CN105554202A - Microphone control method and device - Google Patents
Microphone control method and device Download PDFInfo
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- CN105554202A CN105554202A CN201510626371.5A CN201510626371A CN105554202A CN 105554202 A CN105554202 A CN 105554202A CN 201510626371 A CN201510626371 A CN 201510626371A CN 105554202 A CN105554202 A CN 105554202A
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Abstract
The embodiment of the invention discloses a microphone control method comprising the steps that when an application requiring to collecting sound is started, a microphone group is triggered to collect sound signals, and the microphone group includes at least two microphones; the sound signals collected by the main microphone of the microphone group are processed so that signal intensity is acquired; whether signal intensity is less than a first preset threshold is judged; and other microphones of the microphone group act as the main microphones if the judgment result is yes. Correspondingly, the embodiment of the invention also discloses a microphone control device. With application of the microphone control method and device, the sound signals collected by the auxiliary microphones act as voice input signals under the condition of failure of the main microphone so that voice sound quality can be enhanced.
Description
Technical field
The present invention relates to technical field of mobile terminals, particularly relate to a kind of control method and device of microphone.
Background technology
Existing mobile terminal, as mobile phone, PAD, notebook computer etc., usually multiple microphone is provided with, comprising main microphone and auxiliary microphone, the background noise volume that main microphone and auxiliary microphone gather is substantially identical, and the volume that the user voice volume gathered has about 6dB is poor, therefore, after the voice signal getting auxiliary microphone collection, generate compensating signal by decoding and noise treatment is carried out to the voice signal of main microphone pickup.When user carries out conversing or recording, if main microphone damages, or, because mobile terminal disposing way difference causes main microphone to block, if the voice signal gathered by main microphone in this situation, as voice input signal, will seriously reduce speech sound quality, reduce Consumer's Experience.
Summary of the invention
The embodiment of the present invention provides a kind of control method and device of microphone, can when main microphone lost efficacy, and voice signal auxiliary microphone gathered, as voice input signal, improves speech sound quality.
First aspect present invention provides a kind of control method of microphone, comprising:
When needing the application start gathering sound, trigger microphone group collected sound signal, described microphone group comprises at least two microphones;
Process voice signal that the main microphone in described microphone group collects to obtain signal strength signal intensity;
Judge whether described signal strength signal intensity is less than the first predetermined threshold value;
If so, then using other microphones in described microphone group as described main microphone.
Wherein, described other microphones in described microphone group to be comprised as described main microphone:
Target microphone is determined in other microphones in described microphone group;
Using described target microphone as described main microphone.
Wherein, determine that target microphone comprises in described other microphones in described microphone group:
Process the voice signal that other microphones in described microphone group collect, to obtain the signal strength signal intensity of voice signal described in each;
Obtain the target sound signal that signal strength signal intensity is maximum;
Microphone corresponding for described target sound signal is defined as described target microphone.
Wherein, after the target sound signal that described acquisition signal strength signal intensity is maximum, described method also comprises:
Judge whether the signal strength signal intensity of described target sound signal is more than or equal to the second predetermined threshold value;
If so, described step microphone corresponding for described target sound signal being defined as described target microphone is then performed.
Wherein, judge whether mobile terminal itself is in earphone mode of operation;
Described trigger microphone group collected sound signal comprises:
If described mobile terminal itself is in described earphone mode of operation, then trigger the described microphone group collected sound signal of the earphone be connected with described mobile terminal;
Otherwise, trigger the described microphone group collected sound signal that described mobile terminal is provided with.
Correspondingly, second aspect present invention provides a kind of control device of microphone, comprising:
Trigger module, for when needing the application start gathering sound, trigger microphone group collected sound signal, described microphone group comprises at least two microphones;
Processing module, the voice signal collected for the treatment of the main microphone in described microphone group is to obtain signal strength signal intensity;
Threshold value judgment module, for judging whether described signal strength signal intensity is less than the first predetermined threshold value;
Control module, if be less than described first predetermined threshold value for described signal strength signal intensity, then using other microphones in described microphone group as described main microphone.
Wherein, described control module comprises:
Screening unit, for determining target microphone in other microphones in described microphone group;
Control unit, for using described target microphone as described main microphone.
Wherein, described processing module also for:
Process the voice signal that other microphones in described microphone group collect, to obtain the signal strength signal intensity of voice signal described in each;
Described screening unit specifically for:
Obtain the target sound signal that signal strength signal intensity is maximum, and microphone corresponding for described target sound signal is defined as described target microphone.
Wherein, described threshold value judgment module also for:
Judge whether the signal strength signal intensity of described target sound signal is more than or equal to the second predetermined threshold value, if so, then trigger described screening unit and microphone corresponding for described target sound signal is defined as described target microphone.
Wherein, described device also comprises:
Mode decision module, for judging whether mobile terminal itself is in earphone mode of operation;
Described trigger module specifically for:
If described mobile terminal itself is in described earphone mode of operation, then trigger the described microphone group collected sound signal of the earphone be connected with described mobile terminal;
Otherwise, trigger the described microphone group collected sound signal that described mobile terminal is provided with.
Correspondingly, third aspect present invention additionally provides a kind of mobile terminal, comprises the part or all of of the control device of the microphone of second aspect.
Implement the present invention, there is following beneficial effect:
When needing the application start gathering sound, trigger microphone group collected sound signal, process voice signal that the main microphone in described microphone group collects to obtain signal strength signal intensity, judge whether described signal strength signal intensity is less than the first predetermined threshold value, if, explanation, main microphone in microphone group lost efficacy, then using other microphones in described microphone group as described main microphone, by auxiliary microphone as main microphone, voice signal auxiliary microphone gathered, as voice input signal, improves speech sound quality.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the flow chart of the control method of a kind of microphone that the embodiment of the present invention provides;
Fig. 2 is the flow chart of the control method of the another kind of microphone that the embodiment of the present invention provides;
Fig. 3 is the structural representation of the control device of a kind of microphone that the embodiment of the present invention provides;
Fig. 4 is the structural representation of a kind of control module that the embodiment of the present invention provides;
Fig. 5 is the structural representation of a kind of mobile terminal that the embodiment of the present invention provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In this part, first the concept that each embodiment all relates to is described.
The control method of the microphone in the embodiment of the present invention can be applied to the mobile terminals such as mobile phone, PAD or notebook computer, described mobile terminal has multiple microphone (i.e. microphone group), or described mobile terminal supports the earphone of multiple microphone.The embodiment of the present invention can the main microphone in microphone group when losing efficacy, and improves sound quality by auxiliary microphone.
Refer to Fig. 1, Fig. 1 is the flow chart of the control method of a kind of microphone that the embodiment of the present invention provides; Described method comprises as shown in Figure 1:
Step S110, when needing the application start gathering sound, trigger microphone group collected sound signal, described microphone group comprises at least two microphones.
Under normal circumstances, microphone can be used when opening talk application or recording application.Therefore, in embodiments of the present invention, when user's trigger call function or sound-recording function, then the application start needing to gather sound is thought, now with regard to trigger microphone group collected sound signal.
In specific implementation, mobile terminal can judge whether itself is in earphone mode of operation, if judgement itself is in earphone mode of operation, then triggers the microphone group collected sound signal of the earphone be connected with described mobile terminal; If the earphone be connected with described mobile terminal does not have microphone, or described mobile terminal is not in earphone mode of operation, then trigger the described microphone group collected sound signal that described mobile terminal is provided with.Described microphone group comprises a main microphone and at least one auxiliary microphone.
It should be noted that, how mobile terminal judges that itself whether being in earphone mode of operation is that those skilled in the art are intelligible, does not repeat them here.
Step S120, processes voice signal that the main microphone in described microphone group collects to obtain signal strength signal intensity.Described signal strength signal intensity can be the average energy value of the voice signal that main microphone collects within a period of time.Can be to be noted that the signal strength signal intensity how mobile terminal gets the voice signal of main microphone is that those skilled in the art are intelligible, not repeat them here.
Main microphone in described microphone group can be determined in the following manner:
Mode one: the volume of the voice signal that each microphone collects in more described microphone group, is defined as described main microphone by microphone corresponding for voice signal maximum for volume.Such as, described microphone group comprises microphone 1, microphone 2 and microphone 3, mobile terminal compares the volume of the voice signal that microphone 1, microphone 2 and microphone 3 collect respectively, if the volume of the voice signal that microphone 1 collects is maximum, then using microphone 1 as main microphone, if the volume of voice signal that microphone 2 collects is maximum, then using microphone 2 as main microphone, if the volume of the voice signal that microphone 3 collects is maximum, then using microphone 3 as main microphone.
Mode two, in more described microphone group, the definition of the voice signal that each microphone collects, is defined as described main microphone by microphone corresponding for voice signal the highest for definition.Such as, described microphone group comprises microphone 1, microphone 2 and microphone 3, mobile terminal compares the definition of the voice signal that microphone 1, microphone 2 and microphone 3 collect respectively, if the definition of the voice signal that microphone 1 collects is the highest, then using microphone 1 as main microphone, if the definition of the voice signal that microphone 2 collects is the highest, then using microphone 2 as main microphone, if the definition of the voice signal that microphone 3 collects is the highest, then using microphone 3 as main microphone.
Step S130, judges whether described signal strength signal intensity is less than the first predetermined threshold value.If described signal strength signal intensity is less than described predetermined threshold value, illustrate that the main microphone in described microphone group lost efficacy, then perform step S140; Otherwise, process ends.It should be noted that, the end mark in Fig. 1 represents that, after above-mentioned process, the control flow of microphone terminates, and the voice signal continuing to be gathered by main microphone is as voice input signal.
Described first predetermined threshold value can be an empirical value, just sets before mobile terminal dispatches from the factory, and certainly, user also can adjust described first predetermined threshold value.
Step S140, using other microphones in described microphone group as described main microphone.
Concrete, if described signal strength signal intensity is less than described predetermined threshold value, then using other microphones in described microphone group as described main microphone.
At the optional execution mode of one, mobile terminal can select arbitrarily a microphone as target microphone in other microphones in microphone group, and using described target microphone as described main microphone.
Further, mobile terminal using described target microphone as before main microphone, the voice signal of described target microphone can also be obtained, and process described voice signal to obtain the signal strength signal intensity of described target microphone, judge whether described signal strength signal intensity reaches the second predetermined threshold value, if so, just using described target microphone as described main microphone; Otherwise more described main microphone and signal strength signal intensity corresponding to described target microphone, be defined as main microphone by microphone larger for signal strength signal intensity.
In the optional execution mode of another kind, mobile terminal can process the voice signal that other microphones in described microphone group collect, to obtain the signal strength signal intensity of voice signal described in each, obtain the target sound signal that signal strength signal intensity is maximum, microphone corresponding for described target sound signal is defined as described target microphone, and using described target microphone as described main microphone.
Further, mobile terminal using described target microphone as before main microphone, can also judge whether the signal strength signal intensity of described target sound signal is more than or equal to the second predetermined threshold value, if so, just using described target microphone as described main microphone; Otherwise, directly notify that user's microphone group lost efficacy.
Wherein, described second predetermined threshold value can be greater than, be less than or equal to described first predetermined threshold value, and the present invention does not limit.
In the embodiment shown in fig. 1, when needing the application start gathering sound, trigger microphone group collected sound signal, process voice signal that the main microphone in described microphone group collects to obtain signal strength signal intensity, judge whether described signal strength signal intensity is less than the first predetermined threshold value, if, explanation, main microphone in microphone group lost efficacy, then using other microphones in described microphone group as described main microphone, by auxiliary microphone as main microphone, voice signal auxiliary microphone gathered is as voice input signal, improve speech sound quality.
Refer to Fig. 2, Fig. 2 is the flow chart of the control method of the another kind of microphone that the embodiment of the present invention provides; The embodiment of the present invention is for the control of the microphone of mobile terminal.Described method comprises as shown in Figure 2:
Step S210, when needing the application start gathering sound, the microphone group collected sound signal of triggering mobile terminals, described microphone group comprises at least two microphones.
Step S220, processes voice signal that the main microphone in described microphone group collects to obtain signal strength signal intensity.
Step S230, judges whether described signal strength signal intensity is less than the first predetermined threshold value.If described signal strength signal intensity is less than described predetermined threshold value, illustrate that the main microphone in the microphone group on mobile terminal lost efficacy, then perform step S240; Otherwise, process ends.It should be noted that, the end mark in Fig. 2 represents that, after above-mentioned process, the control flow of microphone terminates, and the voice signal continuing main microphone to gather is as voice input signal.
Step S240, processes the voice signal that other microphones in described microphone group collect, to obtain the signal strength signal intensity of voice signal described in each.
Step S250, obtains the target sound signal that signal strength signal intensity is maximum.
Step S260, judges whether the signal strength signal intensity of described target sound signal is more than or equal to the second predetermined threshold value.If so, then step S270 is performed.
Step S270, using described microphone corresponding for described target sound signal as main microphone.
In the embodiment shown in Figure 2, when needing the application start gathering sound, microphone group collected sound signal in triggering mobile terminals, process voice signal that the main microphone in described microphone group collects to obtain signal strength signal intensity, judge whether described signal strength signal intensity is less than the first predetermined threshold value, if, explanation, main microphone in microphone group lost efficacy, then using the target microphone in described microphone group as main microphone, namely the auxiliary microphone that tonequality is best, voice signal auxiliary microphone gathered is as voice input signal, improve speech sound quality.
Refer to Fig. 3, Fig. 3 is the structural representation of the control device of a kind of microphone that the embodiment of the present invention provides.The control device 3 of the microphone as shown in Figure 3 in the embodiment of the present invention at least can comprise trigger module 31, processing module 32, threshold value judgment module 33 and control module 34, wherein:
Trigger module 31, for when needing the application start gathering sound, trigger microphone group collected sound signal, described microphone group comprises at least two microphones;
Processing module 32, the voice signal collected for the treatment of the main microphone in described microphone group is to obtain signal strength signal intensity.
Threshold value judgment module 33, for judging whether described signal strength signal intensity is less than the first predetermined threshold value.
Control module 34, if be less than described first predetermined threshold value for described signal strength signal intensity, then using other microphones in described microphone group as described main microphone.
Described control module 34 further can comprise as shown in Figure 4:
Screening unit 341, for determining target microphone in other microphones in described microphone group;
Control unit 342, for using described target microphone as described main microphone.
Further, described processing module 32 can also process the voice signal that other microphones in described microphone group collect, to obtain the signal strength signal intensity of voice signal described in each, described screening unit 341 specifically can obtain the maximum target sound signal of signal strength signal intensity, and microphone corresponding for described target sound signal is defined as described target microphone.
Further, described threshold value judgment module 33 also for:
Judge whether the signal strength signal intensity of described target sound signal is more than or equal to the second predetermined threshold value, if so, then trigger described screening unit 341 and microphone corresponding for described target sound signal is defined as described target microphone.
Further, the control device 3 of described microphone can also comprise:
Mode decision module 35, for judging whether mobile terminal itself is in earphone mode of operation;
Described trigger module 31 specifically may be used for:
If described mobile terminal itself is in described earphone mode of operation, then trigger the described microphone group collected sound signal of the earphone be connected with described mobile terminal;
Otherwise, trigger the described microphone group collected sound signal that described mobile terminal is provided with.
Will be understood that, the function of each functional module of the control device 3 of the microphone of the present embodiment can according to the method specific implementation in said method embodiment, can the associated description of concrete corresponding reference diagram 1 and Fig. 2 embodiment of the method, repeats no more herein.
Refer to Fig. 5, Fig. 5 is the structural representation of a kind of mobile terminal that the embodiment of the present invention provides.Described mobile terminal 5 at least can comprise the control device 3 of above-mentioned microphone, and optionally, described mobile terminal 5 can also comprise microphone group, and described microphone group comprises at least two microphones; Or described mobile terminal 5 support package is containing the earphone of multiple microphone.
In the embodiment shown in fig. 5, when needing the application start gathering sound, mobile terminal trigger microphone group collected sound signal, process voice signal that the main microphone in described microphone group collects to obtain signal strength signal intensity, judge whether described signal strength signal intensity is less than the first predetermined threshold value, if, explanation, main microphone in microphone group lost efficacy, mobile terminal then using other microphones in described microphone group as described main microphone, i.e. auxiliary microphone, voice signal auxiliary microphone gathered is as voice input signal, improve speech sound quality.
It should be noted that, in the above-described embodiments, the description of each embodiment is all emphasized particularly on different fields in certain embodiment, there is no the part described in detail, can see the associated description of other embodiments.Secondly, those skilled in the art also should know, the embodiment described in specification all belongs to preferred embodiment, and involved action and module might not be that the embodiment of the present invention is necessary.
Step in embodiment of the present invention method can be carried out order according to actual needs and be adjusted, merges and delete.
Module in embodiment of the present invention device or unit can carry out merging, divide and deleting according to actual needs.
Module described in the embodiment of the present invention or unit, universal integrated circuit can be passed through, such as CPU (CentralProcessingUnit, central processing unit), or realized by ASIC (ApplicationSpecificIntegratedCircuit, application-specific integrated circuit (ASIC)).
One of ordinary skill in the art will appreciate that all or part of flow process realized in above-described embodiment method, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in a computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-OnlyMemory, ROM) or random store-memory body (RandomAccessMemory, RAM) etc.
Above disclosedly be only present pre-ferred embodiments, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained.
Claims (11)
1. a control method for microphone, is characterized in that, described method comprises:
When needing the application start gathering sound, trigger microphone group collected sound signal, described microphone group comprises at least two microphones;
Process voice signal that the main microphone in described microphone group collects to obtain signal strength signal intensity;
Judge whether described signal strength signal intensity is less than the first predetermined threshold value;
If so, then using other microphones in described microphone group as described main microphone.
2. the method for claim 1, is characterized in that,
Described other microphones in described microphone group to be comprised as described main microphone:
Target microphone is determined in other microphones in described microphone group;
Using described target microphone as described main microphone.
3. method as claimed in claim 2, is characterized in that,
Determine that target microphone comprises in described other microphones in described microphone group:
Process the voice signal that other microphones in described microphone group collect, to obtain the signal strength signal intensity of voice signal described in each;
Obtain the target sound signal that signal strength signal intensity is maximum;
Microphone corresponding for described target sound signal is defined as described target microphone.
4. method as claimed in claim 3, is characterized in that,
After the target sound signal that described acquisition signal strength signal intensity is maximum, described method also comprises:
Judge whether the signal strength signal intensity of described target sound signal is more than or equal to the second predetermined threshold value;
If so, described step microphone corresponding for described target sound signal being defined as described target microphone is then performed.
5. the method according to any one of claim 1-4, is characterized in that, described method also comprises:
Judge whether mobile terminal itself is in earphone mode of operation;
Described trigger microphone group collected sound signal comprises:
If described mobile terminal itself is in described earphone mode of operation, then trigger the described microphone group collected sound signal of the earphone be connected with described mobile terminal;
Otherwise, trigger the described microphone group collected sound signal that described mobile terminal is provided with.
6. a control device for microphone, is characterized in that, described device comprises:
Trigger module, for when needing the application start gathering sound, trigger microphone group collected sound signal, described microphone group comprises at least two microphones;
Processing module, the voice signal collected for the treatment of the main microphone in described microphone group is to obtain signal strength signal intensity;
Threshold value judgment module, for judging whether described signal strength signal intensity is less than the first predetermined threshold value;
Control module, if be less than described first predetermined threshold value for described signal strength signal intensity, then using other microphones in described microphone group as described main microphone.
7. device as claimed in claim 6, it is characterized in that, described control module comprises:
Screening unit, for determining target microphone in other microphones in described microphone group;
Control unit, for using described target microphone as described main microphone.
8. device as claimed in claim 7, is characterized in that,
Described processing module also for:
Process the voice signal that other microphones in described microphone group collect, to obtain the signal strength signal intensity of voice signal described in each;
Described screening unit specifically for:
Obtain the target sound signal that signal strength signal intensity is maximum, and microphone corresponding for described target sound signal is defined as described target microphone.
9. device as claimed in claim 8, is characterized in that, described threshold value judgment module also for:
Judge whether the signal strength signal intensity of described target sound signal is more than or equal to the second predetermined threshold value, if so, then trigger described screening unit and microphone corresponding for described target sound signal is defined as described target microphone.
10. the device any one of claim 6-9 as described in formula, is characterized in that, described device also comprises:
Mode decision module, for judging whether mobile terminal itself is in earphone mode of operation;
Described trigger module specifically for:
If described mobile terminal itself is in described earphone mode of operation, then trigger the described microphone group collected sound signal of the earphone be connected with described mobile terminal;
Otherwise, trigger the described microphone group collected sound signal that described mobile terminal is provided with.
11. 1 kinds of mobile terminals, is characterized in that, comprise the control device of microphone according to any one of claim 6-10.
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