are executed by the at least one processor, so that the at least one processor can execute any one of the audio noise reduction methods described above in the present invention.

第三方面,本发明实施例提供一种存储介质,所述存储介质中存储有一个或多个包括执行指令的程序,所述执行指令能够被电子设备(包括但不限于计算机,服务器,或者网络设备等)读取并执行,以用于执行本发明上述任一项音频降噪方法。In the third aspect, the embodiment of the present invention provides a storage medium, and one or more programs including execution instructions are stored in the storage medium, and the execution instructions can be read by electronic devices (including but not limited to computers, servers, or network equipment, etc.) to read and execute, so as to implement any one of the above-mentioned audio noise reduction methods of the present invention.

第四方面,本发明实施例还提供一种计算机程序产品,所述计算机程序产品包括存储在存储介质上的计算机程序,所述计算机程序包括程序指令,当所述程序指令被计算机执行时,使所述计算机执行上述任一项音频降噪方法。In a fourth aspect, an embodiment of the present invention further provides a computer program product, the computer program product includes a computer program stored on a storage medium, the computer program includes program instructions, and when the program instructions are executed by a computer, the The computer executes any one of the audio noise reduction methods described above.

本发明实施例通过将麦克风设置在会议机的顶部,并将麦克风拾取的音频信息进行计算处理,同时通过算法可以达到更好的降噪效果,使得会议机在通话过程中提高通话质量。In the embodiment of the present invention, the microphone is arranged on the top of the conference machine, and the audio information picked up by the microphone is calculated and processed, and at the same time, a better noise reduction effect can be achieved through an algorithm, so that the conference machine can improve the call quality during the call.

附图说明Description of drawings

为了更清楚地说明本发明实施例的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

图1为本发明的音频降噪方法的一实施例的流程图;Fig. 1 is a flowchart of an embodiment of the audio noise reduction method of the present invention;

图2为本发明的音频降噪方法的又一实施例的流程图;Fig. 2 is the flowchart of another embodiment of the audio noise reduction method of the present invention;

图3为本发明提供的音频降噪方法的模块结构示意图;Fig. 3 is a schematic diagram of the module structure of the audio noise reduction method provided by the present invention;

图4为本发明提供的音频降噪方法用于会议机上的麦克风布局的结构示意图;FIG. 4 is a schematic structural diagram of the audio noise reduction method provided by the present invention used for the microphone layout on the conference machine;

图5为本发明一实施例提供的一种音频降噪方法的过程流程图;FIG. 5 is a process flow diagram of an audio noise reduction method provided by an embodiment of the present invention;

图6为本发明的电子设备的一实施例的结构示意图。FIG. 6 is a schematic structural diagram of an embodiment of the electronic device of the present invention.

具体实施方式Detailed ways

为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

本发明可以在由计算机执行的计算机可执行指令的一般上下文中描述,例如程序模块。一般地,程序模块包括执行特定任务或实现特定抽象数据类型的例程、程序、对象、元件、数据结构等等。也可以在分布式计算环境中实践本发明,在这些分布式计算环境中,由通过通信网络而被连接的远程处理设备来执行任务。在分布式计算环境中,程序模块可以位于包括存储设备在内的本地和远程计算机存储介质中。The invention may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The invention may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including storage devices.

在本发明中,“模块”、“装置”、“系统”等指应用于计算机的相关实体,如硬件、硬件和软件的组合、软件或执行中的软件等。详细地说,例如,元件可以、但不限于是运行于处理器的过程、处理器、对象、可执行元件、执行线程、程序和/或计算机。还有,运行于服务器上的应用程序或脚本程序、服务器都可以是元件。一个或多个元件可在执行的过程和/或线程中,并且元件可以在一台计算机上本地化和/或分布在两台或多台计算机之间,并可以由各种计算机可读介质运行。元件还可以根据具有一个或多个数据包的信号,例如,来自一个与本地系统、分布式系统中另一元件交互的,和/或在因特网的网络通过信号与其它系统交互的数据的信号通过本地和/或远程过程来进行通信。In the present invention, "module", "device", "system" and the like refer to related entities applied to computers, such as hardware, a combination of hardware and software, software or software in execution, and the like. In particular, for example, an element may be, but is not limited to being, a process running on a processor, a processor, an object, an executable element, a thread of execution, a program and/or a computer. Also, an application program or a script program running on a server, and the server may both be components. One or more elements can be within a process and/or thread of execution and an element can be localized on one computer and/or distributed between two or more computers and executed by various computer-readable media . Components may also communicate via a signal having one or more packets of data, for example, from one interacting with a local system, another component in a distributed system, and/or interacting with other systems via a network over the Internet. local and/or remote procedures to communicate.

最后,还需要说明的是,在本文中,诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来,而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且,术语“包括”、“包含”,不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下,由语句“包括……”限定的要素,并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。Finally, it should also be noted that in this text, relational terms such as first and second etc. are only used to distinguish one entity or operation from another, and do not necessarily require or imply that these entities or operations, any such actual relationship or order exists. Moreover, the terms "comprising" and "comprising" not only include those elements, but also include other elements not explicitly listed, or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the statement "comprising..." does not exclude the presence of additional same elements in the process, method, article or device comprising said element.

本发明实施例提供一种音频降噪方法,用于会议机,该方法可以应用于电子设备。电子设备可以是电脑、服务器或者其他电子产品等,本发明对此不作限定。An embodiment of the present invention provides an audio noise reduction method for a conference machine, and the method can be applied to electronic equipment. The electronic device may be a computer, a server, or other electronic products, which is not limited in the present invention.

请参考图1,其示出了本发明一实施例提供的一种音频降噪方法,用于会议机。Please refer to FIG. 1 , which shows an audio noise reduction method provided by an embodiment of the present invention, which is used in a conference machine.

如图1所示,在步骤101中,响应于通过麦克风拾取第一音频,对所述第一音频进行处理,其中,所述麦克风设置于所述会议机的顶部,所述麦克风朝上;As shown in Figure 1, instep 101, in response to picking up the first audio through a microphone, the first audio is processed, wherein the microphone is arranged on the top of the conference machine, and the microphone is facing upward;

在步骤102中,将所述处理后的第一音频传送至所述会议机的CPU处理模块进行处理,并将所述CPU处理模块处理后的第一音频发送至与所述会议机关联的智能设备。Instep 102, the processed first audio is sent to the CPU processing module of the conference machine for processing, and the first audio processed by the CPU processing module is sent to the smart phone associated with the conference machine equipment.

在本实施例中,对于步骤101,会议机上设置有麦克风设备,通过麦克风设备来拾取外部的第一音频信息,将拾取到的第一音频信息进行计算处理,会议机设有拾音模块,其中,拾音模块包括麦克风设备,麦克风设备由多组麦克风组成,所有麦克风都设置在会议机的顶部,所有麦克风都朝上设置,拾音模块还包括信号数字化处理DSP(Digital SignalProcessing)处理单元,DSP处理单元用于对拾取到的第一音频信息进行计算处理。In this embodiment, forstep 101, a microphone device is provided on the conference machine, and the external first audio information is picked up through the microphone device, and the first audio information picked up is calculated and processed, and the conference machine is provided with a sound pickup module, wherein , the pickup module includes a microphone device, the microphone device is composed of multiple groups of microphones, all microphones are set on the top of the conference machine, and all microphones are set up, the pickup module also includes a signal digital processing DSP (Digital Signal Processing) processing unit, DSP The processing unit is used for computing and processing the picked-up first audio information.

之后,对于步骤102,DSP处理单元对第一音频信息进行计算处理,并将处理后的第一音频信息发送至会议机内部的CPU处理模块再进行处理并得到CPU处理后的第一音频,将CPU处理后的第一音频发送至连接本会议机的智能设备,例如,服务器或者电脑等智能设备,其中,连接方式可以是有线连接或者无线连接,WIFI或者蓝牙进行连接。After that, forstep 102, the DSP processing unit calculates and processes the first audio information, and sends the processed first audio information to the CPU processing module inside the conference machine for further processing and obtains the first audio processed by the CPU. The first audio processed by the CPU is sent to a smart device connected to the conference machine, such as a server or a computer and other smart devices, wherein the connection method can be a wired connection or a wireless connection, WIFI or Bluetooth connection.

本申请实施例的方法通过将麦克风设置在会议机的顶部,并将麦克风拾取的音频信息进行计算处理,同时通过算法可以达到更好的降噪效果,使得会议机在通话过程中提高通话质量。The method of the embodiment of the present application sets the microphone on the top of the conference machine, calculates and processes the audio information picked up by the microphone, and at the same time achieves a better noise reduction effect through the algorithm, so that the conference machine can improve the call quality during the call.

在一些可选的实施例中,接收来自智能设备的第二音频信息,通过会议机上的扬声器对接收到的智能设备的第二音频信息进行播放,其中,扬声器不与麦克风设备设置在一个面,扬声器可以设置在会议机的侧面或者底部,相当于扬声器与麦克风设备形成90°或180°放置。In some optional embodiments, the second audio information from the smart device is received, and the received second audio information of the smart device is played through a speaker on the conference machine, wherein the speaker is not arranged on the same side as the microphone device, The speaker can be set on the side or bottom of the conference machine, which is equivalent to a 90° or 180° placement of the speaker and the microphone device.

本申请实施例的方法通过将扬声器与麦克风不设置在同一个面上,可以有效避免扬声器发出声音时对拾音降噪造成影响,从而提高通话降噪效果。In the method of the embodiment of the present application, by disposing the speaker and the microphone not on the same surface, it can effectively avoid the influence of the speaker on sound pickup and noise reduction, thereby improving the noise reduction effect of the call.

请参考图2,其示出了本发明一实施例提供的另一种音频降噪方法。该流程图主要是对流程图图1中步骤101中“对所述第一音频进行处理”进一步限定的步骤的流程图。Please refer to FIG. 2 , which shows another audio noise reduction method provided by an embodiment of the present invention. The flow chart is mainly a flow chart of the steps further defined instep 101 in the flow chart of FIG. 1 "processing the first audio".

如图2所示,在步骤201中,将所述音频送入DSP处理单元进行处理,区分人声音频和环境声音频;As shown in Figure 2, instep 201, the audio is sent to the DSP processing unit for processing to distinguish human voice audio and ambient sound audio;

在步骤202中,对所述人声音频进行声音增强,对所述环境声音频进行声音定位以及对所述环境声音频进行环境声降噪。Instep 202, sound enhancement is performed on the human voice audio, sound localization is performed on the environmental sound audio, and environmental sound noise reduction is performed on the environmental sound audio.

在本实施例中,对于步骤201,将麦克风设备拾取的音频信息送入DSP处理单元进行处理,其中处理方法包括将麦克风设备拾取的音频信息进行人声和环境声区分,分别形成人声音频和环境声音频;之后,对于步骤202,将区分后的人声音频进行声音增强,多组麦克风拾取的音频信息有时间差且声波相位不同,从而对声音的方向进行定位,确认该声源的位置方向,并对区分后的环境声音频进行最大限度去除,提高剩下的人声音频清晰度和准确性最大化。In this embodiment, forstep 201, the audio information picked up by the microphone device is sent to the DSP processing unit for processing, wherein the processing method includes distinguishing the audio information picked up by the microphone device from human voice and environmental sound, and forming human voice audio and Ambient sound audio; After that, forstep 202, the human voice audio after the distinction is sound enhanced, the audio information picked up by multiple groups of microphones has a time difference and the sound wave phase is different, so as to locate the direction of the sound and confirm the position and direction of the sound source , and remove the differentiated ambient sound audio to the maximum extent, improve the clarity and accuracy of the remaining human voice audio to the maximum extent.

本申请实施例的方法通过对麦克风设备拾取的音频信息进行人声音频和环境声音频区分,对人声音频进行增强同时消除环境声音频,可以提高剩下的人声音频清晰度,从而可以实现对麦克风设备拾取的音频进行降噪。In the method of the embodiment of the present application, by distinguishing the human voice audio from the environmental sound audio on the audio information picked up by the microphone device, the human voice audio is enhanced while the environmental sound audio is eliminated, and the clarity of the remaining human voice audio can be improved, thereby realizing Noise reduction is performed on the audio picked up by the microphone device.

在一些可选的实施例中,对人声音频进行增强包括对DSP处理单元处理后的人声音频进行自动增益调节,对于声音较小的人声音频进行增强处理,同时弱化环境噪声,可以达到清晰识别人声的效果,保证人声音频的清晰性,DSP处理单元根据麦克风拾取的音频时间差进行声波定位,确认其声源的准确位置。In some optional embodiments, enhancing the human voice audio includes performing automatic gain adjustment on the human voice audio processed by the DSP processing unit, and performing enhancement processing on the human voice audio with a low voice, and at the same time weakening the environmental noise, which can achieve The effect of clearly recognizing the human voice ensures the clarity of the human voice audio. The DSP processing unit performs sound wave positioning according to the audio time difference picked up by the microphone to confirm the exact position of the sound source.

在一些可选的实施例中,DSP处理单元还用于对麦克风设备拾取的音频信息进行人声音频和环境声音频区分和分析,并去除掉环境声音频达到降噪效果。In some optional embodiments, the DSP processing unit is also used to distinguish and analyze the audio information picked up by the microphone device from human voice audio and environmental sound audio, and remove the environmental sound audio to achieve a noise reduction effect.

在一些可选的实施例中,麦克风设备由4个麦克风组成麦克风阵列,4个麦克风分别设置在4个不同的方向,可以同时拾取不同方向的音频;会议机连接的智能设备为能够与该会议机进行通信连接的电脑设备WIFI设备以及蓝牙设备。In some optional embodiments, the microphone device consists of 4 microphones to form a microphone array, and the 4 microphones are respectively arranged in 4 different directions, and can pick up audio from different directions at the same time; Computer equipment WIFI equipment and Bluetooth equipment for communication connection with the computer.

请参考图3,其出示了本发明的音频降噪方法的模块结构示意图。Please refer to FIG. 3 , which shows a schematic diagram of the module structure of the audio noise reduction method of the present invention.

如图3所示,拾音模块:包含拾音DSP处理单元和麦克风拾音部分,DSP处理单元将麦克风采集的声音和环境音送到DSP处理单元,DSP处理单元对声音进行处理,声音处理包含环境音降噪,声音定位,声音增强等;As shown in Figure 3, the pickup module: includes a pickup DSP processing unit and a microphone pickup part, the DSP processing unit sends the sound collected by the microphone and the ambient sound to the DSP processing unit, and the DSP processing unit processes the sound, and the sound processing includes Environmental sound noise reduction, sound localization, sound enhancement, etc.;

CPU处理模块:拾音模块处理后的音频传给CPU模块,CPU模块将处理后音频传送给上行电脑设备,或WIFI/蓝牙设备,然后和互联网合并进行通信;CPU processing module: The audio processed by the pickup module is transmitted to the CPU module, and the CPU module transmits the processed audio to the upstream computer device, or WIFI/Bluetooth device, and then merges with the Internet for communication;

喇叭:喇叭主要用于播放WIFI/蓝牙设备音频,或远端通话降噪后音频。Speaker: The speaker is mainly used to play WIFI/Bluetooth device audio, or remote call audio after noise reduction.

请参考图4,其出示了本发明的音频降噪方法用于会议机的麦克风布局的结构示意图。Please refer to FIG. 4 , which shows a structural diagram of the audio noise reduction method of the present invention applied to the microphone layout of the conference machine.

如图4所示,目前市场上会议麦克风主要做法是麦克风在侧面,喇叭朝上,或者麦克风朝上,喇叭也朝上,麦克风在侧面,喇叭朝上,有助于扬声器单元得到更高音压和音质,麦克风朝上,则更有利于降噪算法实现,为避免喇叭发出声音对降噪造成影响,本申请将麦克风和扬声器单元成90°或180°放置,放在在同一面喇叭的振动会拾音降噪会有较大影响,从而影响通话降噪效果。As shown in Figure 4, the main practice of conference microphones on the market is that the microphone is on the side and the horn is facing upward, or the microphone is facing upward and the horn is also facing upward, and the microphone is on the side and the horn is facing upward, which helps the speaker unit to obtain higher sound pressure and For sound quality, if the microphone faces upward, it is more conducive to the implementation of the noise reduction algorithm. In order to avoid the impact of the sound from the speaker on the noise reduction, this application places the microphone and the speaker unit at 90° or 180°, and the vibration of the speaker on the same side will Pickup noise reduction will have a greater impact, which will affect the noise reduction effect of the call.

请参考图5,其出示了本发明的音频降噪方法的过程实现流程图。Please refer to FIG. 5 , which shows a flow chart of the implementation process of the audio noise reduction method of the present invention.

如图5所示,在麦克风拾音阶段,会议机采用麦克风朝上设计,有利于算法降噪实现,多个麦克风一般采用环形或者线性排列,喇叭出音采用朝下设计,减少喇叭振动导致结构振动对麦克风拾音的影响,最终影响算法降噪效果实现;As shown in Figure 5, in the stage of microphone pickup, the conference machine adopts the upward design of the microphone, which is conducive to the implementation of algorithmic noise reduction. Generally, multiple microphones are arranged in a ring or linear arrangement, and the speaker is designed downward to reduce the vibration caused by the speaker. The impact of vibration on the sound pickup of the microphone will ultimately affect the realization of the noise reduction effect of the algorithm;

DSP对声音处理主要包含声音定位,降噪,声音增强等,声音定位主要依赖声音到达不同麦克风有时间差,声波相位不一样,从而进行声音方向的定位;DSP's sound processing mainly includes sound positioning, noise reduction, sound enhancement, etc. Sound positioning mainly depends on the time difference between the sound arriving at different microphones, and the sound wave phase is different, so as to locate the sound direction;

降噪主要对人声和环境音声音频谱进行分析,对人声和环境音进行区分,最大限度去掉环境音,最终实现对人声的识别;Noise reduction mainly analyzes the sound spectrum of human voice and environmental sound, distinguishes human voice and environmental sound, removes environmental sound to the maximum extent, and finally realizes the recognition of human voice;

声音增强包含对远距离人声进行自动增益调节和对较小的人声进行增强处理,弱化环境噪声,以达到清晰识别人声的效果。Sound enhancement includes automatic gain adjustment for distant human voices and enhanced processing for small human voices, weakening environmental noise, so as to achieve the effect of clearly recognizing human voices.

需要说明的是,对于前述的各方法实施例,为了简单描述,故将其都表述为一系列的动作合并,但是本领域技术人员应该知悉,本发明并不受所描述的动作顺序的限制,因为依据本发明,某些步骤可以采用其他顺序或者同时进行。其次,本领域技术人员也应该知悉,说明书中所描述的实施例均属于优选实施例,所涉及的动作和模块并不一定是本发明所必须的。在上述实施例中,对各个实施例的描述都各有侧重,某个实施例中没有详述的部分,可以参见其他实施例的相关描述。It should be noted that, for the sake of simple description, all the aforementioned method embodiments are described as a series of combined actions, but those skilled in the art should know that the present invention is not limited by the described action sequence. Because of the present invention, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification belong to preferred embodiments, and the actions and modules involved are not necessarily required by the present invention. In the foregoing embodiments, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to relevant descriptions of other embodiments.

在一些实施例中,本发明实施例提供一种非易失性计算机可读存储介质,所述存储介质中存储有一个或多个包括执行指令的程序,所述执行指令能够被电子设备(包括但不限于计算机,服务器,或者网络设备等)读取并执行,以用于执行本发明上述任一项音频降噪方法。In some embodiments, the embodiments of the present invention provide a non-volatile computer-readable storage medium, and one or more programs including execution instructions are stored in the storage medium, and the execution instructions can be executed by electronic devices (including But not limited to computer, server, or network equipment, etc.) to read and execute, so as to implement any one of the above-mentioned audio noise reduction methods of the present invention.

在一些实施例中,本发明实施例还提供一种计算机程序产品,所述计算机程序产品包括存储在非易失性计算机可读存储介质上的计算机程序,所述计算机程序包括程序指令,当所述程序指令被计算机执行时,使所述计算机执行上述任一项音频降噪方法。In some embodiments, the embodiments of the present invention further provide a computer program product, the computer program product includes a computer program stored on a non-volatile computer-readable storage medium, the computer program includes program instructions, and when the When the above program instructions are executed by a computer, the computer is made to execute any one of the above audio noise reduction methods.

在一些实施例中,本发明实施例还提供一种电子设备,其包括:至少一个处理器,以及与所述至少一个处理器通信连接的存储器,其中,所述存储器存储有可被所述至少一个处理器执行的指令,所述指令被所述至少一个处理器执行,以使所述至少一个处理器能够执行音频降噪方法。In some embodiments, the embodiment of the present invention also provides an electronic device, which includes: at least one processor, and a memory connected to the at least one processor in communication, wherein the memory stores information that can be accessed by the at least one processor. A processor-executable instruction executed by the at least one processor to enable the at least one processor to perform an audio noise reduction method.

图6是本申请另一实施例提供的执行音频降噪方法的电子设备的硬件结构示意图,如图6所示,该设备包括:Fig. 6 is a schematic diagram of the hardware structure of an electronic device implementing an audio noise reduction method provided by another embodiment of the present application. As shown in Fig. 6, the device includes:

一个或多个处理器610以及存储器620,图6中以一个处理器610为例。One ormore processors 610 andmemory 620, oneprocessor 610 is taken as an example in FIG. 6 .

执行音频降噪方法的设备还可以包括:输入装置630和输出装置640。The device for implementing the audio noise reduction method may further include: aninput device 630 and anoutput device 640 .

处理器610、存储器620、输入装置630和输出装置640可以通过总线或者其他方式连接,图6中以通过总线连接为例。Theprocessor 610, thememory 620, theinput device 630, and theoutput device 640 may be connected through a bus or in other ways, and connection through a bus is taken as an example in FIG. 6 .

存储器620作为一种非易失性计算机可读存储介质,可用于存储非易失性软件程序、非易失性计算机可执行程序以及模块,如本申请实施例中的音频降噪方法对应的程序指令/模块。处理器610通过运行存储在存储器620中的非易失性软件程序、指令以及模块,从而执行服务器的各种功能应用以及数据处理,即实现上述方法实施例音频降噪方法。Thememory 620, as a non-volatile computer-readable storage medium, can be used to store non-volatile software programs, non-volatile computer-executable programs and modules, such as the program corresponding to the audio noise reduction method in the embodiment of the present application directive/module. Theprocessor 610 executes various functional applications and data processing of the server by running the non-volatile software programs, instructions and modules stored in thememory 620, that is, implements the audio noise reduction method in the above method embodiment.

存储器620可以包括存储程序区和存储数据区,其中,存储程序区可存储操作系统、至少一个功能所需要的应用程序;存储数据区可存储根据音频降噪设备的使用所创建的数据等。此外,存储器620可以包括高速随机存取存储器,还可以包括非易失性存储器,例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。在一些实施例中,存储器620可选包括相对于处理器610远程设置的存储器,这些远程存储器可以通过网络连接至音频降噪设备。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。Thememory 620 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application program required by at least one function; the data storage area may store data created according to the use of the audio noise reduction device, and the like. In addition, thememory 620 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage devices. In some embodiments, thememory 620 may optionally include memory located remotely relative to theprocessor 610, and these remote memories may be connected to the audio noise reduction device through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

输入装置630可接收输入的数字或字符信息,以及产生与音频降噪设备的用户设置以及功能控制有关的信号。输出装置640可包括显示屏等显示设备。Theinput device 630 can receive input numbers or character information, and generate signals related to user settings and function control of the audio noise reduction device. Theoutput device 640 may include a display device such as a display screen.

所述一个或者多个模块存储在所述存储器620中,当被所述一个或者多个处理器610执行时,执行上述任意方法实施例中的音频降噪方法。The one or more modules are stored in thememory 620, and when executed by the one ormore processors 610, perform the audio noise reduction method in any of the above method embodiments.

上述产品可执行本申请实施例所提供的方法,具备执行方法相应的功能模块和有益效果。未在本实施例中详尽描述的技术细节,可参见本申请实施例所提供的方法。The above-mentioned products can execute the method provided by the embodiment of the present application, and have corresponding functional modules and beneficial effects for executing the method. For technical details not described in detail in this embodiment, refer to the method provided in the embodiment of this application.

本申请实施例的电子设备以多种形式存在,包括但不限于:The electronic equipment of the embodiment of the present application exists in various forms, including but not limited to:

(1)移动通信设备:这类设备的特点是具备移动通信功能,并且以提供话音、数据通信为主要目标。这类终端包括:智能手机、多媒体手机、功能性手机,以及低端手机等。(1) Mobile communication equipment: This type of equipment is characterized by mobile communication functions, and its main goal is to provide voice and data communication. Such terminals include: smart phones, multimedia phones, feature phones, and low-end phones.

(2)超移动个人计算机设备:这类设备属于个人计算机的范畴,有计算和处理功能,一般也具备移动上网特性。这类终端包括:PDA、MID和UMPC设备等。(2) Ultra-mobile personal computer equipment: This type of equipment belongs to the category of personal computers, has computing and processing functions, and generally has the characteristics of mobile Internet access. Such terminals include: PDA, MID and UMPC equipment, etc.

(3)便携式娱乐设备:这类设备可以显示和播放多媒体内容。该类设备包括:音频、视频播放器,掌上游戏机,电子书,以及智能玩具和便携式车载导航设备。(3) Portable entertainment equipment: This type of equipment can display and play multimedia content. Such devices include: audio and video players, handheld game consoles, e-books, as well as smart toys and portable car navigation devices.

(4)其他具有数据交互功能的机载电子装置,例如安装上车辆上的车机装置。(4) Other airborne electronic devices with data interaction functions, such as on-board devices installed on vehicles.

以上所描述的装置实施例仅仅是示意性的,其中所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。The device embodiments described above are only illustrative, and the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in One place, or it can be distributed to multiple network elements. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到各实施方式可借助软件加通用硬件平台的方式来实现,当然也可以通过硬件。基于这样的理解,上述技术方案本质上或者说对相关技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品可以存储在计算机可读存储介质中,如ROM/RAM、磁碟、光盘等,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行各个实施例或者实施例的某些部分所述的方法。Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a general hardware platform, and of course also by hardware. Based on this understanding, the essence of the above technical solutions or the part that contributes to related technologies can be embodied in the form of software products, and the computer software products can be stored in computer-readable storage media, such as ROM/RAM, disk , CD, etc., including several instructions to make a computer device (which may be a personal computer, server, or network device, etc.) execute the methods described in each embodiment or some parts of the embodiments.

最后应说明的是:以上实施例仅用以说明本申请的技术方案,而非对其限制;尽管参照前述实施例对本申请进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims (10)

Translated fromChinese
1.一种音频降噪方法,用于会议机,所述方法包括:1. An audio noise reduction method, used for a conference machine, said method comprising:响应于通过麦克风拾取第一音频,对所述第一音频进行处理,其中,所述麦克风设置于所述会议机的顶部,所述麦克风朝上;processing the first audio in response to picking up the first audio through a microphone, wherein the microphone is arranged on the top of the conference machine with the microphone facing upward;将所述处理后的第一音频传送至所述会议机的CPU处理模块进行处理,并将所述CPU处理模块处理后的第一音频发送至与所述会议机关联的智能设备。The processed first audio is sent to the CPU processing module of the conference machine for processing, and the first audio processed by the CPU processing module is sent to the smart device associated with the conference machine.2.根据权利要求1所述的方法,其中,所述并将所述CPU处理模块处理后的音频发送至智能设备包括:2. The method according to claim 1, wherein, sending the audio processed by the CPU processing module to the smart device comprises:响应于接收所述智能设备的第二音频,并通过扬声器对所述第二音频进行播放,其中,所述麦克风与所述扬声器不设置在一个面。In response to receiving the second audio from the smart device, the second audio is played through a speaker, wherein the microphone and the speaker are not arranged on the same plane.3.根据权利要求1所述的方法,其中,所述对所述第一音频进行处理包括:3. The method according to claim 1, wherein said processing said first audio comprises:将所述音频送入DSP处理单元进行处理,区分人声音频和环境声音频;The audio is sent to the DSP processing unit for processing to distinguish human voice audio and ambient sound audio;对所述人声音频进行声音增强,对所述环境声音频进行声音定位以及对所述环境声音频进行环境声降噪。Sound enhancement is performed on the human voice audio, sound localization is performed on the environmental sound audio, and environmental sound noise reduction is performed on the environmental sound audio.4.根据权利要求3所述的方法,其中,所述人声音频进行声音增强包括:4. The method according to claim 3, wherein, performing sound enhancement on the human voice audio comprises:对所述人声音频进行自动增益调节,对声音较小的人声音频进行增强处理。Automatic gain adjustment is performed on the human voice audio, and enhancement processing is performed on the human voice audio with a low voice.5.根据权利要求3所述的方法,其中,所述对所述环境声音频进行声音定位包括:5. The method according to claim 3, wherein said performing sound localization on said ambient sound audio comprises:所述DSP处理单元根据所述麦克风拾取的音频时间差进行声波定位,确认声源的准确位置。The DSP processing unit performs sound wave positioning according to the audio time difference picked up by the microphone to confirm the exact position of the sound source.6.根据权利要求3所述的方法,其中,所述对所述环境声音频进行环境声降噪包括:6. The method according to claim 3, wherein said performing ambient sound noise reduction on said ambient sound audio comprises:通过所述DSP处理单元对所述人声音频和所述环境声音频进行分析并去除掉所述环境声音频进行降噪。The human voice audio and the environmental sound audio are analyzed by the DSP processing unit, and the environmental sound audio is removed for noise reduction.7.根据权利要求1所述的方法,其中,所述智能设备包括能够与所述会议机进行连接通信的电脑设备WIFI设备以及蓝牙设备。7. The method according to claim 1, wherein the smart device comprises a computer device WIFI device and a Bluetooth device capable of connecting and communicating with the conference machine.8.根据权利要求1所述的方法,其中,所述麦克风为麦克风阵列,所述麦克风阵列由4个麦克风组成。8. The method according to claim 1, wherein the microphone is a microphone array, and the microphone array is composed of 4 microphones.9.一种电子设备,其包括:至少一个处理器,以及与所述至少一个处理器通信连接的存储器,其中,所述存储器存储有可被所述至少一个处理器执行的指令,所述指令被所述至少一个处理器执行,以使所述至少一个处理器能够执行权利要求1至8任一项所述方法的步骤。9. An electronic device, comprising: at least one processor, and a memory connected in communication with the at least one processor, wherein the memory stores instructions executable by the at least one processor, the instructions Executed by the at least one processor, so that the at least one processor can perform the steps of the method according to any one of claims 1 to 8.10.一种存储介质,其上存储有计算机程序,其特征在于,所述程序被处理器执行时实现权利要求1至8任一项所述方法的步骤。10. A storage medium, on which a computer program is stored, wherein when the program is executed by a processor, the steps of the method according to any one of claims 1 to 8 are realized.
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