Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, completeSite preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based onEmbodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every otherEmbodiment belongs to the scope of protection of the invention.
Referring to Fig. 1, the process that Fig. 1 is the first embodiment of the sound adjusting method of terminal device provided by the invention is shownIt is intended to.The sound adjusting method of terminal device in the present embodiment includes:
S101: the sound that the terminal device is issued according to the first sound recipient received determines first soundPosition where sound recipient.
It is understood that terminal device in the application according to the sound that the first sound recipient received issues comeDetermine that the execution of the event of the position where the first sound recipient can be by terminal device system automatic trigger, such as in terminalThe trigger condition for executing above-mentioned event is preset in device systems.The condition can be first whithin a period of time in terminal deviceSecondary when receiving sound, terminal device can determine that the first sound connects according to the sound of the first sound recipient sending receivedPosition where debit, such as user is in using terminal device plays some videos, certain song or incoming call answering, eventuallyEnd equipment only needs to receive the sound that user issues for the first time, to determine the position of user；The condition is also possible in terminal deviceReal-time reception determines the first sound recipient to sound, and according to the sound that the first sound recipient received issues come real-timeThe position at place, such as user, in using terminal device plays some videos, certain song or incoming call answering, terminal is setIt is standby only to need to receive the sound that user issues for the first time, to determine the position of user.
S102: according to the position where the first sound recipient, the volume of the loudspeaker of the terminal device is adjustedParameter makes the sound of the loudspeaker sending when reaching the position where the first sound recipient and the first default volumeBetween volume difference be lower than the first preset threshold.
Loudspeaker is a kind of electro-acoustic element for converting electrical energy into sound energy, and there are many type of loudspeaker, although their workMake mode difference, but be all finally the air for pushing surrounding by generating mechanical oscillation, air dielectric is made to generate fluctuation to realThe conversion of existing " electricity-power-sound ".Therefore the sound that loudspeaker issues is mechanical wave, and mechanical wave propagation requires medium, general nextIt says, speaking in our daily lifes is by airborne, and there are also such as sonars, are used in navigation, then sound is to pass in waterIt broadcasts, there are also solids can also be transaudient, such as steel, bone etc..Since sound is propagated by vibration medium, medium shakes meetingThere is kinetic energy, the energy attenuation of sound in the air is mainly exactly the kinetic energy for being converted into medium；For sound wave in communication process,As long as medium is constant, velocity of wave, wavelength, frequency be all it is constant, only amplitude is constantly reducing；Such as loudspeaker is at AIt makes a sound, needs user that can hear at B, then the loudness for the sound that loudspeaker issues at A just has to makeDuring sound transmission after off-energy, the amplitude of sound or loudness can also cause the sense of hearing of the user at B when at B.
Therefore, it behind position where terminal device has determined the first sound recipient, can be received according to the first soundPosition where side, adjusts the volume parameters of the loudspeaker of terminal device, and the sound for issuing loudspeaker is through overdamping and arrivesThe volume difference between wave volume and the first default volume when up to position where the first sound recipient is default lower than firstThreshold value.It is understood that the first default volume can be by user's self-setting；For example, user is accustomed to 50db's or 60dbVolume, therefore the first default volume can be arranged to 50db or 60db, so that the sound warp that the loudspeaker of terminal device issuesOverdamping and wave volume when reaching the position where user are 50db or 60db.In practical applications, sound declinesSubtract it is sufficiently complex, for example, sound is propagated in air, viscosity, the temperature of air, humidity and the air pressure etc. of decaying and airThere is relationship, therefore when the volume parameters for the loudspeaker for adjusting terminal device, the sound for issuing loudspeaker reaches the first soundWhen wave volume when position where sound recipient is the first default volume, it is poor often to there is certain volume, and general, when the range of volume difference is lower than the first preset threshold, the first sound recipient can satisfy it and raise to what is receivedThe volume requirement for the sound that sound device issues.Certainly, which can be designed for different users, such as5db or 10db, i.e. terminal device adjust the volume of the loudspeaker of terminal device according to the position where the first sound recipientParameter, volume of the sound for issuing loudspeaker when reaching the position where the first sound recipient between the first default volumeDifference is lower than 5db or 10db.
In a specific implement scene, some video of using terminal device plays, user are opposite in the room by userAfter terminal device says " adjusting volume ", terminal device determines the position where user according to user's one's voice in speech, such asThe distance between user and terminal device and direction etc.；Then terminal device adjusts terminal and sets according to the position where userThe volume parameters of standby loudspeaker make loudspeaker play the sound of sound that the video is issued when reaching the position where userAmount is 50db；Then, in the influence for fully taking into account user and terminal device local environment, the loudspeaker that end user hears is broadcastThe sound size for putting the video is 49db, since using terminal equipment, the sound of 50db or so not will lead to user in the roomUser does not hear the sound-content of video playing, will not cause to bring bad usage experience to user too loudly.
In the present embodiment, terminal device determines the by the sound issued according to the first sound recipient for receivingPosition where one sound recipient, and according to the position where the first sound recipient, adjust the loudspeaker of terminal deviceVolume parameters, the sound for issuing loudspeaker is when reaching the position where the first sound recipient between the first default volumeVolume difference is lower than the first preset threshold, so as to adjust the sound of loudspeaker according to the distance between user and terminal deviceSize prevents the distance between user and terminal device too far and user is caused to can't hear sound or user and terminal deviceThe distance between it is too close and user is caused to hear too loudly.
Referring to Fig. 2, the process that Fig. 2 is the second embodiment of the sound adjusting method of terminal device provided by the invention is shownIt is intended to.Position where the first sound recipient of the application includes the first distance between the first sound recipient and loudspeakerL1, in the present embodiment, terminal device include the first microphone and second microphone, and the terminal device of the application receives the first soundThe sound and determine that the first sound is received according to the sound that the first sound recipient received issues that sound recipient issuesPosition where side can acquire the sound sound of the first sound recipient sending respectively by the first microphone and second microphoneAmount is to be judged.The sound adjusting method of terminal device in the present embodiment includes:
S201: the terminal device obtains the first microphone acquisition when the first sound recipient makes a soundFirst acquisition volume P1 and corresponding first acquisition time T1.
First microphone of the terminal device in the application can collect the sound of the first sound recipient sending, terminalFirst acquisition volume P1 of the sound that the collected first sound recipient of available first microphone of equipment issues and rightThe the first acquisition time T1 answered.
S202: the second acquisition sound that the second microphone is acquired when the first sound recipient makes a sound is obtainedMeasure P2 and corresponding second acquisition time T2.
Likewise, the second microphone of terminal device can collect the sound of the first sound recipient sending, terminal is setThe the second acquisition volume P2 and correspondence for the sound that the standby collected first sound recipient of available second microphone issuesThe second acquisition time T2.
In a specific implement scene, after user says one section of voice to terminal device, due to user and terminalThere are a certain distance between the first microphone and second microphone of equipment, so this section of voice can reach after overdampingOne microphone and second microphone, then the first microphone and second microphone collect the volume after this section of voice decaying respectivelyWith corresponding time when collecting the volume after decaying；Wherein, the volume of collected this section of voice of the first microphone is firstAcquisition volume P1, corresponding time are the first acquisition time T1, and the volume of collected this section of voice of second microphone is secondAcquire volume P2, the corresponding time is the second acquisition time T2.
S203: volume difference △ P and institute between volume P2 are acquired according to the first acquisition volume P1 and described secondState the time difference △ T between the first acquisition time T1 and the second acquisition time T2, determine the first sound recipient withThe third between second distance L2 and the first sound recipient and the second microphone between first microphoneDistance L3.Wherein, second distance L2, third distance L3 the spread speed V with volume difference △ P, time difference △ T and sound respectivelyBetween there are following relationships:
L2=V* △ T/ (10△P/20-1)；
L3=V* △ T/ (10△P/20-1)+V*(△T)。
It is understood that due to second distance L2 and the first sound between the first sound recipient and the first microphoneThird distance L3 possibility between recipient and second microphone is identical may also be different, and therefore, the first microphone is in the first soundThe the first acquisition volume P1 and second microphone that sound recipient acquires when making a sound are when the first sound recipient makes a soundSecond acquisition volume P2 of acquisition may be identical or different, and corresponding first acquisition time T1 and the second acquisition time T2 may alsoIt is identical or different, therefore there are volume difference △ P between the first acquisition volume P1 and the second acquisition volume P2, the first acquisition time T1 withThere is also time difference △ T between second acquisition time T2.It is understood that being made a sound in the first sound recipient, soundIt is collected by the first microphone and second microphone after second distance L2 and third distance L3, declines thus according to sound respectivelySubtract formula, volume difference △ P and second distance L2 and third distance L3 between the first acquisition volume P1 and the second acquisition volume P2Between there are following relationships:
△ P=P2-P1=20lg (L2/L3) (1)；
As with the speed V of third distance L3 being by second distance L2 due to sound again, then second distance L2 andThere are relationships by time difference △ T between third distance L3 and the first acquisition time T1 and the second acquisition time T2:
△ T=T2-T1=(L3-L2)/V (2)；
Then, according to relationship (1) and relationship (2), can in the hope of second distance L2, third distance L3 respectively with volume difference △P, there are following relationships between time difference △ T and the spread speed V of sound:
L2=V* △ T/ (10△P/20-1)；
L3=V* △ T/ (10△P/20-1)+V*(△T)。
Therefore, terminal device according to the first of acquisition acquisition volume P1 and second acquisition volume P2 between volume difference △ P,The spread speed V of time difference △ T and sound between first acquisition time T1 and the second acquisition time T2, can determine firstThe third between second distance L2 and the first sound recipient and second microphone between sound recipient and the first microphoneDistance L3.
S204: the second distance L2, the third distance L3 and the loudspeaker and first microphone are utilizedBetween the 4th distance L4 and the loudspeaker and the second microphone between the 5th distance L5, determination obtain described firstDistance L1.
It is understood that since the first microphone, second microphone and loudspeaker are located at the specific position of terminal deviceIt is pre-set for setting, can by designer in advance by between loudspeaker and the first microphone the 4th distance L4 and loudspeakingThe 5th distance L5 between device and second microphone is stored in terminal device, and because the first sound has been determined by the above methodThe third between second distance L2 and the first sound recipient and second microphone between sound recipient and the first microphone away fromFrom L3, therefore terminal device can use second distance L2, third distance L3, the 4th distance L4 and the 5th distance L5 and obtain firstFirst distance L1 between sound recipient and loudspeaker.
S205: the position packet according to the position where the first sound recipient, where the first sound recipientThe first distance L1 between the first sound recipient and the loudspeaker is included, the sound of the loudspeaker of the terminal device is adjustedParameter is measured, makes the sound of the loudspeaker sending when reaching the position where the first sound recipient and the first default soundVolume difference between amount is lower than the first preset threshold.
Due to that can determine the first distance L1 obtained between the first sound recipient and loudspeaker, then terminal device canTo adjust the volume parameters of the loudspeaker of terminal device according to first distance L1, the sound for issuing loudspeaker reaches firstVolume difference when position where sound recipient between the first default volume is lower than the first preset threshold.In this implement sceneIn, in the first embodiment of the sound adjusting method of step S205 provided in this embodiment and terminal device provided by the present applicationStep S102 is substantially similar, and details are not described herein again.
In the present embodiment, terminal device is received by obtaining the first microphone and second microphone respectively in the first soundThe first acquisition volume P1, the second acquisition volume P2 and the corresponding first acquisition time T1, second that side acquires when making a soundAcquisition time T2, and according to volume difference △ P between the first of acquisition the acquisition volume P1 and the second acquisition volume P2, the first acquisitionThe spread speed V of time difference △ T and sound between time T1 and the second acquisition time T2, determine the first sound recipient withThe third distance L3 between second distance L2 and the first sound recipient and second microphone between first microphone, further according toThe 5th distance L5 between the 4th distance L4 and loudspeaker and second microphone between loudspeaker and the first microphone prestored,So as to realize that determination obtains the first distance L1 between the first sound recipient and loudspeaker.
Referring to Fig. 3, the process that Fig. 3 is the 3rd embodiment of the sound adjusting method of terminal device provided by the invention is shownIt is intended to.The sound adjusting method of terminal device in the present embodiment includes:
S301: the terminal device obtains the first microphone acquisition when the first sound recipient makes a soundFirst acquisition volume P1 and corresponding first acquisition time T1.
S302: the second acquisition sound that the second microphone is acquired when the first sound recipient makes a sound is obtainedMeasure P2 and corresponding second acquisition time T2.
S303: volume difference △ P and institute between volume P2 are acquired according to the first acquisition volume P1 and described secondState the time difference △ T between the first acquisition time T1 and the second acquisition time T2, determine the first sound recipient withThe third between second distance L2 and the first sound recipient and the second microphone between first microphoneDistance L3.
S304: the second distance L2, the third distance L3 and the loudspeaker and first microphone are utilizedBetween the 4th distance L4 and the loudspeaker and the second microphone between the 5th distance L5, determination obtain described firstDistance L1.
In this implement scene, the sound of step S301-S304 and terminal device provided by the present application provided in this embodimentStep S201-S204 in the second embodiment of sound adjusting method is substantially similar, and details are not described herein again.
S305: the determining speaker volume with the first distance L1 with the first incidence relation.
It is understood that after overdamping and being reached since sound that terminal device loudspeaker issues needs to meetThe volume difference between wave volume and the first default volume when position where the first sound recipient is lower than the first default thresholdValue, and the decaying of sound and first distance L1 between the first sound recipient and loudspeaker are related, therefore, terminal device can be withIt is previously stored with first incidence relation of the first distance L1 with corresponding speaker volume, which indicates: when theOne distance L1 is a certain particular value, and the volume for the sound that loudspeaker issues just can guarantee when being corresponding decibel value reaches firstThe volume difference between wave volume and the first default volume when position where sound recipient is lower than the first preset threshold.InIt is that after determination obtains first distance L1, terminal device can obtain corresponding speaker volume according to first incidence relation.
S306: the volume parameters of the loudspeaker of the terminal device are adjusted according to the speaker volume of the determination.
Due in previous step S305, after determining and obtaining first distance L1, terminal device can determine with first away fromFrom the speaker volume that L1 has the first incidence relation；Then terminal device can adjust end according to determining speaker volumeThe volume parameters of the loudspeaker of end equipment, the sound for issuing loudspeaker is through overdamping and where reaching the first sound recipientPosition when wave volume and the first default volume between volume difference be lower than the first preset threshold.
Referring to Fig. 4, the process that Fig. 4 is the fourth embodiment of the sound adjusting method of terminal device provided by the invention is shownIt is intended to.The sound adjusting method of terminal device in the present embodiment includes:
S401: the terminal device obtains the first microphone acquisition when the first sound recipient makes a soundFirst acquisition volume P1 and corresponding first acquisition time T1.
S402: the second acquisition sound that the second microphone is acquired when the first sound recipient makes a sound is obtainedMeasure P2 and corresponding second acquisition time T2.
S403: volume difference △ P and institute between volume P2 are acquired according to the first acquisition volume P1 and described secondState the time difference △ T between the first acquisition time T1 and the second acquisition time T2, determine the first sound recipient withThe third between second distance L2 and the first sound recipient and the second microphone between first microphoneDistance L3.
S404: the second distance L2, the third distance L3 and the loudspeaker and first microphone are utilizedBetween the 4th distance L4 and the loudspeaker and the second microphone between the 5th distance L5, determination obtain described firstDistance L1.
In this implement scene, the sound of step S401-S404 and terminal device provided by the present application provided in this embodimentStep S301-S304 in the 3rd embodiment of sound adjusting method is substantially similar, and details are not described herein again.
S405: mesh is issued according to obtained the first distance L1 and the preset first distance and the loudspeakerThe second incidence relation when mark with phonetic symbols amount between the collected third acquisition volume P3 of the first microphone, determines that third acquires volumeP3；Wherein, the sound between the target volume can be such that the first sound recipient receives volume and the first default volumeIt measures difference and is lower than the first preset threshold.Second incidence relation are as follows: P3=PA+20lg (L1/L4)；The PA is described firstDefault volume.
First microphone when the terminal device of the application can be preset with first distance L1 and loudspeaker sending target volumeThe second incidence relation between collected third acquisition volume P3.It is understood that the loudspeaker when terminal device issuesSound when being target volume, sound arrives separately at the position where the first microphone and the first sound recipient by propagation,At this point, the volume that the first microphone receives is that third acquires volume P3, since target volume can make the first sound recipientVolume difference between the default volume of volume and first received is lower than the first preset threshold, so the first sound recipient receivesThe volume arrived is the first default volume PA, thus according to acoustic attenuation equation it follows that PA-P3=20lg (L4/L1), i.e., eventuallyThe collected third of the first microphone acquires volume P3 when the preset first distance L1 of end equipment and loudspeaker issue target volumeBetween the second incidence relation are as follows: P3=PA+20lg (L1/L4)；Because of the first default volume PA, loudspeaker and the first microphoneBetween the 4th distance L4 it is known that so the actual first distance L1 obtained according to above-mentioned steps, can determine third at this timeAcquire the size of volume P3.
S406: according to the third of the determination acquire volume that volume P3 and the preset loudspeaker issue with it is correspondingThird acquisition volume between third incidence relation, determine the speaker volume.
The terminal device of the application can be preset between the volume of loudspeaker sending and corresponding third acquisition volumeThird incidence relation.It is understood that after the sound that the loudspeaker of terminal device issues, sound meeting after propagation attenuationThe position of the first microphone is reached, then designer can be by testing in advance and recording: when the loudspeaker of terminal device is sent outThe corresponding third that the first microphone is respectively received when the volume of different decibels out acquires volume P3；Then terminal device is establishedLoudspeaker issue the third incidence relation between the volume of different decibels and corresponding third acquisition volume P3, and by the thirdIncidence relation is stored in terminal device.It then passes through in step S405 and is acquired according to the third that actual first distance L1 is determinedThe size of volume P3 and preset third incidence relation, it can determine in step S405 according to actual first away fromThe volume that the loudspeaker of terminal device corresponding to size from the L1 third acquisition volume P3 determined issues.
S407: the volume parameters of the loudspeaker of the terminal device are adjusted according to the speaker volume of the determination.
In this implement scene, the sound of step S407 provided in this embodiment and terminal device provided by the present application is adjustedStep S306 in the 3rd embodiment of method is substantially similar, and details are not described herein again.
In a specific implement scene, terminal device is mobile phone, and the first default volume PA is 60db, the loudspeaking of mobile phoneThe 4th distance L4 between device and the first microphone is 0.2m, when the sound that the loudspeaker of mobile phone issues is target volume, soundSound arrives separately at the position where the first microphone and user by propagation, at this point, the volume that the first microphone receives is theThree acquisition volume P3, the first default volume PA that user receives is 60db, thus according to first distance L1 preset in mobile phoneThe second incidence relation when issuing target volume with loudspeaker between the collected third acquisition volume P3 of the first microphone: P3=60+20lg(L1/0.2)；When obtained actual first distance L1 is 2m, it can determine that the acquisition of third at this time volume P3's is bigIt is small, such as when actual first distance L1 is 2m, it is 70db that third, which acquires volume P3,.In addition, since designer is passing throughTest and record in the third incidence relation obtained in advance: when the loudspeaker of mobile phone issues the volume of 71db, the first microphone is connectThe corresponding third acquisition volume P3 received is 70db, therefore, according to third corresponding when actual first distance L1 is 2mAcquire volume P3 be 70db and preset third incidence relation, it can determine actual first distance L1 be 2m when pairThe volume for the sound that the loudspeaker answered issues is 71db.Then mobile phone can adjust hand according to determining speaker volume 71dbThe volume parameters of the loudspeaker of machine, sound of the sound for issuing loudspeaker through overdamping and when reaching the position where userVolume is in 60db or so, to meet the use demand of user.
In the present embodiment, terminal device passes through obtained first distance L1 and preset first distance and loudspeaker is sent outThe second incidence relation when target volume between the collected third acquisition volume P3 of the first microphone out, to determine that third acquiresVolume P3, and the volume further issued according to determining third acquisition volume P3 and preset loudspeaker and corresponding thirdThe third incidence relation between volume is acquired, may thereby determine that the volume of loudspeaker.
Referring to Fig. 5, the process that Fig. 5 is the 5th embodiment of the sound adjusting method of terminal device provided by the invention is shownIt is intended to.The sound adjusting method of terminal device in 5th embodiment includes:
S501: the sound that the terminal device is issued according to the first sound recipient received determines first soundPosition where sound recipient.
S502: according to the position where the first sound recipient, the volume of the loudspeaker of the terminal device is adjustedParameter makes the sound of the loudspeaker sending when reaching the position where the first sound recipient and the first default volumeBetween volume difference be lower than the first preset threshold.
In this implement scene, the sound of step S501-S502 and terminal device provided by the present application provided in this embodimentStep S101-S102 in the first embodiment of sound adjusting method is substantially similar, and details are not described herein again.
S503: the sound that the terminal device is issued according to the noise source received determines the position where the noise sourceIt sets.
The sound issued with the application terminal device according to the first sound recipient received determines that the first sound receivesPosition where side is similar, and the sound that the terminal device of the application can also be issued according to the noise source received, determination is made an uproarPosition where sound source.Particular content please refers in the first embodiment of sound adjusting method of terminal device provided by the present applicationStep S101, details are not described herein again.
S504: according to the position where the noise source, the volume parameters of the loudspeaker of the terminal device are adjusted, make instituteState volume of the sound of loudspeaker sending when reaching the position where the first sound recipient between the second default volumeDifference is lower than the second preset threshold, wherein the second default volume is greater than the described first default volume.
It is understood that after terminal device has determined the position where the first sound recipient, it can be according to firstPosition where sound recipient adjusts the volume parameters of the loudspeaker of terminal device, and the sound for issuing loudspeaker is by decliningSubtract and the wave volume when reaching the position where the first sound recipient and the volume difference between the first default volume are lower thanFirst preset threshold；But when, there is also when noise source, noise source can set the first received terminal of sound recipient in environmentThe sound that standby loudspeaker issues generates certain interference, and therefore, the terminal device of the application can be according to where noise sourcePosition further adjusts the volume parameters of the loudspeaker of terminal device, and the sound for issuing loudspeaker connects in the first sound of arrivalVolume difference when position where debit between the second default volume is lower than the second preset threshold, wherein the second default volumeGreater than the first default volume, to offset or compensate the noise of noise source sending to the first received terminal device of sound recipientLoudspeaker issue sound influence.
In a specific implementation scene, user uses mobile phone incoming call answering in office, and mobile phone is according between user and itsDistance, adjust the volume parameters of loudspeaker, make loudspeaker issue sound reach user volume 50db；But midwaySide has a colleague to talk with other people, and in order to reduce interference of the colleague to user, mobile phone can be according to receivingColleague's one's voice in speech to determine the position where the colleague, and further adjusts loudspeaker according to the position of the colleagueVolume parameters, volume 60db of the sound for issuing loudspeaker when reaching user, so as to realize that compensating the colleague saysThe interference to user's incoming call answering is talked about, prevents user from not hearing incoming call content.
Referring to Fig. 6, the process that Fig. 6 is the sixth embodiment of the sound adjusting method of terminal device provided by the invention is shownIt is intended to.Position where the noise source of the application include the 6th distance L6 between noise source and the first microphone, noise source withThe 7th distance L7 between second microphone.Likewise, the terminal device of the application receives the sound and root that noise source issuesThe position where noise source is determined according to the sound that the noise source received issues, and can pass through the first microphone and the second MikeThe wind wave volume that acquisition noise source issues respectively is judged.The sound adjusting method packet of terminal device in the present embodimentIt includes:
S601: the sound that the terminal device is issued according to the first sound recipient received determines first soundPosition where sound recipient.
S602: according to the position where the first sound recipient, the volume of the loudspeaker of the terminal device is adjustedParameter makes the sound of the loudspeaker sending when reaching the position where the first sound recipient and the first default volumeBetween volume difference be lower than the first preset threshold.
In this implement scene, the sound of step S601-S602 and terminal device provided by the present application provided in this embodimentStep S101-S102 in the first embodiment of sound adjusting method is substantially similar, and details are not described herein again.
S603: obtain the 4th acquisition volume P4 that first microphone is acquired when the noise source makes a sound andCorresponding 4th acquisition time T4.
First microphone of the terminal device in the application can collect the sound of noise source sending, and terminal device can be withObtain the 4th acquisition volume P4 and corresponding 4th acquisition time of the sound that the collected noise source of the first microphone issuesT4。
S604: obtain the 5th acquisition volume P5 that the second microphone acquires when the noise source makes a sound andCorresponding 5th acquisition time T5.
Likewise, the second microphone of terminal device can collect the sound of noise source sending, terminal device can be obtained5th acquisition volume P5 and corresponding 5th acquisition time T5 of the sound for taking the collected noise source of second microphone to issue.
In a specific implement scene, after noise source issues noise, due to the first of noise source and terminal deviceThere are a certain distance between microphone and second microphone, so the noise can reach the first microphone and after overdampingTwo microphones, after then the first microphone and second microphone collect the volume after the noise attentuation respectively and collect decayingVolume when corresponding time；Wherein, the volume of collected this section of voice of the first microphone is the 4th acquisition volume P4, correspondenceTime be the 4th acquisition time T4, the volume of collected this section of voice of second microphone is the 5th acquisition volume P5, correspondenceTime be the 5th acquisition time T5.
S605: according to the volume difference △ P ' between the 4th acquisition volume P4 and the 5th acquisition volume P5, andTime difference △ T ' between the 4th acquisition time T4 and the 5th acquisition time T5 determines the noise source and described theThe 6th distance L6 between one microphone and the 7th distance L7 between the noise source and the second microphone.Wherein,There are following relationships between volume difference △ P ', time difference △ T ' respectively by six distance L6, the 7th distance L7:
L6=V* △ T '/(10△P’/20-1)；
L7=V* △ T '/(10△P’/20-1)+V*(△T’)。
It is understood that determining the first sound recipient and the first wheat with terminal device in second embodiment step S203The third distance L3 between second distance L2 and the first sound recipient and second microphone between gram wind is identical, due to noiseThe 6th distance L6 between source and the first microphone and the 7th distance L7 possibility between noise source and second microphone are identicalMay be different, therefore, the 4th acquisition volume P4 and second microphone that the first microphone is acquired when noise source makes a sound existThe 5th acquisition volume P5 acquired when noise source makes a sound may identical or different, corresponding 4th acquisition time T4 and the 5thAcquisition time T5 may also be identical or different, therefore there are volume difference △ between the 4th acquisition volume P4 and the 5th acquisition volume P5P ', there is also time difference △ T ' between the 4th acquisition time T4 and the 5th acquisition time T5.It is understood that being sent out in noise sourceSound out, sound are collected by the first microphone and second microphone respectively after the 6th distance L6 and the 7th distance L7, inIt is the volume difference △ P ' and the 6th distance L6 according to acoustic attenuation equation, between the 4th acquisition volume P4 and the 5th acquisition volume P5And the 7th there are following relationships between distance L7:
△ P '=P5-P4=20lg (L6/L7) (3)；
Again the same by the speed V of the 6th distance L6 and the 7th distance L7 due to sound, then the 6th distance L6 andThere are relationships by time difference △ T ' between 7th distance L7 and the 4th acquisition time T4 and the 5th acquisition time T5:
△ T '=T5-T4=(L7-L6)/V (4)；
Then, according to relationship (3) and relationship (4), can in the hope of the 6th distance L6, the 7th distance L7 respectively with volume difference △There are following relationships between the spread speed V of P ', time difference △ T ' and sound:
L6=V* △ T '/(10△P’/20-1)；
L7=V* △ T '/(10△P’/20-1)+V*(△T’)。
Therefore, terminal device is according to the volume difference △ between the 4th of acquisition the acquisition volume P4 and the 5th acquisition volume P5The spread speed V of time difference △ T ' and sound between P ', the 4th acquisition time T4 and the 5th acquisition time T5, can determineThe 6th distance L6 between noise source and the first microphone and the 7th distance L7 between noise source and second microphone.
S606: according to the position where the noise source, the position where the noise source includes the noise source and instituteThe 7th distance L7 between the 6th distance L6, the noise source and the second microphone between the first microphone is stated, is adjustedThe volume parameters of the loudspeaker of the terminal device, the sound for issuing the loudspeaker reach the first sound recipientVolume difference when the position at place between the second default volume is lower than the second preset threshold, wherein the second default volumeGreater than the described first default volume.
In this implement scene, the sound of step S606 provided in this embodiment and terminal device provided by the present application is adjustedStep S504 in the first embodiment of method is substantially similar, and details are not described herein again.
In the present embodiment, terminal device by obtaining the first microphone and second microphone in noise source sending sound respectivelyThe 4th acquisition volume P4, the 5th acquisition volume P5 and the corresponding 4th acquisition time T4, the 5th acquisition time acquired when soundT5, and according to volume difference △ P ', the 4th acquisition time T4 between the 4th of acquisition the acquisition volume P4 and the 5th acquisition volume P5The spread speed V of time difference △ T ' and sound between the 5th acquisition time T5, may thereby determine that noise source and firstThe 6th distance L6 between microphone and the 7th distance L7 between noise source and second microphone.
Referring to Fig. 7, the process that Fig. 7 is the 7th embodiment of the sound adjusting method of terminal device provided by the invention is shownIt is intended to.The sound adjusting method of terminal device in 7th embodiment includes:
S701: the sound that the terminal device is issued according to the first sound recipient received determines first soundPosition where sound recipient.
S702: according to the position where the first sound recipient, the volume of the loudspeaker of the terminal device is adjustedParameter makes the sound of the loudspeaker sending when reaching the position where the first sound recipient and the first default volumeBetween volume difference be lower than the first preset threshold.
S703: obtain the 4th acquisition volume P4 that first microphone is acquired when the noise source makes a sound andCorresponding 4th acquisition time T4.
S704: obtain the 5th acquisition volume P5 that the second microphone acquires when the noise source makes a sound andCorresponding 5th acquisition time T5.
S705: according to the volume difference △ P ' between the 4th acquisition volume P4 and the 5th acquisition volume P5, andTime difference △ T ' between the 4th acquisition time T4 and the 5th acquisition time T5 determines the noise source and described theThe 6th distance L6 between one microphone and the 7th distance L7 between the noise source and the second microphone.
In this implement scene, the sound of step S601-S605 and terminal device provided by the present application provided in this embodimentStep S701-S705 in the first embodiment of sound adjusting method is substantially similar, and details are not described herein again.
S706: according between the noise source and first microphone the 6th distance L6, the noise source withThe institute between the 7th distance L7, the first sound recipient and first microphone between the second microphoneThe third distance L3 between second distance L2, the first sound recipient and the second microphone is stated, is obtained describedThe 8th distance L8 between noise source and the first sound recipient.
It is understood that since between the first sound recipient and the first microphone being determined by preceding methodThird distance L3 between two distance L2 and the first sound recipient and second microphone, and noise source and the first Mike has been determinedThe 7th distance L7 between the 6th distance L6, noise source and second microphone between wind, therefore terminal device can useTwo distance L2, third distance L3, the 6th distance L6 and the 7th distance L7 obtain between the first sound recipient and noise sourceEight distance L8.
S707: according to the 8th between the 4th acquisition volume P4, the noise source and the first sound recipientDistance L8 adjusts the volume parameters of the loudspeaker of the terminal device, and the volume for the sound for issuing the loudspeaker reachesVolume difference when position where the first sound recipient between the second default volume is lower than the second preset threshold.
It is understood that since the noise that noise source issues receives the 4th acquisition sound by the first microphone by propagationP4 is measured, preceding method has determined that the 6th distance L6, noise source and the first sound between noise source and the first microphone receive againThe 8th distance L8 between side, then wave volume Pz when position where noise transmission to the first sound recipient meets soundSound decay formula: the volume of noise that Pz-P4=20lg (L6/L8), i.e. the first sound recipient receive noise source sending isPz=P4+20lg (L6/L8).Then, in order to offset or compensate the noise of noise source sending to the shadow of the first sound recipientIt rings, terminal device needs further to adjust the volume parameters of the loudspeaker of terminal device, and the sound for issuing loudspeaker reachesVolume difference when position where the first sound recipient between the second default volume is lower than the second preset threshold, wherein theTwo default volumes are greater than the first default volume.
Referring to Fig. 8, the process that Fig. 8 is the 8th embodiment of the sound adjusting method of terminal device provided by the invention is shownIt is intended to.The sound adjusting method of terminal device in 8th embodiment includes:
S801: the sound that the terminal device is issued according to the first sound recipient received determines first soundPosition where sound recipient.
S802: according to the position where the first sound recipient, the volume of the loudspeaker of the terminal device is adjustedParameter makes the sound of the loudspeaker sending when reaching the position where the first sound recipient and the first default volumeBetween volume difference be lower than the first preset threshold.
In this implement scene, the sound of step S801-S802 and terminal device provided by the present application provided in this embodimentStep S101-S102 in the first embodiment of sound adjusting method is substantially similar, and details are not described herein again.
S803: the sound that the terminal device is issued according to the second sound recipient received determines the rising toneThe 9th distance L9 between sound recipient and the loudspeaker.
The sound issued with the application terminal device according to the first sound recipient received determines that the first sound receivesPosition where side is similar, the sound that the terminal device of the application can also be issued according to the second sound recipient receivedSound determines the 9th distance L9 between second sound recipient and loudspeaker.Specific implementation method please refers to the various embodiments described aboveIn acquisition methods about the first distance L1 between the first sound recipient and loudspeaker, details are not described herein again.
S804: it when determining that the first distance L1 is less than the 9th distance L9, according to the 9th distance L9, adjustsThe volume parameters of the loudspeaker of the terminal device, the sound for issuing the loudspeaker reach the second sound recipientIt presets the volume difference between volume with third when the position at place and is lower than third predetermined threshold value；Wherein, the third presets volumeLess than the described first default volume.
It is understood that illustrating that second sound recipient sets with terminal when first distance L1 is less than the 9th distance L9Standby distance is farther for the first sound recipient, so, in order to which the sound for issuing loudspeaker reaches the rising toneLess than certain volume value when position where sound recipient, need further to adjust terminal device according to the 9th distance L9The volume parameters of loudspeaker.In a specific implementation scene, the first default volume is 60db, the sound that terminal device loudspeaker issuesSound reach the first sound recipient when be the first default volume 60db, due to second sound recipient at a distance from terminal device phaseIt is farther for the first sound recipient, it is 40db when sound reaches second sound recipient at this time；Third presets volume20db, in general, sound are not easy to influence other people when being less than 20db, need further to adjust the loudspeaker of terminal device at this timeVolume parameters, the sound for issuing loudspeaker is less than the default volume of third when reaching the position where second sound recipient20db, the sound that terminal device loudspeaker issues at this time reach volume 60db default less than first, example when the first sound recipientFor example 40db.
In an application scenarios, as shown in figure 9, Fig. 9 is the sound adjusting method application of terminal device provided by the inventionIn the schematic illustration of an application scenarios, terminal device includes loudspeaker, mic A and mic B, wherein loudspeaker is with mic A'sPosition is overlapped.When user C makes a sound, mic A obtains the loudness Pac and corresponding time Tac for the sound that user C is issued,Mic B obtains the sound intensity Pbc and corresponding time Tbc that user C is issued；The spread speed of sound is V, thus according to micA and mic B obtains the time difference of sound it can be concluded that (1): BC-AC=V* (Tbc-Tac)；According to mic A and mic B acquisition soundThe loudness difference and acoustic attenuation equation of sound are it can be concluded that (2): Pac-Pbc=20lg (BC/AC)；By (1) (2) it can be concluded that ACSpecific distance；It is closed according to the position that the relationship between loudspeaker E and mic A and mic B can find out loudspeaker E and user CSystem；Then the size of the sound of loudspeaker E sending can be adjusted at a distance from user C according to loudspeaker E.If loudspeaker E is sent outWave volume out is Px, and measuring mic B and receiving the sound intensity of loudspeaker E sending is Pxb；Control user C, which is received, to be raisedThe sound intensity that sound device E is issued is definite value, such as 60db；It is then obtained by acoustic attenuation equation: Pxb-60=20lg (AC/AB)；ByIn AB it is known that AC has been found out, therefore mic B receives the relationship between the sound intensity Pxb and AC of loudspeaker E sending are as follows: Pxb=60+20lg(AC/AB)；Designer can receive with mic B and raise by testing the wave volume Px for issuing loudspeaker EThe relationship between sound intensity Pxb that sound device E is issued forms correspondence, therefore after finding out AC, it can Pxb is found out, further according toThe sound of loudspeaker E is adjusted to Px by the corresponding relationship between Pxb and Px, is to meet the intensity of sound that user C is received60db。
Similarly, mic A obtains the loudness Pad for the sound that noise sound source D is issued and corresponding time Tad, mic B acquisition are made an uproarThe sound intensity Pbd and corresponding time Tbd that speech source D is issued；The time difference of noise is obtained thus according to mic A and mic BIt can be concluded that (3): BD-AD=V* (Tbd-Tad)；The loudness difference and sound attenuating public affairs of noise are obtained according to mic A and mic BFormula is it can be concluded that (4): Pad-Pbd=20lg (BD/AD)；By (3) (4) it can be concluded that the specific distance of AD；According to loudspeaker E withRelationship between mic A and mic B can find out the positional relationship of loudspeaker E Yu noise sound source D, and from which further follow that noise soundThe distance between source D and user C.If it is Pcd that user C, which obtains the sound intensity that noise sound source D is issued, then, by sound attenuatingFormula obtains: Pad-Pcd=20lg (CD/AD), i.e. the noise sound that Pcd=Pad-20lg (CD/AD) receives to get user C outThe size of source D then suitably the volume of loudspeaker E can be turned up, to counteract or compensate for influence of the noise sound source D to user C.
It is possible to further find out the distance between loudspeaker E and other people F AF, if other people F receive loudspeaker EThe sound intensity of sending is Pfa.Since the user C receiving speaker E sound intensity issued is definite value, such as 60db；Then, byAcoustic attenuation equation obtains: 60-Pfa=20lg (AF/AC), i.e. Pfa=60-20lg (AF/AC)；Due to AF, AC it is known that obtainingThe sound intensity that other people F receive loudspeaker E sending is that Pfa can be suitably by the volume tune of loudspeaker E as Pfa higherIt is low, to reduce the influence to other people F or protect the privacy of user C that other people F is not allowed to hear.
Figure 10 and Figure 11 are please referred to, Figure 10 is the structural schematic diagram of the first embodiment of terminal device provided by the invention,Figure 11 is the structural schematic diagram of one embodiment of control device in terminal device provided by the invention.Terminal in the present embodiment is setStandby 100 include loudspeaker 1000 and the control device 1002 with the coupling of loudspeaker 1000, and control device 1002 includes being mutually coupledMemory 10020 and processor 10022, for memory 10020 for storing program data, processor 10022 executes the programData, for realizing method as described above.
Figure 12 is please referred to, Figure 12 is the structural schematic diagram of the second embodiment of terminal device provided by the invention.With upper oneUnlike embodiment, in the present embodiment, terminal device 100 further includes the first microphone coupled with control device 10021004 and second microphone 1006；First microphone 1004 and second microphone 1006 are used in each sound recipient and noiseVolume and corresponding acquisition time are acquired when source makes a sound.
Corresponding step in the sound adjusting method embodiment of above-mentioned terminal device can be performed in the present embodiment processor 10022Suddenly, therefore it is not repeated herein, please refers to the explanation of the above corresponding step in detail.
Terminal device 100 in the application can include the equipment of loudspeaker to be any, such as can be sound equipment, radio receptionThe electronic equipments such as machine, recorder are also possible to the smart machines such as mobile phone, tablet computer, desktop computer.
Figure 13 is please referred to, Figure 13 is the device provided by the invention with store function.Device 130 with store functionIn be stored with program data 1300, program data 1300 can be performed to be adjusted with the sound for realizing terminal device as described aboveMethod.
The device 130 with store function can be storage chip in terminal, hard disk either mobile hard disk orThe tool of other read-write storages such as flash disk, CD, can also be server etc..
In several embodiments provided herein, it should be understood that disclosed method, equipment and device, it can be withIt realizes by another way.For example, device structure embodiment described above is only schematical, for example, moduleOr the division of unit, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple listsMember or component can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point,Shown or discussed mutual coupling, direct-coupling or communication connection can be through some interfaces, device or unitIndirect coupling or communication connection, can be electrical property, mechanical or other forms.
Unit may or may not be physically separated as illustrated by the separation member, shown as a unitComponent may or may not be physical unit, it can and it is in one place, or may be distributed over multiple networksOn unit.It can select some or all of unit therein according to the actual needs to realize the mesh of present embodiment scheme's.
It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unitIt is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated listMember both can take the form of hardware realization, can also realize in the form of software functional units.
Mode the above is only the implementation of the present invention is not intended to limit the scope of the invention, all to utilize thisEquivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it is relevant to be applied directly or indirectly in otherTechnical field is included within the scope of the present invention.