CN102779525A

CN102779525A - Noise reduction method and terminal

Info

Publication number: CN102779525A
Application number: CN2012102557735A
Authority: CN
Inventors: 梅敬青; 薛国栋
Original assignee: Huawei Device Co Ltd
Current assignee: Huawei Device Co Ltd
Priority date: 2012-07-23
Filing date: 2012-07-23
Publication date: 2012-11-14
Anticipated expiration: 2032-07-23
Also published as: WO2014015745A1; CN102779525B

Abstract

An embodiment of the invention provides a noise reduction method and a terminal. When a first terminal begins to receive a first audio signal, an audio recording start order is sent to a second terminal and used for instructing the second terminal to start recording a second audio signal generated by the second terminal. When the first terminal stops receiving the first audio signal, an audio recording end order is sent to the second terminal and used for instructing the second terminal to stop recording the second audio signal, and the first terminal is enabled to receive the recorded second audio signal sent by the second terminal and denoise the first audio signal by means of the second audio signal. Therefore, the problem that audio signals are inhibited to some extent during inhibition of noise in the prior art is solved, and voice quality after noise reduction is improved while noise reduction reliability is improved.

Description

Noise-reduction method and terminal

Technical field

The application relates to noise management technique, relates in particular to noise-reduction method and terminal.

Background technology

Along with the acoustic processing technical development is more and more faster, the terminal is also increasingly high to the requirement of the sound quality that needs are handled, and noise reduction technology arises at the historic moment.Present noise reduction technology mainly is to adopt the dual microphone active noise reduction; Through certain algorithm, the voice data (being the stronger voice signal of noise and signal intensity) that the voice data (being the more weak voice signal of noise and signal intensity) that utilizes a microphone to receive receives another microphone carry out noise reduction system.

Yet, though existing noise-reduction method can suppress noise, equally also voice signal has been carried out certain inhibition, can influence noise reduction sound quality afterwards, caused the reduction of the reliability of noise reduction.

Summary of the invention

The application's many aspects provide noise-reduction method and terminal, in order to improve the reliability of noise reduction.

The application's one side provides a kind of noise-reduction method, comprising:

When first terminal begins to receive first sound signal, send the audio recording initiation command to second terminal, said audio recording initiation command is used to second sound signal of indicating said second terminal of the said second terminal opening entry to generate;

When said first sound signal is finished to receive in said first terminal, send audio recording the finish command to said second terminal, said audio recording the finish command is used to indicate said second sound signal of the said second terminal end record;

Said first terminal receives said second sound signal that has write down that send at said second terminal, utilizes said second sound signal that said first sound signal is carried out noise reduction.

Aforesaid aspect and arbitrary possible implementation further provide a kind of implementation, and said first terminal begins to receive before first sound signal, also comprises: said first terminal and the said second terminal execution time are synchronous;

Comprise initial time stamp in the said audio recording initiation command, said initial time stamp is used to time of indicating said second sound signal of said second terminal records to begin;

Comprise the concluding time stamp in said audio recording the finish command, the said concluding time is stabbed the time that is used to indicate said second sound signal end of said second terminal records.

Aforesaid aspect and arbitrary possible implementation further provide a kind of implementation, and said first terminal receives said second sound signal that has write down that send at said second terminal, comprising:

Said first terminal receives said second terminal when judging that said second sound signal causes interference to first sound signal, said second sound signal that has write down of transmission.

Aforesaid aspect and arbitrary possible implementation further provide a kind of implementation, and said first sound signal is the sound signal that said first terminal receives through main Mike; The 3rd sound signal is the sound signal that said first terminal receives through auxilliary Mike; Said first terminal utilizes said second sound signal that said first sound signal is carried out also comprising before the noise reduction:

Said first terminal receives said the 3rd sound signal through auxilliary Mike;

Said first terminal obtains the dampening information of said second sound signal according to said the 3rd sound signal and said second sound signal;

Said first terminal utilizes said second sound signal that said first sound signal is carried out noise reduction, comprising:

Said first terminal utilizes the dampening information of said second sound signal and said second sound signal, and said first sound signal is carried out noise reduction.

The application provides a kind of noise-reduction method on the other hand, comprising:

Said first terminal to server sends said first sound signal, so that said second sound signal of said server by utilizing is carried out noise reduction to said first sound signal.

Aforesaid aspect and arbitrary possible implementation further provide a kind of implementation, and said first terminal begins to receive before first sound signal, also comprises:

Said first terminal and the said second terminal execution time are synchronous;

Aforesaid aspect and arbitrary possible implementation further provide a kind of implementation, and said first terminal utilizes said second sound signal that said first sound signal is carried out also comprising before the noise reduction:

Said first terminal receives the response message that send at said second terminal; Said response message is used for indication and need utilize said second sound signal that said first sound signal is carried out noise reduction; Said response message is when said second terminal confirms that interference is not caused to said first terminal in said second terminal, sends to said first terminal.

Aforesaid aspect and arbitrary possible implementation further provide a kind of implementation, and said first sound signal is the sound signal that said first terminal receives through main Mike; The 3rd sound signal is the sound signal that said first terminal receives through auxilliary Mike; Said method also comprises:

Said first terminal receives said the 3rd sound signal through auxilliary Mike; Said the 3rd sound signal is sent to said server; So that said server is according to said the 3rd sound signal and said second sound signal; Obtain the dampening information of said second sound signal, and the dampening information that utilizes said second sound signal and said second sound signal, said first sound signal is carried out noise reduction.

Second terminal receives the audio recording initiation command that send at first terminal, and said audio recording initiation command is that said first terminal sends to said second terminal when beginning to receive first sound signal;

Said second terminal is according to said audio recording initiation command, second sound signal that said second terminal of opening entry generates;

Said second terminal receives audio recording the finish command that send at said first terminal, and said audio recording the finish command is that said first terminal sends to said second terminal when finishing to receive said first sound signal;

Said second terminal is according to said audio recording the finish command, said second sound signal of end record;

Said second sound signal is sent to said first terminal in said second terminal, so that said first terminal utilizes said second sound signal that said first sound signal is carried out noise reduction; Perhaps

Said second terminal to server sends said second sound signal, so that said first sound signal that said second sound signal of said server by utilizing is sent said first terminal that receives is carried out noise reduction.

Aforesaid aspect and arbitrary possible implementation further provide a kind of implementation, and said second terminal receives before the audio recording initiation command that sends at first terminal, and also comprise: said second terminal and the said first terminal execution time are synchronous;

Aforesaid aspect and arbitrary possible implementation further provide a kind of implementation, and said second terminal also comprises according to before said second sound signal of said audio recording initiation command opening entry:

Said second terminal confirms whether said second terminal causes interference to said first terminal;

When interference is caused to said first terminal in said second terminal, judge the operation of carrying out according to said second sound signal of said audio recording initiation command opening entry;

When interference is not caused to said first terminal in said second terminal; Judge and do not carry out operation according to said second sound signal of said audio recording initiation command opening entry; And to said first terminal transmission response message, said response message is used for indication and need utilize said second sound signal that said first sound signal is carried out noise reduction.

Aforesaid aspect and arbitrary possible implementation further provide a kind of implementation, and said first sound signal is the sound signal that said first terminal receives through main Mike; Said method also comprises:

Said second terminal obtains the dampening information of said second sound signal according to the distance between said second terminal and said first terminal;

The dampening information of said second sound signal is sent to said first terminal in said second terminal, so that said first terminal utilizes the dampening information of said second sound signal and said second sound signal that said first sound signal is carried out noise reduction; Perhaps

The dampening information of said second sound signal is sent to said server in said second terminal, so that said first sound signal that the dampening information of said second sound signal of said server by utilizing and said second sound signal sends said first terminal that receives is carried out noise reduction.

The application provides a kind of terminal on the other hand, comprising:

Receiving element is used to receive first sound signal, and gives processing unit with said first audio signal transmission;

Transmitting element; When being used for said receiving element and beginning to receive first sound signal; Send the audio recording initiation command to second terminal, said audio recording initiation command is used to second sound signal of indicating said second terminal of the said second terminal opening entry to generate; And said receiving element sends audio recording the finish command to said second terminal when finishing to receive said first sound signal, and said audio recording the finish command is used to indicate said second sound signal of the said second terminal end record;

Said receiving element also is used to receive said second sound signal that has write down that send at said second terminal, and gives said processing unit with said second audio signal transmission;

Said processing unit is used to utilize said second sound signal that said first sound signal is carried out noise reduction.

Aforesaid aspect and arbitrary possible implementation further provide a kind of implementation, and said terminal also comprises lock unit, is used for

Before said receiving element begins to receive first sound signal, synchronous with the said second terminal execution time;

Aforesaid aspect and arbitrary possible implementation further provide a kind of implementation, and said receiving element specifically is used for

Receive said second terminal when judging that said second sound signal causes interference to first sound signal, said second sound signal that has write down of transmission.

Aforesaid aspect and arbitrary possible implementation further provide a kind of implementation, and said first sound signal is the sound signal that said first terminal receives through main Mike; The 3rd sound signal is the sound signal that said receiving element receives through auxilliary Mike;

Said receiving element also is used for

Receive said the 3rd sound signal through auxilliary Mike;

Said processing unit also is used for

According to said the 3rd sound signal and said second sound signal, obtain the dampening information of said second sound signal;

Said processing unit specifically is used for

Utilize the dampening information of said second sound signal and said second sound signal, said first sound signal is carried out noise reduction.

The application provides a kind of terminal on the other hand, comprising:

Receiving element is used to receive first sound signal, and gives transmitting element with said first audio signal transmission;

Said transmitting element; When being used for said receiving element and beginning to receive first sound signal; Send the audio recording initiation command to second terminal, said audio recording initiation command is used to second sound signal of indicating said second terminal of the said second terminal opening entry to generate; And said receiving element sends audio recording the finish command to said second terminal when finishing to receive said first sound signal, and said audio recording the finish command is used to indicate said second sound signal of the said second terminal end record;

Said transmitting element also is used for sending said first sound signal to server, so that said second sound signal of said server by utilizing is carried out noise reduction to said first sound signal.

Aforesaid aspect and arbitrary possible implementation further provide a kind of implementation,

Said terminal also comprises lock unit, is used for

Aforesaid aspect and arbitrary possible implementation further provide a kind of implementation, and said receiving element also is used for

Receive the response message that send at said second terminal; Said response message is used for indication and need utilize said second sound signal that said first sound signal is carried out noise reduction; Said response message is when said second terminal confirms that interference is not caused to said first terminal in said second terminal, sends to said first terminal.

Said receiving element also is used for

Receive said the 3rd sound signal through auxilliary Mike;

Said processing unit also is used for

Said processing unit specifically is used for

The application provides a kind of terminal on the other hand, comprising:

Receiving element; Be used to receive the audio recording initiation command that send at first terminal; Said audio recording initiation command is that said first terminal sends to said terminal when beginning to receive first sound signal, and said audio recording initiation command is transferred to processing unit;

Said processing unit is used for according to said audio recording initiation command, second sound signal that the said terminal of opening entry generates;

Said receiving element; Also be used to receive audio recording the finish command that send at said first terminal; And said audio recording the finish command is transferred to said processing unit, said audio recording the finish command is that said first terminal sends to said terminal when finishing to receive said first sound signal;

Said processing unit also is used for according to said audio recording the finish command, said second sound signal of end record, and give transmitting element with said second audio signal transmission;

Said transmitting element is used for

Send said second sound signal to said first terminal, so that said first terminal utilizes said second sound signal that said first sound signal is carried out noise reduction; Perhaps

Send said second sound signal to server, so that said first sound signal that said second sound signal of said server by utilizing is sent said first terminal that receives is carried out noise reduction.

Receive before the audio recording initiation command that sends at first terminal at said receiving element, synchronous with the said first terminal execution time;

Comprise initial time stamp in the said audio recording initiation command, said initial time stamp is used to time of indicating said second sound signal of said terminal records to begin;

Comprise the concluding time stamp in said audio recording the finish command, the said concluding time is stabbed the time that is used to indicate said second sound signal end of said terminal records.

Aforesaid aspect and arbitrary possible implementation further provide a kind of implementation, and said processing unit also is used for

Confirm whether said terminal causes interference to said first terminal;

When interference is caused to said first terminal in said terminal, judge the operation of carrying out according to said second sound signal of said audio recording initiation command opening entry;

When interference is not caused to said first terminal in said terminal; Judge and do not carry out operation according to said second sound signal of said audio recording initiation command opening entry; And to said first terminal transmission response message, said response message indication need not utilize said second sound signal that said first sound signal is carried out noise reduction.

Aforesaid aspect and arbitrary possible implementation further provide a kind of implementation, and said first sound signal is the sound signal that said first terminal receives through main Mike;

Said processing unit also is used for

According to the distance between said terminal and said first terminal, obtain the dampening information of said second sound signal;

Said transmitting element also is used for

Send the dampening information of said second sound signal to said first terminal, so that said first terminal utilizes the dampening information of said second sound signal and said second sound signal that said first sound signal is carried out noise reduction; Perhaps

Send the dampening information of said second sound signal to said server, so that said first sound signal that the dampening information of said second sound signal of said server by utilizing and said second sound signal sends said first terminal that receives is carried out noise reduction.

Can know by technique scheme; The application embodiment when beginning to receive first sound signal through first terminal, sends the audio recording initiation command to second terminal on the one hand; Said audio recording initiation command; Second sound signal that is used to indicate said second terminal of the said second terminal opening entry to generate, and audio recording the finish command is sent to said second terminal when finishing to receive said first sound signal in said first terminal; Said audio recording the finish command; Be used to indicate said second sound signal of the said second terminal end record, make said first terminal receive said second sound signal that has write down that send at said second terminal, and can utilize said second sound signal that said first sound signal is carried out noise reduction; Can avoid in the prior art owing to also voice signal has been carried out the problem of certain inhibition when noise suppressed, thereby improve sound quality and the reliability of noise reduction after the noise reduction.

Can know by technique scheme; The application embodiment when beginning to receive first sound signal through first terminal, sends the audio recording initiation command to second terminal on the other hand; Said audio recording initiation command; Second sound signal that is used to indicate said second terminal of the said second terminal opening entry to generate, and audio recording the finish command is sent to said second terminal when finishing to receive said first sound signal in said first terminal; Said audio recording the finish command; Be used to indicate said second sound signal of the said second terminal end record, said first terminal and then send said first sound signal to server is so that said server can utilize said second sound signal that said first sound signal is carried out noise reduction; Can avoid in the prior art owing to also voice signal has been carried out the problem of certain inhibition when noise suppressed, thereby improve sound quality and the reliability of noise reduction after the noise reduction.

Can know by technique scheme; The application embodiment on the other hand; Receive the audio recording initiation command that send at first terminal through second terminal; And according to said audio recording initiation command; Second sound signal that said second terminal of opening entry generates, said audio recording initiation command are that said first terminal sends to said second terminal when beginning to receive first sound signal, and said second terminal receives audio recording the finish command that send at said first terminal; And according to said audio recording the finish command; Said second sound signal of end record, said audio recording the finish command are that said first terminal sends to said second terminal when finishing to receive said first sound signal, said second terminal and then send said second sound signal to said first terminal or server; So that said first terminal can utilize said second sound signal that said first sound signal is carried out noise reduction; Said first sound signal that perhaps said server can utilize said second sound signal that said first terminal that receives is sent is carried out noise reduction, can avoid in the prior art owing to also voice signal has been carried out the problem of certain inhibition when noise suppressed, thereby improve sound quality and the reliability of noise reduction after the noise reduction.

Description of drawings

In order to be illustrated more clearly in the application embodiment or technical scheme of the prior art; To do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply; Obviously, the accompanying drawing in describing below is some embodiment of the application, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.

The schematic flow sheet of the noise-reduction method that Fig. 1 provides for the application one embodiment;

The schematic flow sheet of the noise-reduction method that Fig. 2 provides for another embodiment of the application;

The schematic flow sheet of the noise-reduction method that Fig. 3 provides for another embodiment of the application;

The structural representation at the terminal that Fig. 4 provides for another embodiment of the application;

The structural representation at the terminal that Fig. 5 provides for another embodiment of the application;

The structural representation at the terminal that Fig. 6 provides for another embodiment of the application;

The structural representation at the terminal that Fig. 7 provides for another embodiment of the application;

The structural representation at the terminal that Fig. 8 provides for another embodiment of the application;

The structural representation at the terminal that Fig. 9 provides for another embodiment of the application;

The structural representation at the terminal that Figure 10 provides for another embodiment of the application;

The structural representation at the terminal that Figure 11 provides for another embodiment of the application;

The structural representation at the terminal that Figure 12 provides for another embodiment of the application.

Embodiment

For the purpose, technical scheme and the advantage that make the application embodiment clearer; To combine the accompanying drawing among the application embodiment below; Technical scheme among the application embodiment is carried out clear, intactly description; Obviously, described embodiment is the application's part embodiment, rather than whole embodiment.Based on the embodiment among the application, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the application's protection.

In addition, term among this paper " and/or ", only be a kind of incidence relation of describing affiliated partner, can there be three kinds of relations in expression, for example, and A and/or B, can represent: individualism A exists A and B, these three kinds of situation of individualism B simultaneously.In addition, character "/" among this paper, generally represent forward-backward correlation to as if a kind of " or " relation.

The schematic flow sheet of the noise-reduction method that Fig. 1 provides for the application one embodiment, as shown in Figure 1.

When 101, first terminal begins to receive first sound signal, send the audio recording initiation command to second terminal, said audio recording initiation command is used to second sound signal of indicating said second terminal of the said second terminal opening entry to generate.

When 102, said first sound signal is finished to receive in said first terminal, send audio recording the finish command to said second terminal, said audio recording the finish command is used to indicate said second sound signal of the said second terminal end record.

103, said first terminal receives said second sound signal that has write down that send at said second terminal, utilizes said second sound signal that said first sound signal is carried out noise reduction.

Alternatively, in one of present embodiment possible implementation, the speech data that said first sound signal can include but not limited to be used for the speech data of voice-operated speech data, user speech conversation or be used for voice recording.

Alternatively, in one of present embodiment possible implementation, the signal noise in the time of can comprising said second sound signal in said first sound signal and arrive said first terminal through transmission medium.So; In 103, signal analysis specifically can be carried out to said first sound signal that receives in said first terminal, through after the signal analysis; Confirm to comprise said noise in said first sound signal; Then can utilize said second sound signal and said first sound signal to carry out noise reduction (being the noise reduction related operation), reducing the said noise that is comprised in said first sound signal, thereby can realize noise reduction.

Alternatively, in one of present embodiment possible implementation, the signal noise in the time of can not comprising said second sound signal in said first sound signal and arrive said first terminal through transmission medium.So; In 103; Signal analysis specifically can be carried out to said first sound signal that receives in said first terminal, through after the signal analysis, confirms not comprise said noise in said first sound signal; Then can utilize said second sound signal and said first sound signal to carry out noise reduction (being the noise reduction related operation); Owing to do not comprise said noise in said first sound signal, therefore the performed noise reduction in said first terminal then can not produce any influence to said first sound signal, to continue keeping said first sound signal not receive the influence of said second sound signal.

Alternatively, in one of present embodiment possible implementation, before said first terminal began to receive first sound signal, said first terminal can also be further synchronous with the said second terminal execution time.

Correspondingly, can also further comprise initial time stamp in the said audio recording initiation command, said initial time stamp is used to time of indicating said second sound signal of said second terminal records to begin; Can also further comprise the concluding time stamp in said audio recording the finish command, the said concluding time is stabbed the time that is used to indicate said second sound signal end of said second terminal records.

Alternatively; In one of present embodiment possible implementation, in 103, said first terminal; Specifically can receive said second terminal when judging that said second sound signal causes interference to first sound signal, said second sound signal that has write down of transmission.

Particularly, said second terminal can confirm specifically whether said second terminal causes interference to said first terminal; When interference is caused to said first terminal in said second terminal, judge the operation of carrying out according to said second sound signal of said audio recording initiation command opening entry; When interference is not caused to said first terminal in said second terminal; Judge and do not carry out operation according to said second sound signal of said audio recording initiation command opening entry; And to said first terminal transmission response message, said response message is used for indication and need utilize said second sound signal that said first sound signal is carried out noise reduction.

For example, said second terminal specifically can utilize body perception not technology or location technology, confirms whether said second terminal causes interference to said first terminal.Particularly; Said second terminal specifically can utilize body perception not technology or location technology; Judge that distance between said second terminal and said first terminal is whether less than the distance threshold that is provided with in advance; If be less than or equal to said distance threshold, the operation of execution according to said second sound signal of said audio recording initiation command opening entry then can be judged in said second terminal; If greater than said distance threshold, the operation of not carrying out according to said second sound signal of said audio recording initiation command opening entry then can be judged in said second terminal, and sends said response message to said first terminal.

Alternatively, in one of present embodiment possible implementation, said first terminal comprises main Mike and two Mikes of auxilliary Mike; In general, main Mike is arranged on the front at first terminal, for example; With the nearer place of user's generation organ; Auxilliary Mike is arranged on the back side at first terminal, for example, and the place far away with user's generation organ.Said first sound signal is the sound signal that said first terminal receives through main Mike, and the 3rd sound signal is the sound signal that said first terminal receives through auxilliary Mike.Said first terminal obtains the dampening information of said second sound signal then according to said the 3rd sound signal and said second sound signal.

Alternatively, in one of present embodiment possible implementation, the speech data that said the 3rd sound signal can include but not limited to be used for the speech data of voice-operated speech data, user speech conversation or be used for voice recording.Because main Mike is different with the residing position of auxilliary Mike; If user's generation organ and main Mike more near; So; Compare the included speech data that is used for voice-operated speech data, user speech conversation or to be used for the signal intensity of speech data of voice recording a little bit smaller in said the 3rd sound signal with the included signal intensity that is used for the speech data of voice-operated speech data, user speech conversation or is used for the speech data of voice recording in said first sound signal.

Correspondingly, in 103, said first terminal specifically can utilize the dampening information of said second sound signal and said second sound signal, and said first sound signal is carried out noise reduction.

In the present embodiment; When beginning to receive first sound signal through first terminal; Send the audio recording initiation command to second terminal, said audio recording initiation command is used to second sound signal of indicating said second terminal of the said second terminal opening entry to generate; And said first terminal is when finishing to receive said first sound signal; Send audio recording the finish command to said second terminal, said audio recording the finish command is used to indicate said second sound signal of the said second terminal end record; Make said first terminal receive said second sound signal that has write down that send at said second terminal; And can utilize said second sound signal that said first sound signal is carried out noise reduction, can avoid in the prior art owing to also voice signal has been carried out the problem of certain inhibition when noise suppressed, thereby improve sound quality and the reliability of noise reduction after the noise reduction.

The schematic flow sheet of the noise-reduction method that Fig. 2 provides for another embodiment of the application, as shown in Figure 2.

When 201, first terminal begins to receive first sound signal, send the audio recording initiation command to second terminal, said audio recording initiation command is used to second sound signal of indicating said second terminal of the said second terminal opening entry to generate.

When 202, said first sound signal is finished to receive in said first terminal, send audio recording the finish command to said second terminal, said audio recording the finish command is used to indicate said second sound signal of the said second terminal end record.

203, said first terminal to server sends said first sound signal, so that said second sound signal of said server by utilizing is carried out noise reduction to said first sound signal.

Wherein, said second sound signal is that said second terminal sends to said server after said second sound signal of end record.

Alternatively, in one of present embodiment possible implementation, the signal noise in the time of can comprising said second sound signal in said first sound signal and arrive said first terminal through transmission medium.So; Said server specifically can carry out signal analysis to said first sound signal that receives; Through after the signal analysis, confirm to comprise said noise in said first sound signal, then can utilize said second sound signal and said first sound signal to carry out noise reduction (being the noise reduction related operation); Reducing the said noise that is comprised in said first sound signal, thereby can realize noise reduction.

Alternatively, in one of present embodiment possible implementation, the signal noise in the time of can not comprising said second sound signal in said first sound signal and arrive said first terminal through transmission medium.So; Said server specifically can carry out signal analysis to said first sound signal that receives; Through after the signal analysis; Confirm not comprise said noise in said first sound signal, then can utilize said second sound signal and said first sound signal to carry out noise reduction (being the noise reduction related operation), owing to do not comprise said noise in said first sound signal; Therefore the performed noise reduction of said server then can not produce any influence to said first sound signal, to continue keeping said first sound signal not receive the influence of said second sound signal.

Alternatively, in one of present embodiment possible implementation, said first terminal comprises main Mike and two Mikes of auxilliary Mike; In general, main Mike is arranged on the front at first terminal, for example; With the nearer place of user's generation organ; Auxilliary Mike is arranged on the back side at first terminal, for example, and the place far away with user's generation organ.Said first sound signal is the sound signal that said first terminal receives through main Mike, and the 3rd sound signal is the sound signal that said first terminal receives through auxilliary Mike.Said first terminal then can send to said server with said the 3rd sound signal; So that said server is according to said the 3rd sound signal and said second sound signal; Obtain the dampening information of said second sound signal; And the dampening information that utilizes said second sound signal and said second sound signal, said first sound signal is carried out noise reduction.

In the present embodiment; When beginning to receive first sound signal through first terminal; Send the audio recording initiation command to second terminal, said audio recording initiation command is used to second sound signal of indicating said second terminal of the said second terminal opening entry to generate; And said first terminal is when finishing to receive said first sound signal; Send audio recording the finish command to said second terminal, said audio recording the finish command is used to indicate said second sound signal of the said second terminal end record; Said first terminal and then send said first sound signal to server; So that said server can utilize said second sound signal that said first sound signal is carried out noise reduction, can avoid in the prior art owing to also voice signal has been carried out the problem of certain inhibition when noise suppressed, thereby improve sound quality and the reliability of noise reduction after the noise reduction.

The schematic flow sheet of the noise-reduction method that Fig. 3 provides for another embodiment of the application, as shown in Figure 3.

301, second terminal receives the audio recording initiation command that send at first terminal, and said audio recording initiation command is that said first terminal sends to said second terminal when beginning to receive first sound signal.

302, said second terminal is according to said audio recording initiation command, second sound signal that said second terminal of opening entry generates.

303, said second terminal receives audio recording the finish command that send at said first terminal, and said audio recording the finish command is that said first terminal sends to said second terminal when finishing to receive said first sound signal.

304, said second terminal is according to said audio recording the finish command, said second sound signal of end record.

305, said second sound signal is sent to said first terminal in said second terminal, so that said first terminal utilizes said second sound signal that said first sound signal is carried out noise reduction; Perhaps

Alternatively, in one of present embodiment possible implementation, the signal noise in the time of can comprising said second sound signal in said first sound signal and arrive said first terminal through transmission medium.So; Said first terminal or said server specifically can carry out signal analysis to said first sound signal that receives; Through after the signal analysis, confirm to comprise said noise in said first sound signal, then can utilize said second sound signal and said first sound signal to carry out noise reduction (being the noise reduction related operation); Reducing the said noise that is comprised in said first sound signal, thereby can realize noise reduction.

Alternatively, in one of present embodiment possible implementation, the signal noise in the time of can not comprising said second sound signal in said first sound signal and arrive said first terminal through transmission medium.So; Said first terminal or said server specifically can carry out signal analysis to said first sound signal that receives; Through after the signal analysis; Confirm not comprise said noise in said first sound signal, then can utilize said second sound signal and said first sound signal to carry out noise reduction (being the noise reduction related operation), owing to do not comprise said noise in said first sound signal; Therefore said first terminal or the performed noise reduction of said server then can not produce any influence to said first sound signal, to continue keeping said first sound signal not receive the influence of said second sound signal.

Alternatively, in one of present embodiment possible implementation, before said first terminal began to receive first sound signal, said second terminal can also be further synchronous with the said first terminal execution time.

Alternatively; In one of present embodiment possible implementation; Before said second terminal was according to said second sound signal of said audio recording initiation command opening entry, said second terminal can also confirm further whether said second terminal causes interference to said first terminal; When interference was caused to said first terminal in said second terminal, said second terminal judges was carried out the operation according to said second sound signal of said audio recording initiation command opening entry; When interference is not caused to said first terminal in said second terminal; Said second terminal judges is not carried out the operation according to said second sound signal of said audio recording initiation command opening entry; And to said first terminal or said server transmission response message, said response message is used for indication and need utilize said second sound signal that said first sound signal is carried out noise reduction.

Alternatively, in one of present embodiment possible implementation, said second terminal can also obtain the dampening information of said second sound signal further according to the distance between said second terminal and said first terminal; Then; The dampening information of said second sound signal then can be sent to said first terminal in said second terminal, so that said first terminal utilizes the dampening information of said second sound signal and said second sound signal that said first sound signal is carried out noise reduction; Perhaps said second terminal then can be sent the dampening information of said second sound signal to said server, so that said first sound signal that the dampening information of said second sound signal of said server by utilizing and said second sound signal sends said first terminal that receives is carried out noise reduction.

For example, said second terminal specifically can utilize body perception not technology or location technology, confirms the distance between said second terminal and said first terminal, and obtains the dampening information of said second sound signal according to said distance.

In the present embodiment; Receive the audio recording initiation command that send at first terminal through second terminal; And according to said audio recording initiation command; Second sound signal that said second terminal of opening entry generates; Said audio recording initiation command is that said first terminal sends to said second terminal when beginning to receive first sound signal; And said second terminal receives audio recording the finish command that send at said first terminal, and according to said audio recording the finish command, said second sound signal of end record; Said audio recording the finish command is that said first terminal sends to said second terminal when finishing to receive said first sound signal; Said second terminal and then send said second sound signal to said first terminal or server, so that said first terminal can utilize said second sound signal that said first sound signal is carried out noise reduction, said first sound signal that perhaps said server can utilize said second sound signal that said first terminal that receives is sent is carried out noise reduction; Can avoid in the prior art owing to also voice signal has been carried out the problem of certain inhibition when noise suppressed, thereby improve sound quality and the reliability of noise reduction after the noise reduction.

Need to prove; For aforesaid each method embodiment, for simple description, so it all is expressed as a series of combination of actions; But those skilled in the art should know; The application does not receive the restriction of described sequence of movement, because according to the application, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in the instructions all belongs to preferred embodiment, and related action and module might not be that the application is necessary.

In the above-described embodiments, the description of each embodiment is all emphasized particularly on different fields, do not have the part that details among certain embodiment, can be referring to the associated description of other embodiment.

The structural representation at the terminal that Fig. 4 provides for another embodiment of the application, as shown in Figure 4, the terminal of present embodiment can comprise receiving element 41, transmitting element 42 and processing unit 43.Wherein, receiving element 41 is used to receive first sound signal, and gives processing unit 43 with said first audio signal transmission; Transmitting element 42; When being used for said receiving element 41 and beginning to receive first sound signal; Send the audio recording initiation command to said second terminal, said audio recording initiation command is used to second sound signal of indicating said second terminal of the said second terminal opening entry to generate; And said receiving element 41 sends audio recording the finish command to said second terminal when finishing to receive said first sound signal, and said audio recording the finish command is used to indicate said second sound signal of the said second terminal end record; Said receiving element 41 also is used to receive said second sound signal that has write down that send at said second terminal, and gives said processing unit 43 with said second audio signal transmission; Said processing unit 43 is used to utilize said second sound signal that said first sound signal is carried out noise reduction.

Alternatively; In one of present embodiment possible implementation, as shown in Figure 5, the terminal that present embodiment provides can further include lock unit 51; Be used for before said receiving element 41 begins to receive first sound signal, synchronous with the said second terminal execution time.

Alternatively; In one of present embodiment possible implementation; Said receiving element 41 can also further receive the response message that send at said second terminal; Said response message is used for indication and need utilize said second sound signal that said first sound signal is carried out noise reduction, and said response message is when said second terminal confirms that interference is not caused to said first terminal in said second terminal, sends to said first terminal.

Alternatively, in one of present embodiment possible implementation, said first sound signal is the sound signal that said receiving element 41 receives through main Mike; The 3rd sound signal is the sound signal that said receiving element 41 receives through auxilliary Mike; Said receiving element 41 can also further receive said the 3rd sound signal through auxilliary Mike, and gives said processing unit 43 with said the 3rd audio signal transmission; Correspondingly, said processing unit 43 can also obtain the dampening information of said second sound signal further according to said the 3rd sound signal and said second sound signal.Particularly; Said processing unit 43 specifically can utilize the dampening information of said second sound signal and said second sound signal; Said first sound signal is carried out noise reduction (being the noise reduction related operation); Reducing the said noise that is comprised in said first sound signal, thereby can realize noise reduction.

In the present embodiment; The terminal through transmitting element when receiving element begins to receive first sound signal; Send the audio recording initiation command to second terminal, said audio recording initiation command is used to second sound signal of indicating said second terminal of the said second terminal opening entry to generate; And said transmitting element is when said receiving element finishes to receive said first sound signal; Send audio recording the finish command to said second terminal, said audio recording the finish command is used to indicate said second sound signal of the said second terminal end record; And receive said second sound signal that has write down that send at said second terminal by said receiving element; Make processing unit can utilize said second sound signal that said first sound signal is carried out noise reduction, can avoid in the prior art owing to also voice signal has been carried out the problem of certain inhibition when noise suppressed, thereby improved sound quality and the reliability of noise reduction after the noise reduction.

The structural representation at the terminal that Fig. 6 provides for another embodiment of the application, as shown in Figure 6, the terminal of present embodiment can comprise receiving element 61 and transmitting element 62.Wherein, receiving element 61 is used to receive first sound signal, and gives transmitting element 62 with said first audio signal transmission; Said transmitting element 62; When being used for said receiving element 61 and beginning to receive first sound signal; Send the audio recording initiation command to said second terminal, said audio recording initiation command is used to second sound signal of indicating said second terminal of the said second terminal opening entry to generate; And said receiving element 61 sends audio recording the finish command to said second terminal when finishing to receive said first sound signal, and said audio recording the finish command is used to indicate said second sound signal of the said second terminal end record; Said transmitting element 62 also is used for sending said first sound signal to server, so that said second sound signal of said server by utilizing is carried out noise reduction to said first sound signal.

Alternatively; In one of present embodiment possible implementation, as shown in Figure 7, the terminal that present embodiment provides can further include lock unit 71; Be used for before said receiving element 61 begins to receive first sound signal, synchronous with the said second terminal execution time.

Alternatively, in one of present embodiment possible implementation, said terminal comprises main Mike and two Mikes of auxilliary Mike; In general, main Mike is arranged on the front at terminal, for example; With the nearer place of user's generation organ; Auxilliary Mike is arranged on the back side at terminal, for example, and the place far away with user's generation organ.Said first sound signal is the sound signal that said receiving element 61 receives through main Mike, and the 3rd sound signal is the sound signal that said receiving element 61 receives through auxilliary Mike; Said receiving element 61 can also further receive the 3rd sound signal through auxilliary Mike, and gives said transmitting element 62 with said the 3rd audio signal transmission.Said transmitting element 62 can also further send said the 3rd sound signal to said server; So that said server is according to said the 3rd sound signal and said second sound signal; Obtain the dampening information of said second sound signal; And the dampening information that utilizes said second sound signal and said second sound signal, said first sound signal is carried out noise reduction.

In the present embodiment; The terminal through transmitting element when receiving element begins to receive first sound signal; Send the audio recording initiation command to second terminal; Said audio recording initiation command, second sound signal that is used to indicate said second terminal of the said second terminal opening entry to generate, and said transmitting element is when said receiving element finishes to receive said first sound signal; Send audio recording the finish command to said second terminal; Said audio recording the finish command is used to indicate said second sound signal of the said second terminal end record, and sends said first sound signal by said transmitting element and then to server; So that said server can utilize said second sound signal that said first sound signal is carried out noise reduction; Said second sound signal is that said second terminal sends to said server after said second sound signal of end record, can avoid in the prior art owing to also voice signal has been carried out the problem of certain inhibition when noise suppressed, thereby improve sound quality and the reliability of noise reduction after the noise reduction.

The structural representation at the terminal that Fig. 8 provides for another embodiment of the application, as shown in Figure 8, the terminal of present embodiment can comprise receiving element 81, processing unit 82 and transmitting element 83.Wherein, Receiving element 81; Be used to receive the audio recording initiation command that send at first terminal, said audio recording initiation command is that said first terminal sends to said terminal when beginning to receive first sound signal, and said audio recording initiation command is transferred to processing unit 82; Said processing unit 82 is used for according to said audio recording initiation command, second sound signal that the said terminal of opening entry generates; Said receiving element 81; Also be used to receive audio recording the finish command that send at said first terminal; And said audio recording the finish command is transferred to said processing unit 82, said audio recording the finish command is that said first terminal sends to said terminal when finishing to receive said first sound signal; Said processing unit 82 also is used for according to said audio recording the finish command, said second sound signal of end record, and give transmitting element 83 with said second audio signal transmission; Said transmitting element 83 is used for sending said second sound signal to said first terminal, so that said first terminal utilizes said second sound signal that said first sound signal is carried out noise reduction; Perhaps send said second sound signal, so that said first sound signal that said second sound signal of said server by utilizing is sent said first terminal that receives is carried out noise reduction to server.

Alternatively; In one of present embodiment possible implementation; As shown in Figure 9; The terminal that present embodiment provides can further include lock unit 91, is used for before said receiving element 81 receives the audio recording initiation command that sends at first terminal, and is synchronous with the said first terminal execution time.

Correspondingly, can also further comprise initial time stamp in the said audio recording initiation command, said initial time stamp is used to time of indicating said second sound signal of said terminal records to begin; Can also further comprise the concluding time stamp in said audio recording the finish command, the said concluding time is stabbed the time that is used to indicate said second sound signal end of said terminal records.

Alternatively, in one of present embodiment possible implementation, said processing unit 82 can also confirm further whether said terminal causes interference to said first terminal; When interference is caused to said first terminal in said terminal, judge the operation of carrying out according to said second sound signal of said audio recording initiation command opening entry; When interference is not caused to said first terminal in said terminal; Judge and do not carry out operation according to said second sound signal of said audio recording initiation command opening entry; And generation response message; Said response message is transferred to said transmitting element 83, and said response message indication need not utilize said second sound signal that said first sound signal is carried out noise reduction.Correspondingly, 83 of said transmitting elements can send said response message to said first terminal or said server.

Alternatively; In one of present embodiment possible implementation; Said processing unit 82 can also be further according to the distance between said terminal and said first terminal; Obtain the dampening information of said second sound signal, and the dampening information of said second sound signal is transferred to said transmitting element 83; Correspondingly; 83 of said transmitting elements can send the dampening information of said second sound signal to said first terminal, so that said first terminal utilizes the dampening information of said second sound signal and said second sound signal that said first sound signal is carried out noise reduction; Perhaps send the dampening information of said second sound signal, so that said first sound signal that the dampening information of said second sound signal of said server by utilizing and said second sound signal sends said first terminal that receives is carried out noise reduction to said server.

In the present embodiment; The terminal receives the audio recording initiation command that send at first terminal through receiving element; And by processing unit according to said audio recording initiation command; Second sound signal that the said terminal of opening entry generates; Said audio recording initiation command is that said first terminal sends to said terminal when beginning to receive first sound signal; And said receiving element receives audio recording the finish command that send at said first terminal, and by said processing unit according to said audio recording the finish command, said second sound signal of end record; Said audio recording the finish command is that said first terminal sends to said terminal when finishing to receive said first sound signal; And then send said second sound signal to said first terminal or server by transmitting element, so that said first terminal can utilize said second sound signal that said first sound signal is carried out noise reduction, said first sound signal that perhaps said server can utilize said second sound signal that said first terminal that receives is sent is carried out noise reduction; Can avoid in the prior art owing to also voice signal has been carried out the problem of certain inhibition when noise suppressed, thereby improve sound quality and the reliability of noise reduction after the noise reduction.

The structural representation at the terminal that Figure 10 provides for another embodiment of the application, shown in figure 10, the terminal of present embodiment can comprise Mike 1001, transmitter 1002, receiver 1003 and one or more processor 1004.

Said Mike 1001 is used to receive first sound signal, and sends to said one or more processor 1004;

Said one or more processor 1004 is used for when said Mike 1001 begins to receive said first sound signal, generating the audio recording initiation command, and transfers to said transmitter 1002 and send; When said Mike 1001 finishes to receive said first sound signal, generate audio recording the finish command, and transfer to said transmitter 1002 and send; And receive second sound signal that receiver 1003 receives, and utilize said second sound signal that said first sound signal is carried out noise reduction;

Wherein, said audio recording initiation command is used to second sound signal of indicating said second terminal of the second terminal opening entry to generate; Said audio recording the finish command is used to indicate said second sound signal of the said second terminal end record;

Said transmitter 1002 is used for the instruction according to said one or more processors, sends said audio recording initiation command and said audio recording the finish command to said second terminal;

Said receiver 1003 is used to receive said second sound signal that has write down that send at said second terminal, and sends to said processor 1004.

Above-mentioned transmitter and receiver specifically can be radio frequency unit or WiFi module.

Alternatively, in one of present embodiment possible implementation, said processor 1004 can be further before said Mike 1001 begins to receive said first sound signal, and is synchronous with the said second terminal execution time.

Alternatively, in one of present embodiment possible implementation, said receiver 1003 specifically can receive said second terminal when judging that said second sound signal causes interference to first sound signal, said second sound signal that has write down of transmission.

Alternatively, in one of present embodiment possible implementation, said Mike comprises main Mike and two Mikes of auxilliary Mike; In general, main Mike is arranged on the front at terminal, for example; With the nearer place of user's generation organ; Auxilliary Mike is arranged on the back side at terminal, for example, and the place far away with user's generation organ.Said first sound signal is the sound signal that said main Mike receives, and the 3rd sound signal is the sound signal that said auxilliary Mike receives.That is to say that said main Mike is used to receive said first sound signal, and send to said one or more processor 1004; Said auxilliary Mike is used to receive said the 3rd sound signal, and sends to said one or more processor 1004.Said processor 1004 can also obtain the dampening information of said second sound signal further according to said the 3rd sound signal and said second sound signal.Particularly; Said processor 1004 specifically can utilize the dampening information of said second sound signal and said second sound signal; Said first sound signal is carried out noise reduction (being the noise reduction related operation); Reducing the said noise that is comprised in said first sound signal, thereby can realize noise reduction.

Alternatively, in one of present embodiment possible implementation, the terminal that present embodiment provides can further include storer, is used to store other unit or module and receives or information processed.

In the present embodiment, the terminal when Mike begins to receive first sound signal, generates the audio recording initiation command through processor; And transfer to transmitter and send; And when finishing to receive said first sound signal said Mike, generate audio recording the finish command, and transfer to said transmitter and send; Said audio recording initiation command; Be used to indicate second sound signal of the said second terminal opening entry said second terminal generation, said audio recording the finish command is used to indicate said second sound signal of the said second terminal end record; And receive said second sound signal that has write down that send at said second terminal by said receiver; Make processor can utilize said second sound signal that said first sound signal is carried out noise reduction, can avoid in the prior art owing to also voice signal has been carried out the problem of certain inhibition when noise suppressed, thereby improved sound quality and the reliability of noise reduction after the noise reduction.

The structural representation at the terminal that Figure 11 provides for another embodiment of the application, shown in figure 11, the terminal of present embodiment can comprise Mike 1101, transmitter 1102 and one or more processor 1103.

Said Mike 1101 is used to receive first sound signal, and sends to said one or more processor 1103;

Said one or more processor 1103 is used for when said Mike 1101 begins to receive said first sound signal, generating the audio recording initiation command, and transfers to said transmitter 1102 and send; When said Mike 1101 finishes to receive said first sound signal, generate audio recording the finish command, and transfer to said transmitter 1102 and send; And said first sound signal is transferred to said transmitter 1102 send;

Said transmitter 1102; Be used for instruction according to said one or more processors; Send said audio recording initiation command and said audio recording the finish command to said second terminal; And send said first sound signal to server, so that said second sound signal of said server by utilizing is carried out noise reduction to said first sound signal.

Above-mentioned transmitter specifically can be radio frequency unit or WiFi module.

Alternatively, in one of present embodiment possible implementation, said processor 1103 can be further before said Mike 1101 begins to receive said first sound signal, and is synchronous with the said second terminal execution time.

Alternatively, in one of present embodiment possible implementation, said Mike comprises main Mike and two Mikes of auxilliary Mike; In general, main Mike is arranged on the front at terminal, for example; With the nearer place of user's generation organ; Auxilliary Mike is arranged on the back side at terminal, for example, and the place far away with user's generation organ.Said first sound signal is the sound signal that said main Mike receives, and the 3rd sound signal is the sound signal that said auxilliary Mike receives.That is to say that said main Mike is used to receive said first sound signal, and send to said one or more processor 1103; Said auxilliary Mike is used to receive said the 3rd sound signal, and sends to said one or more processor 1103.Said processor 1103 can also further be transferred to said transmitter 1102 with said the 3rd sound signal and send.Correspondingly; Said transmitter 1102 can also be further according to the instruction of said one or more processors; Send said the 3rd sound signal to said server; So that said server according to said the 3rd sound signal and said second sound signal, obtains the dampening information of said second sound signal.Then; Said server specifically can utilize the dampening information of said second sound signal and said second sound signal; Said first sound signal is carried out noise reduction (being the noise reduction related operation), reducing the said noise that is comprised in said first sound signal, thereby can realize noise reduction.

In the present embodiment, the terminal when Mike begins to receive first sound signal, generates the audio recording initiation command through processor; And transfer to transmitter and send; And when finishing to receive said first sound signal said Mike, generate audio recording the finish command, and transfer to said transmitter and send; Said audio recording initiation command; Be used to indicate second sound signal of the said second terminal opening entry said second terminal generation, said audio recording the finish command is used to indicate said second sound signal of the said second terminal end record; And send said first sound signal to server by said transmitter; So that said second sound signal of said server by utilizing is carried out noise reduction to said first sound signal, can avoid in the prior art owing to also voice signal has been carried out the problem of certain inhibition when noise suppressed, thereby improve sound quality and the reliability of noise reduction after the noise reduction.

The structural representation at the terminal that Figure 12 provides for another embodiment of the application, shown in figure 12, the terminal of present embodiment can comprise receiver 1201, one or more processor 1202 and transmitter 1203.

Receiver 1201; Be used to receive the audio recording initiation command that send at first terminal; Said audio recording initiation command is that said first terminal sends to said terminal when beginning to receive first sound signal, and said audio recording initiation command is transferred to processor 1202;

Said processor 1202 is used for according to said audio recording initiation command, second sound signal that the said terminal of opening entry generates;

Said receiver 1201; Also be used to receive audio recording the finish command that send at said first terminal; And said audio recording the finish command is transferred to said processor 1202, said audio recording the finish command is that said first terminal sends to said terminal when finishing to receive said first sound signal;

Said processor 1202 also is used for according to said audio recording the finish command, said second sound signal of end record, and said second sound signal that will write down is transferred to transmitter 1203 transmissions;

Said transmitter 1203 is used for sending said second sound signal to said first terminal, so that said first terminal utilizes said second sound signal that said first sound signal is carried out noise reduction; Perhaps send said second sound signal, so that said first sound signal that said second sound signal of said server by utilizing is sent said first terminal that receives is carried out noise reduction to server.

Above-mentioned receiver and transmitter specifically can be radio frequency unit or WiFi module.

Alternatively, in one of present embodiment possible implementation, said processor 1202 can also be further before said receiver 1201 receives the audio recording initiation command that sends at first terminal, synchronous with the said first terminal execution time.

Alternatively, in one of present embodiment possible implementation, said processor 1202 can also confirm further whether said terminal causes interference to said first terminal; When interference is caused to said first terminal in said terminal, judge the operation of carrying out according to said second sound signal of said audio recording initiation command opening entry; When interference is not caused to said first terminal in said terminal; Judge and do not carry out operation according to said second sound signal of said audio recording initiation command opening entry; And generation response message; Said response message is transferred to said transmitter 1203 send, said response message indication need not utilize said second sound signal that said first sound signal is carried out noise reduction.Correspondingly, 1203 of said transmitters can send said response message to said first terminal or said server according to the instruction of said one or more processors.

Alternatively; In one of present embodiment possible implementation; Said processor 1202 can also be further according to the distance between said terminal and said first terminal; Obtain the dampening information of said second sound signal, and the dampening information of said second sound signal is transferred to said transmitter 1203 send; Correspondingly; 1203 of said transmitters can send the dampening information of said second sound signal to said first terminal, so that said first terminal utilizes the dampening information of said second sound signal and said second sound signal that said first sound signal is carried out noise reduction; Perhaps send the dampening information of said second sound signal, so that said first sound signal that the dampening information of said second sound signal of said server by utilizing and said second sound signal sends said first terminal that receives is carried out noise reduction to said server.

In the present embodiment; The terminal receives the audio recording initiation command that send at first terminal through receiver; And by processor according to said audio recording initiation command; Second sound signal that the said terminal of opening entry generates; Said audio recording initiation command is that said first terminal sends to said terminal when beginning to receive first sound signal; And said receiver receives audio recording the finish command that send at said first terminal, and by said processor according to said audio recording the finish command, said second sound signal of end record; Said audio recording the finish command is that said first terminal sends to said terminal when finishing to receive said first sound signal; And then send said second sound signal to said first terminal or server by transmitter, so that said first terminal can utilize said second sound signal that said first sound signal is carried out noise reduction, said first sound signal that perhaps said server can utilize said second sound signal that said first terminal that receives is sent is carried out noise reduction; Can avoid in the prior art owing to also voice signal has been carried out the problem of certain inhibition when noise suppressed, thereby improve sound quality and the reliability of noise reduction after the noise reduction.

The those skilled in the art can be well understood to, for the convenience described with succinct, the system of foregoing description, the concrete course of work of device and unit can repeat no more at this with reference to the corresponding process among the preceding method embodiment.

In several embodiment that the application provided, should be understood that, the system that is disclosed, apparatus and method can realize through other mode.For example, device embodiment described above only is schematically, for example; The division of said unit; Only be that a kind of logic function is divided, during actual the realization other dividing mode can be arranged, for example a plurality of unit or assembly can combine or can be integrated into another system; Or some characteristics can ignore, or do not carry out.Another point, the coupling each other that shows or discuss or directly coupling or communication to connect can be through some interfaces, the indirect coupling of device or unit or communication connect, and can be electrically, machinery or other form.

Said unit as separating component explanation can or can not be physically to separate also, and the parts that show as the unit can be or can not be physical locations also, promptly can be positioned at a place, perhaps also can be distributed on a plurality of NEs.Can realize the purpose of present embodiment scheme according to the needs selection some or all of unit wherein of reality.

In addition, each functional unit in each embodiment of the application can be integrated in the processing unit, also can be that the independent physics in each unit exists, and also can be integrated in the unit two or more unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, the form that also can adopt hardware to add SFU software functional unit realizes.

The above-mentioned integrated unit of realizing with the form of SFU software functional unit can be stored in the computer read/write memory medium.Above-mentioned SFU software functional unit is stored in the storage medium; Comprise that some instructions are with so that a computer equipment (can be a personal computer; Server, the perhaps network equipment etc.) or processor (processor) carry out the part steps of the said method of each embodiment of the application.And aforesaid storage medium comprises: USB flash disk, portable hard drive, ROM (read-only memory) (Read-Only Memory; Abbreviation ROM), various media that can be program code stored such as RAS (Random Access Memory is called for short RAM), magnetic disc or CD.

What should explain at last is: above embodiment is only in order to explanation the application's technical scheme, but not to its restriction; Although with reference to previous embodiment the application has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of each embodiment technical scheme of essence disengaging the application of relevant art scheme.

Claims

1. a noise-reduction method is characterized in that, comprising:

2. method according to claim 1 is characterized in that, said first terminal begins to receive before first sound signal, also comprises: said first terminal and the said second terminal execution time are synchronous;

3. method according to claim 1 and 2 is characterized in that, said first terminal receives said second sound signal that has write down that send at said second terminal, comprising:

4. according to the described method of the arbitrary claim of claim 1～3, it is characterized in that said first sound signal is the sound signal that said first terminal receives through main Mike; The 3rd sound signal is the sound signal that said first terminal receives through auxilliary Mike; Said first terminal utilizes said second sound signal that said first sound signal is carried out also comprising before the noise reduction:

Said first terminal receives said the 3rd sound signal through auxilliary Mike;

5. a noise-reduction method is characterized in that, comprising:

6. method according to claim 5 is characterized in that, said first terminal begins to receive before first sound signal, also comprises:

7. according to claim 5 or 6 described methods, it is characterized in that said first sound signal is the sound signal that said first terminal receives through main Mike; The 3rd sound signal is the sound signal that said first terminal receives through auxilliary Mike; Said method also comprises:

8. a noise-reduction method is characterized in that, comprising:

9. method according to claim 8 is characterized in that, said second terminal receives before the audio recording initiation command that sends at first terminal, and also comprise: said second terminal and the said first terminal execution time are synchronous;

10. according to Claim 8 or 9 described methods, it is characterized in that said second terminal also comprises according to before said second sound signal of said audio recording initiation command opening entry:

When interference was caused to said first terminal in said second terminal, said second terminal judges was carried out the operation according to said second sound signal of said audio recording initiation command opening entry;

When interference is not caused to said first terminal in said second terminal; Said second terminal judges is not carried out the operation according to said second sound signal of said audio recording initiation command opening entry; And to said first terminal or said server transmission response message, said response message is used for indication and need utilize said second sound signal that said first sound signal is carried out noise reduction.

11. the described method of arbitrary claim is characterized in that according to Claim 8～10, said method also comprises:

12. a terminal is characterized in that, comprising:

13. terminal according to claim 12 is characterized in that, said terminal also comprises lock unit, is used for

14., it is characterized in that said receiving element specifically is used for according to claim 12 or 13 described terminals

15., it is characterized in that said first sound signal is the sound signal that said receiving element receives through main Mike according to the described terminal of the arbitrary claim of claim 12～14; The 3rd sound signal is the sound signal that said receiving element receives through auxilliary Mike;

Said receiving element also is used for

Receive said the 3rd sound signal through auxilliary Mike, and give said processing unit said the 3rd audio signal transmission;

Said processing unit also is used for

Said processing unit specifically is used for

16. a terminal is characterized in that, comprising:

17. terminal according to claim 16 is characterized in that, said terminal also comprises lock unit, is used for

18., it is characterized in that said first sound signal is the sound signal that said receiving element receives through main Mike according to claim 16 or 17 described terminals; The 3rd sound signal is the sound signal that said receiving element receives through auxilliary Mike;

Said receiving element also is used for

Receive said the 3rd sound signal through auxilliary Mike, and give said transmitting element said the 3rd audio signal transmission;

Said transmitting element also is used for

Send said the 3rd sound signal to said server; So that said server is according to said the 3rd sound signal and said second sound signal; Obtain the dampening information of said second sound signal; And the dampening information that utilizes said second sound signal and said second sound signal, said first sound signal is carried out noise reduction.

19. a terminal is characterized in that, comprising:

Said transmitting element is used for

20. terminal according to claim 19 is characterized in that, said terminal also comprises lock unit, is used for

21., it is characterized in that said processing unit also is used for according to claim 19 or 20 described terminals

Confirm whether said terminal causes interference to said first terminal;

When interference is not caused to said first terminal in said terminal; Judge and do not carry out operation according to said second sound signal of said audio recording initiation command opening entry; And generation response message; Said response message is transferred to said transmitting element, and said response message indication need not utilize said second sound signal that said first sound signal is carried out noise reduction;

Said transmitting element also is used for

Send said response message to said first terminal or said server.

22., it is characterized in that said processing unit also is used for according to the described terminal of the arbitrary claim of claim 19～21

According to the distance between said terminal and said first terminal, obtain the dampening information of said second sound signal, and the dampening information of said second sound signal is transferred to said transmitting element;

Said transmitting element also is used for