CN109040378A - Method, apparatus and mobile terminal based on sound output element acquisition external sound wave - Google Patents
Method, apparatus and mobile terminal based on sound output element acquisition external sound wave Download PDFInfo
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- CN109040378A CN109040378A CN201811107396.4A CN201811107396A CN109040378A CN 109040378 A CN109040378 A CN 109040378A CN 201811107396 A CN201811107396 A CN 201811107396A CN 109040378 A CN109040378 A CN 109040378A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
Abstract
The invention discloses a kind of method, apparatus, mobile terminal and computer storage mediums based on sound output element acquisition external sound wave, this method is applied to mobile terminal, mobile terminal includes sound output element and sound input element and the sound output channel and environment acquisition access for being equipped with sound output element, this method comprises: control sound output element and voice input element form primary Ioops；When sound output element is not in sound output state, control sound output element is switched to environment acquisition access；It controls sound output element and acquires external environment acoustic signals；It obtains from the received audio signal of voice input element and audio signal and ambient sound waves signal is subjected to default processing.The problems such as can realizing the multiplexing functions of sound output element according to the technique and scheme of the present invention and save device cost, also utilize with voice input element and realize the functions such as de-noising, and then solving the additional hardware space layout for increasing device.
Description
Technical field
The present invention relates to the communications fields, in particular to a kind of side based on sound output element acquisition external sound wave
Method, device and mobile terminal.
Background technique
Continuous improvement with people to speech quality demand, mic (microphone, Mike present in mobile terminal
Wind) number be generally two or more, for recording call audio, another or multiple secondary mic then utilize diamylose by main mic
Principle of noise reduction realizes the speech denoising in communication process, so that it is also ensured that matter of preferably conversing under noisy environment
Amount.However, this makes mobile terminal generally require additionally to increase on the basis of main mic secondary mic to realize diamylose noise reduction, not only
Device cost is increased, and needs additional space to place the increased secondary mic, is unfavorable for hardware arrangement etc..
Summary of the invention
In view of the above problems, the present invention provides a kind of method based on sound output element acquisition external sound wave, pass through
External sound signal is acquired using existing sound output element and carries out respective handling, can solve to need volume in the prior art
Outer increase voice input element is come the problems such as realizing diamylose noise reduction.
An embodiment of the invention provides a kind of method based on sound output element acquisition external sound wave, the base
In sound output element acquisition external sound wave method be applied to mobile terminal, the mobile terminal include sound output element and
Voice input element, the mobile terminal is equipped with the sound output channel of the sound output element and environment acquires access, institute
The method of stating includes:
It controls the sound output element and the voice input element forms primary Ioops；
When the sound output element is not in sound output state, control the sound output element be switched to it is described
Environment acquires access；
Control the sound output element acquisition external environment acoustic signals；
It obtains and comes from the received audio signal of voice input element, and by the audio signal and the ambient sound waves
Signal carries out default processing.
In the above-mentioned method based on sound output element acquisition external sound wave, optionally, the mobile terminal includes place
Device and ADC converting unit are managed,
The sound output element, the ADC converting unit and the processor are successively electrically connected to establish the ring
Border acquires access, and configures the one of the environment acquisition access between the ADC converting unit and the processor and control and lead to
Road.
In the above-mentioned method based on sound output element acquisition external sound wave, optionally, further includes:
The ambient sound waves signal collected to the sound output element is sent into the ADC turns after amplifying conditioning
Change unit.
In the above-mentioned method based on sound output element acquisition external sound wave, optionally, the default processing includes: pair
The audio signal and the ambient sound waves signal carry out denoising to obtain the audio signal after a de-noising.
In the above-mentioned method based on sound output element acquisition external sound wave, optionally, the denoising includes,
The ambient sound waves signal is sent into difference amplifier with the audio signal simultaneously and carries out Signal averaging to obtain
One amendment audio signal, and the amendment audio signal is amplified into filtering processing, to obtain the letter of the audio after the de-noising
Number.
Another embodiment of the invention provides a kind of device based on sound output element acquisition external sound wave, described
Device based on sound output element acquisition external sound wave is applied to mobile terminal, and the mobile terminal includes sound output element
With sound input element, the mobile terminal is equipped with the sound output channel of the sound output element and environment acquires access,
Described device includes:
Circuit control module forms primary Ioops for controlling the sound output element and the voice input element；
Access switching module, for keeping the sound defeated when the sound output element is not in sound output state
Element is switched to the environment acquisition access out；
Acquisition control module, for when being switched to the environment acquisition access, making the sound output element acquisition outer
Boundary's ambient sound waves signal；
Signal processing module, for obtaining from the received audio signal of the voice input element and believing the audio
Number and the ambient sound waves signal carry out default processing.
Another embodiment of the invention provides a kind of mobile terminal, the mobile terminal include controller, memory,
Voice input element and sound output element, the mobile terminal are equipped with the sound output channel and ring of the sound output element
Border acquires access,
The memory is implemented when the controller is for executing the computer program for storing computer program
The method based on sound output element acquisition external sound wave stated.
Yet further embodiment of the invention provides a kind of computer storage medium, computer program is stored, described
Computer program is performed, and is implemented according to the above-mentioned method based on sound output element acquisition external sound wave.
Technical solution of the present invention acquires access by establishing the environment of sound output element, is exported with realizing using sound
Element acquires extraneous acoustic signals, realizes the multiplexing of sound output element, achievees the purpose that saving components cost；It is also logical
Cross with voice input element formed primary Ioops, can be used for conversing de-noising and interactive voice when improve the functions such as anti-interference, can also solve
Certainly the problems such as space layout brought by de-noising are realized because increasing additional voice input element.
Detailed description of the invention
In order to illustrate more clearly of technical solution of the present invention, letter will be made to attached drawing needed in the embodiment below
It singly introduces, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as to the present invention
The restriction of protection scope.
Fig. 1 is the structural schematic diagram of mobile terminal provided in an embodiment of the present invention；
Fig. 2 is the hardware configuration signal of the method that external sound wave is acquired based on sound output element of the embodiment of the present invention 1
Figure；
Fig. 3 is the flow diagram of the method that external sound wave is acquired based on sound output element of the embodiment of the present invention 1；
Fig. 4 is the de-noising application signal of the method that external sound wave is acquired based on sound output element of the embodiment of the present invention 1
Figure；
Fig. 5 is the structural schematic diagram of the device that external sound wave is acquired based on sound output element of the embodiment of the present invention 2.
Main element symbol description:
100- mobile phone；110- radio circuit；120- memory；130- input unit；140- display unit；150- shooting is single
Member；160- voicefrequency circuit；170- wireless fidelity module；180- processor；190- power supply；A- sound output channel；B- environment is adopted
Collect access；Device of the 20- based on sound output element acquisition external sound wave；200- circuit control module；210- access switches mould
Block；220- acquisition control module；230- signal processing module.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
The component of the embodiment of the present invention being described and illustrated herein in the accompanying drawings can be arranged with a variety of different configurations
And design.Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Following each embodiments can be applied to mobile terminal as shown in Figure 1, such as mobile phone, and Fig. 1 shows the knot of the mobile phone
Structure block diagram, the mobile phone 100 include: radio frequency (Radio Frequency, RF) circuit 110, memory 120, input unit 130, show
Show unit 140, shooting unit 150, voicefrequency circuit 160, Wireless Fidelity (wireless fidelity, WiFi) module 170, place
Manage the components such as device 180 and power supply 190.Wherein, radio circuit 110 can be used for sending and receiving wireless signal etc.；Memory
120, which can be used for storing the mobile phone 100, runs the required associated documents information of application program and user etc..Input unit 130 can
It also may include other input equipments etc. including key, touch panel, for receiving the information etc. from user's input；It is aobvious
Show that unit 140 may include display panel, is mainly used for showing the information such as image, text；Shooting unit 150 mainly includes front and back
Camera etc. is set, is mainly used for shooting picture, video etc.；Voicefrequency circuit 160 connect earpiece, the audio output devices such as loudspeaker with
And the audio input devices such as microphone, can be used for typing or play voice etc.；Wireless fidelity module 170 can be used for receiving and dispatching wifi letter
Number with realize information transmission etc..Control centre of the processor 180 as mobile phone 100 is mainly used for making other each units or module
Execute corresponding function etc.；And power supply 190 mainly include battery apparatus, for in mobile phone 100 each module or unit institute is provided
The operating voltage etc. needed.
It will be understood by those skilled in the art that 100 structure of mobile phone shown in Fig. 1 does not constitute the restriction to mobile phone, it can
To include perhaps combining certain components or different component layouts than illustrating more or fewer components.It is with mobile phone below
Example illustrates technical solution of the present invention, certainly, the present invention is not limited to be applied to mobile phone, also can be applied to tablet computer etc..
In the terminal, sound output element is mainly by the structure compositions such as vibrating diaphragm, coil and magnet, working principle master
When including: that the audio electrical signal exported inside mobile terminal passes through the coil in sound output element, so that coil generates
Magnetic field change, and then drive vibration vibration of membrane to excite the vibration of surrounding air, to issue sound wave.And for sound
Input element, structure equally include the structures such as vibrating diaphragm, coil and magnet, and working principle is specifically included that when external sound wave is led
When causing the vibrating diaphragm vibration in voice input element, the mechanical oscillation of vibrating diaphragm at this time will drive the vibration of Inside coil, the vibration of coil
It is dynamic that magnetic field will be made to send variation, and then generate current signal and be sent into inside and carry out the processing such as digitizing, to realize extraneous sound
The acquisition of sound.
In view of the structure of sound output element is similar to the structure of voice input element, and its working principle is on the contrary, originally
Invention proposes a kind of method based on sound output element acquisition external sound wave.The present invention is introduced with specific embodiment below,
Certainly, the present invention is not limited to these specific embodiments.
Embodiment 1
The present embodiment proposes a kind of method based on sound output element acquisition external sound wave, should be based on sound output element
The method of acquisition external sound wave can be applied to mobile terminal, such as mobile phone, tablet computer, wherein the mobile terminal usually wraps
Include sound output element and sound input element.
Generally, the mobile terminal is typically provided with the sound output channel of the sound output element, sound output
Access can be used for sending internal audio signal to the sound output element and export sound outward.In the present invention, to make
Sound output element can be used to acquire external sound wave, and the environment that sound output element can be also equipped in the mobile terminal acquires
Access, acquiring access by the environment can will be located inside collected external sound wave signal feeding mobile terminal and accordingly
Reason.
Referring to figure 2., the mobile terminal includes processor 180 and voicefrequency circuit 160, and voicefrequency circuit 160 includes ADC
Converting unit and DAC converting unit are formed shown in Fig. 2 since sound output element is usually only connect with DAC converting unit
Sound output channel A.The DAC converting unit can be used for for internal digital audio and video signals being converted into analog signal and by being somebody's turn to do
Sound output channel A is sent to sound output element to be exported.Exemplarily, the voicefrequency circuit 160 can set for sound card etc.
It is standby.
And in the present embodiment, as shown in Fig. 2, sound output element is also electrically connected to the ADC converting unit simultaneously, with
And corresponding control access is configured between ADC converting unit and processor 180 to form the environment acquisition access B.Demonstration
Property, the control access is mainly used for selecting the control logic of ADC converting unit.Then, when needing using sound
When output element carries out external sound wave signal acquisition, environment acquisition access B is opened in the control of processor 180 and to close sound defeated
Access A out is read to acquire access B by environment by the collected external sound wave signal of sound output element.It should be appreciated that
Sound output channel A and environment acquisition access B are not simultaneously in selection state, i.e., when sound output channel A is in output sound
When, processor 180 controls environment acquisition access B and is in close state；And when sound output channel A does not export sound, place
It is in the open state to manage the control environment acquisition of device 180 access B, to acquire extraneous ambient sound.
In view of the upper layer application of mobile terminal is to the calling of sound output element acquisition external sound wave signal, can lead to
It crosses and interface encapsulation is carried out to the control logic of the ADC converting unit, and the interface is adjusted by upper level applications
With so as to realize the selection of the environment acquisition access B.Meanwhile it can also create a PCM capture equipment and distribute one
Device id is with the application scenarios of the collected acoustic signals of sound output element for unique identification, the PCM
Capture equipment is a virtual device file of sound output element creation, can be used for storing the sound output element
The PCM data etc. obtained after collected acoustic signals conversion.Wherein, when needing to handle the PCM data, correspondingly
It can be operated by PCM read and obtain the PCM data from the PCM capture equipment or will be converted by PCM write operation
The new PCM data obtained afterwards is written in the PCM capture equipment etc..
Exemplarily, by taking ALSA audio framework common in mobile terminal as an example, a large amount of sound is contained in ALSA framework
The open source of frequency equipment drives and corresponding ALSA standard interface, when the control logic to the ADC converting unit has carried out ALSA
It, can be defeated to the ADC converting unit and sound of bottom by calling the interface after the encapsulation can be realized after the encapsulation of standard interface
The access of element out.It is, of course, also possible to be that ADC converting unit and sound output element configure a data and lead to by audio-frequency bus
Road is the processing such as to be stored or be called for the sonic data acquired and after converting to be sent to upper level applications.The present embodiment
In, the audio-frequency bus may include but be not limited to as I2S bus, Slimbus bus etc..
Preferably, it is contemplated that the collected analog electrical signal of sound output element may be fainter, can be defeated to the sound
The collected analog signal of element is re-fed into ADC converting unit after amplification conditioning and is converted out.It specifically, can be in ADC
The corresponding amplification conditioning circuit of setting between converting unit and the sound output element, for being sent again after amplifying processing
Enter ADC converting unit and carries out digital conversion.By the conditioning such as collected analog signal being amplified, being filtered, it can be ensured that should
Analog signal successfully can be identified and be handled by ADC converting unit, to improve the accuracy and reliability of acquisition.
Referring to figure 3., sound output channel A based on above-mentioned sound output element and environment acquire access B, below it is right
The acquisition method of external sound wave based on sound output element is described in detail.
Step S100: control sound output element and voice input element form primary Ioops.
When needing using sound output element acquisition external sound signal, processor 180 can control sound output element
Primary Ioops are formed with voice input element, then after forming circuit, voice input element is mainly used for receiving extraneous audio
Signal, and sound output element is mainly used for transmitting audio signal outward.For example, the circuit can be in communication process and establish
Talking path, i.e., in call, such as microphone voice input element can be used for receiving audio signal when call；And sound
Sound output element, such as transmitter or loudspeaker can be used for exporting the sound of the partner received by sound output channel A
Frequency signal.It is appreciated that the circuit should be not limited to above-mentioned call reply, it is also possible to as formed when voice interface
Dialogue reply etc..
Step S110: when the sound output element is not in sound output state, the sound output element is controlled
It is switched to the environment acquisition access.
When sound output element is exporting sound, then its environment acquisition access B will be in close state, and work as the sound
When sound output element is not in sound output state, processor 180 will control sound output element and be switched by sound output channel A
Access B is acquired for starting to acquire external sound wave signal to the environment.Still by taking above-mentioned talking path as an example, when sound is defeated
When element is transmitting the sound of partner out, then the sound output element will be in sound output channel A；And it is sound is defeated
When element does not make a sound out, it will be switched to environment acquisition access B at this time.
Step S120: the sound output element acquisition external environment acoustic signals are controlled.
After being switched to environment acquisition access B, processor 180 will control sound output element and start the extraneous sound wave of acquisition
Signal.Specifically, processor 180 will select the ADC to convert single by selecting the environment to acquire the control access of access
The control logic of member receives and converts the ambient sound waves signal of sound output element acquisition to control ADC converting unit.
Step S130: it obtains and comes from the received audio signal of voice input element, and by the audio signal and institute
It states ambient sound waves signal and carries out default processing.
Voice input element will constantly receive extraneous audio signal after circuit is formed, then when sound exports member
After part collects external sound wave signal, processor 180 will export the collected audio signal of voice input element and sound
Element collects acoustic signals and performs corresponding processing together.
By taking above-mentioned talk application as an example, the default processing can be call denoising.When external environment noise compared with
When big, the collected audio signal of voice input element mainly includes call voice signal, but has generally included environmental noise letter
Number, therefore speech quality tends to be a greater impact, for this reason, it is necessary to speech denoising processing be carried out in communication process to protect
Card still has preferable speech quality when external environment is noisy.Specifically, voice input element is by collected audio signal,
And sound output element will collect extraneous acoustic signals after being switched to environment acquisition access B.Then processor 180 is by institute
It states audio signal and the external sound wave signal is sent into denoising unit together and carries out denoising.
Preferably, when realizing speech denoising using the sound output element and voice input element, the sound is defeated
Element should be isolated with voice input element or have a certain distance out, can prevent the collected audio of voice input element
Signal and the collected acoustic signals of sound output element are essentially identical, such that normal call language when Signal averaging
Sound signal is also partially offset.
In the present embodiment, can according to the principle of diamylose de-noising by the call audio signal and the ambient sound waves signal into
Output one is corrected audio signal, by the way that the amendment audio signal is amplified filtering processing by row signal subtraction and amplification
Afterwards, the audio signal after final de-noising can be obtained then exports the audio signal after the de-noising to reach de-noising effect
Fruit.
Exemplarily, as shown in figure 4, what the audio signal of voice input element acquisition and sound output element acquired
Include that there are two types of signals in the ambient sound waves signal, is call voice signal and environmental noise signal respectively.In view of
In communication process, user converses mainly close to voice input element, therefore the collected call voice letter of voice input element
Number often call voice signal is collected much larger than sound output element.
Then, when the call audio signal and the ambient sound waves signal are sent into the de-noising in processor 180 simultaneously
When the in-phase end and reverse side of the difference amplifier in processing module, for collected identical background noise part,
Background noise described in Signal averaging by two paths of signals will be cancelled, and the difference signal retained is then more visible repairs
Positive audio signal.Processing is then amplified etc. to the amendment audio signal, and exports the audio after finally obtained de-noising
Signal.Wherein, the diamylose denoising principle is from " sound wave superposition is mutually supported " principle, since the propagation of sound is by medium
It vibrates to realize, the waveform between Ruo Bo and wave is in reverse phase, then counteracting will be will do it.
Optionally, if it is more for ought having the sound output element of sound output channel A and environment acquisition access B simultaneously
When a, it can call other sound output elements when a sound output element is occupied and not have to toggle again occupied
Sound output element access.In the present embodiment, voice input element can be then the microphone for receiving sound, and described
Sound output element can be transmitter and/or loudspeaker.For example, the transmitter and loudspeaker worked as in mobile terminal have had been established
When the environment acquisition access B, if transmitter and voice input element form primary Ioops, the external world is carried out using loudspeaker
Acoustic Signal Acquisition.Similarly, if loudspeaker is occupied, the acquisition of external sound wave signal is carried out using transmitter.
The method of external sound wave is acquired based on sound output element, it can be achieved that exporting member to sound by what this implementation proposed
The multiplexing functions of part simultaneously reduce device cost.Meanwhile also with voice input element forming circuit and on the basis of the circuit,
Such as call de-noising application is further realized, additional increased voice input can be not only replaced with existing sound output element
Element carries out the acquisition of environmental noise signal, can also solve to the full extent because additionally increasing new voice input element institute band
The problems such as space layout come.Certainly, based on the sound output element environment acquisition access and with voice input element
Circuit, can with but be not exclusively for such as interactive voice game and improve the other applications such as anti-interference ability.
Embodiment 2
Referring to figure 5., based on the above embodiment 1, the present embodiment provides one kind to acquire extraneous sound based on sound output element
The device 20 of wave, the device 20 based on sound output element acquisition external sound wave is applied to mobile terminal, described mobile whole
End includes sound output element and sound input element, and the sound output that the mobile terminal is equipped with the sound output element is logical
Road, the mobile terminal are additionally provided with the environment acquisition access, and described device includes:
Circuit control module 200 forms primary Ioops for controlling the sound output element and the voice input element；
Access switching module 210, for making the sound when the sound output element is not in sound output state
Output element is switched to the environment acquisition access；
Acquisition control module 220, for acquiring the sound output element when being switched to the environment acquisition access
External environment acoustic signals；
Signal processing module 230, for obtaining from the received audio signal of the voice input element and by the sound
Frequency signal and the ambient sound waves signal carry out default processing.
The above-mentioned device 20 based on sound output element acquisition external sound wave corresponds to exporting based on sound for embodiment 1
The method of element acquisition external sound wave.Any option in embodiment 1 is also applied for the present embodiment, and I will not elaborate.
The present invention also provides a kind of mobile terminal, which may include smart phone, tablet computer etc., movement
Terminal is preferably smart phone, tablet computer.The mobile terminal may include processor, memory, voice input element and sound
Output element, which is equipped with the sound output channel of sound output element and environment acquires access.Wherein, memory can
For storing computer program, processor is by running the computer program, to keep mobile terminal execution above-mentioned based on sound
Sound output element acquires each in the method or the above-mentioned device based on sound output element acquisition external sound wave of external sound wave
The function of a module.
Further, mobile terminal further include: ADC converting unit, sound output element, ADC converting unit and processing
Device is successively electrically connected to establish the environment acquisition access, and the environment is configured between ADC converting unit and processor
Acquire a control access of access.
Further, mobile terminal further include: amplification conditioning circuit, the amplification conditioning circuit are set to ADC converting unit
Between sound output element, the ambient sound waves signal for acquiring to sound output element is sent into ADC conversion after amplifying
Unit.
Wherein, memory may include storing program area and storage data area, wherein storing program area can store operation system
Application program needed for system, at least one function；Storage data area, which can be stored, uses created data according to mobile terminal
(such as audio data, phone directory etc.) etc..In addition, memory may include high-speed random access memory, it can also include non-
Volatile memory, for example, at least a disk memory, flush memory device or other volatile solid-state parts.
The present invention also provides a kind of computer storage mediums, for storing the calculating used in above-mentioned mobile terminal
Machine program.
In several embodiments provided herein, it should be understood that disclosed device and method can also pass through
Other modes are realized.The apparatus embodiments described above are merely exemplary, for example, flow chart and structure in attached drawing
Figure shows the system frame in the cards of the device of multiple embodiments according to the present invention, method and computer program product
Structure, function and operation.In this regard, each box in flowchart or block diagram can represent a module, section or code
A part, a part of the module, section or code includes one or more for implementing the specified logical function
Executable instruction.
It should also be noted that function marked in the box can also be attached to be different from the implementation as replacement
The sequence marked in figure occurs.For example, two continuous boxes can actually be basically executed in parallel, they sometimes may be used
To execute in the opposite order, this depends on the function involved.It is also noted that every in structure chart and/or flow chart
The combination of a box and the box in structure chart and/or flow chart, can function or movement as defined in executing it is dedicated
Hardware based system is realized, or can be realized using a combination of dedicated hardware and computer instructions.
In addition, each functional module or unit in each embodiment of the present invention can integrate one independence of formation together
Part, be also possible to modules individualism, an independent part can also be integrated to form with two or more modules.
It, can be with if the function is realized and when sold or used as an independent product in the form of software function module
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be intelligence
Can mobile phone, personal computer, server or network equipment etc.) execute each embodiment the method for the present invention whole or
Part steps.And storage medium above-mentioned include: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory),
Random access memory (RAM, Random Access Memory), magnetic or disk etc. be various to can store program code
Medium.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.
Claims (10)
1. a kind of method based on sound output element acquisition external sound wave, which is characterized in that the method is applied to mobile whole
End, the mobile terminal include sound output element and sound input element, and the mobile terminal is equipped with sound output member
The sound output channel and environment of part acquire access, which comprises
It controls the sound output element and the voice input element forms primary Ioops；
When the sound output element is not in sound output state, controls the sound output element and be switched to the environment
Acquire access；
Control the sound output element acquisition external environment acoustic signals；
It obtains and comes from the received audio signal of voice input element, and by the audio signal and the ambient sound waves signal
Carry out default processing.
2. the method according to claim 1 based on sound output element acquisition external sound wave, which is characterized in that the shifting
Dynamic terminal includes processor and ADC converting unit,
The sound output element, the ADC converting unit and the processor are successively electrically connected to establish the environment and adopt
Collect access, and configures a control access of the environment acquisition access between the ADC converting unit and the processor.
3. the method according to claim 2 based on sound output element acquisition external sound wave, which is characterized in that also wrap
It includes:
The ambient sound waves signal collected to the sound output element is sent into the ADC conversion list after amplifying conditioning
Member.
4. the method according to claim 1 based on sound output element acquisition external sound wave, which is characterized in that described pre-
If processing includes:
Denoising is carried out to obtain the audio signal after a de-noising to the audio signal and the ambient sound waves signal.
5. the method according to claim 4 based on sound output element acquisition external sound wave, which is characterized in that described to disappear
Processing of making an uproar includes,
The ambient sound waves signal is sent into difference amplifier progress Signal averaging with the audio signal simultaneously to repair to obtain one
Positive audio signal, and the amendment audio signal is amplified into filtering processing, to obtain the audio signal after the de-noising.
6. a kind of device based on sound output element acquisition external sound wave, which is characterized in that described to be based on sound output element
The device for acquiring external sound wave is applied to mobile terminal, and the mobile terminal includes sound output element and sound input element,
The mobile terminal is equipped with the sound output channel of the sound output element and environment acquires access, and described device includes:
Circuit control module forms primary Ioops for controlling the sound output element and the voice input element；
Access switching module, for when the sound output element is not in sound output state, making the sound output member
Part is switched to the environment acquisition access；
Acquisition control module, for making the sound output element acquire extraneous ring when being switched to the environment acquisition access
Border acoustic signals；
Signal processing module, for obtain from the received audio signal of the voice input element and by the audio signal and
The ambient sound waves signal carries out default processing.
7. a kind of mobile terminal, which is characterized in that the mobile terminal includes processor, memory, voice input element harmony
Sound output element, the mobile terminal is equipped with the sound output channel of the sound output element and environment acquires access,
The memory is wanted for storing computer program, the processor for implementing right when executing the computer program
Seek the method based on sound output element acquisition external sound wave described in any one of 1-5.
8. mobile terminal according to claim 7, which is characterized in that further include: ADC converting unit,
The sound output element, the ADC converting unit and the processor are successively electrically connected to establish the environment and adopt
Collect access, and configures a control access of the environment acquisition access between the ADC converting unit and the processor.
9. mobile terminal according to claim 8, which is characterized in that further include: amplification conditioning circuit,
The amplification conditioning circuit is set between the ADC converting unit and the sound output element, for the sound
The ambient sound waves signal of output element acquisition is sent into the ADC converting unit after amplifying.
10. a kind of computer storage medium, which is characterized in that it stores computer program, is performed in the computer program
When, implement the method according to any one of claims 1-5 based on sound output element acquisition external sound wave.
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| CN201811107396.4A CN109040378A (en) | 2018-09-21 | 2018-09-21 | Method, apparatus and mobile terminal based on sound output element acquisition external sound wave |
| PCT/CN2019/107101 WO2020057656A1 (en) | 2018-09-21 | 2019-09-20 | Method, device and mobile terminal for collecting external sound wave based on sound output element |
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| CN201811107396.4A CN109040378A (en) | 2018-09-21 | 2018-09-21 | Method, apparatus and mobile terminal based on sound output element acquisition external sound wave |
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