CN106686494A - Voice input control method of wearable equipment and the wearable equipment - Google Patents
Voice input control method of wearable equipment and the wearable equipment Download PDFInfo
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- CN106686494A CN106686494A CN201611228077.XA CN201611228077A CN106686494A CN 106686494 A CN106686494 A CN 106686494A CN 201611228077 A CN201611228077 A CN 201611228077A CN 106686494 A CN106686494 A CN 106686494A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
-
- 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
- G10L21/0216—Noise filtering characterised by the method used for estimating noise
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/385—Transceivers carried on the body, e.g. in helmets
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B13/00—Transmission systems characterised by the medium used for transmission, not provided for in groups H04B3/00 - H04B11/00
- H04B13/005—Transmission systems in which the medium consists of the human body
-
- 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
- G10L21/0216—Noise filtering characterised by the method used for estimating noise
- G10L2021/02161—Number of inputs available containing the signal or the noise to be suppressed
- G10L2021/02165—Two microphones, one receiving mainly the noise signal and the other one mainly the speech signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/385—Transceivers carried on the body, e.g. in helmets
- H04B2001/3861—Transceivers carried on the body, e.g. in helmets carried in a hand or on fingers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
Abstract
Embodiments of the invention relate to the wearable equipment technology field and disclose a voice input control method of the wearable equipment and the wearable equipment. The method comprises the following steps of starting a first microphone and a second microphone of the wearable equipment, wherein the first microphone is a bone conduction microphone; through the first microphone, receiving a first vibration signal transmitted by a bone medium and converting the first vibration signal into a first audio signal; through the second microphone, receiving a second vibration signal transmitted by an air medium and converting the second vibration signal into a second audio signal; using the second audio signal to carry out noise reduction processing on the first audio signal so as to acquire a third audio signal; and determining the third audio signal to be an audio signal of an input voice of a wearer. In the embodiments of the invention, through a mode of combining double microphones, an interference of an environmental noise to the voice input by the wearer is reduced and a user experience is improved.
Description
Technical field
The present invention relates to wearable device technical field, and in particular to a kind of phonetic entry control method of wearable device
And wearable device.
Background technology
At present, on market including being usually provided with mike on the wearable product including intelligent watch, Intelligent bracelet
(MIC, Microphone), when being conversed, traditional MIC is capable of the sound of receiving user's input.In actual applications, when
When wearable product is in relatively more noisy environment, the sound that traditional MIC is received not only includes the sound of user input,
Also include the noise in environment, this causes interference to call, so as to the call for reducing user is experienced.
The content of the invention
The embodiment of the invention discloses the phonetic entry control method and wearable device of a kind of wearable device, can drop
The interference that low environment noise is caused to the voice that wearer is input into.
Embodiment of the present invention first aspect discloses a kind of phonetic entry control method of wearable device, methods described bag
Include：
Start first mike and second microphone of the wearable device, first mike is bone conduction wheat
Gram wind；
First vibration signal of bone medium transmission is received and by first vibration signal turn by first mike
Turn to the first audio signal, and by the second microphone receive air dielectric transmission the second vibration signal and will be described
Second vibration signal is converted into the second audio signal；
Noise reduction process is carried out to first audio signal using second audio signal and obtains the 3rd audio signal, and
3rd audio signal is defined as into the audio signal that wearer is input into voice.
Used as a kind of optional embodiment, in embodiment of the present invention first aspect, methods described also includes：
Bone-conduction mode, the bone-conduction mode is switched to be used to need to broadcast the play mode of the wearable device
The 4th audio signal put is converted into the 3rd vibration signal and by bone medium transmission.
It is described using second audio frequency in embodiment of the present invention first aspect as a kind of optional embodiment
Signal carries out noise reduction process and obtains before the 3rd audio signal to first audio signal, and methods described also includes：
Whether detect in first audio signal comprising the 4th audio signal, when the test results is yes, filter
The 4th audio signal included in first audio signal.
It is described using second audio frequency in embodiment of the present invention first aspect as a kind of optional embodiment
Signal carries out noise reduction process and obtains after the 3rd audio signal to first audio signal, described by the 3rd audio signal
It is defined as wearer to be input into before the audio signal of voice, methods described also includes：
Detect in the 3rd audio signal with the presence or absence of Oscillation Amplitude less than or equal to the audio frequency for presetting Oscillation Amplitude threshold value
Signal, when the test results is yes, filters Oscillation Amplitude in the 3rd audio signal and is less than or equal to the default Oscillation Amplitude
The audio signal of threshold value, obtains the 3rd audio signal after noise reduction；
It is described that 3rd audio signal is defined as into the audio signal that wearer is input into voice, including：
The 3rd audio signal after the noise reduction is defined as into the audio signal that wearer is input into voice.
It is described to filter first audio frequency in embodiment of the present invention first aspect as a kind of optional embodiment
The 4th audio signal included in signal, including：
Filter in first audio signal with the 4th audio signal frequency identical audio signal；Or,
And frequency identical audio signal contrary with the 4th audio signal amplitude is weighted to first audio frequency letter
In number to filter first audio signal in the 4th audio signal that includes.
It is described using second audio frequency in embodiment of the present invention first aspect as a kind of optional embodiment
Signal carries out noise reduction process and obtains the 3rd audio signal to first audio signal, including：
The audio content of second audio signal and the audio content of first audio signal are analyzed, obtains described
Identical audio content between second audio signal and first audio signal；
For in first audio signal with the corresponding first object audio signal of the identical audio content and institute
State in the second audio signal and perform audio signal overlap-add operation with corresponding second target audio signal of the identical audio content,
And operation is filtered for the audio signal execution in first audio signal in addition to the first object audio signal, obtain
3rd audio signal.
Embodiment of the present invention second aspect discloses a kind of wearable device, the wearable device include start unit,
Processing unit, noise reduction unit and determining unit, wherein：
The start unit, for starting first mike and second microphone of the wearable device, described
One mike is bone-conduction microphone；
The processing unit, for the first vibration signal of bone medium transmission being received by first mike and by institute
State the first vibration signal and be converted into the first audio signal, and the second of air dielectric transmission is received by the second microphone
Second vibration signal is simultaneously converted into the second audio signal by vibration signal；
The noise reduction unit, obtains for carrying out noise reduction process to first audio signal using second audio signal
To the 3rd audio signal；
The determining unit, for the 3rd audio signal to be defined as into the audio signal that wearer is input into voice.
Used as a kind of optional embodiment, in embodiment of the present invention second aspect, the wearable device also includes
Switch unit, wherein：
The switch unit, for switching to bone-conduction mode, the bone to pass the play mode of the wearable device
Waveguide mode is used to for the 4th audio signal for needing to play to be converted into the 3rd vibration signal and by bone medium transmission.
Used as a kind of optional embodiment, in embodiment of the present invention second aspect, the wearable device also includes
Detector unit, wherein：
The detector unit, for utilizing second audio signal to first audio signal in the noise reduction unit
Carry out noise reduction process to obtain before the 3rd audio signal, whether detect in first audio signal comprising the 4th audio frequency letter
Number；
The noise reduction unit, is additionally operable to include the described 4th in the detector unit detects first audio signal
During audio signal, the 4th audio signal included in first audio signal is filtered.
Used as a kind of optional embodiment, in embodiment of the present invention second aspect, the detector unit is additionally operable to
The noise reduction unit carries out noise reduction process to first audio signal and obtains the 3rd audio frequency letter using second audio signal
Number afterwards and the determining unit by the 3rd audio signal be defined as wearer be input into voice audio signal it
Before, detect in the 3rd audio signal with the presence or absence of Oscillation Amplitude less than or equal to the audio signal for presetting Oscillation Amplitude threshold value；
The noise reduction unit, is additionally operable to there is Oscillation Amplitude in the 3rd audio signal is detected less than or equal to described
During the audio signal of default Oscillation Amplitude threshold value, filter Oscillation Amplitude in the 3rd audio signal and shake less than or equal to described presetting
The audio signal of dynamic amplitude threshold, obtains the 3rd audio signal after noise reduction；
The determining unit by the 3rd audio signal be defined as wearer be input into voice audio signal it is concrete
Mode is：
The 3rd audio signal after the noise reduction is defined as into the audio signal that wearer is input into voice.
Used as a kind of optional embodiment, in embodiment of the present invention second aspect, the noise reduction unit filters described
The concrete mode of the 4th audio signal included in the first audio signal is：
Filter in first audio signal with the 4th audio signal frequency identical audio signal；Or,
And frequency identical audio signal contrary with the 4th audio signal amplitude is weighted to first audio frequency letter
In number to filter first audio signal in the 4th audio signal that includes.
Used as a kind of optional embodiment, in embodiment of the present invention second aspect, the noise reduction unit is using described
Second audio signal carries out noise reduction process to first audio signal and obtains the concrete mode of the 3rd audio signal：
The audio content of second audio signal and the audio content of first audio signal are analyzed, obtains described
Identical audio content between second audio signal and first audio signal；
For in first audio signal with the corresponding first object audio signal of the identical audio content and institute
State and perform audio signal with corresponding second target audio signal of the identical audio content in the second audio signal and strengthen operation,
And operation is filtered for the audio signal execution in first audio signal in addition to the first object audio signal, obtain
3rd audio signal.
Compared with prior art, the embodiment of the present invention has the advantages that：
In the embodiment of the present invention, start first mike and second microphone of wearable device, wherein, first wheat
Gram wind is bone-conduction microphone, and the first vibration signal of bone medium transmission is received and by first vibration by first mike
Signal is converted into the first audio signal, and receives the second vibration signal of air dielectric transmission by the second microphone and incite somebody to action
Second vibration signal is converted into the second audio signal, and first audio signal is carried out at noise reduction using second audio signal
Reason obtains the 3rd audio signal, and the 3rd audio signal is defined as into the audio signal that wearer is input into voice.In this base
On plinth, when needing to be input into voice to wearable device, wearer can wear a certain finger of the arm of wearable device
(such as thumb or little finger of toe) is at the chin or face of wearer, so that the vibration signal of the voice of wearer's input
Transmit to the first mike (bone-conduction microphone) and by air along finger and transmit to second microphone (conventional microphone),
Include that wearer institute is defeated in the audio signal changed into second microphone due to the audio signal that the first mike is changed into
Enter the audio signal of voice, therefore, it can be changed into by second microphone audio signal is changed into the first mike
Audio signal performs noise reduction process, to reduce the interference that environment noise is caused to the voice that wearer is input into.It can be seen that, implement this
Bright embodiment can reduce the interference that environment noise is caused to the voice that wearer is input into by way of dual microphone is combined, and enter
And improve experience.
Description of the drawings
Technical scheme in order to be illustrated more clearly that the embodiment of the present invention, below by to be used needed for embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ability
For the those of ordinary skill of domain, on the premise of not paying creative work, can be attached to obtain others according to these accompanying drawings
Figure.
Fig. 1 be disclosed in the embodiment of the present invention it is a kind of by wearable product be tightly attached to ear listen to play sound signal
Figure；
Fig. 2 is a kind of schematic flow sheet of the phonetic entry control method of wearable device disclosed in the embodiment of the present invention；
Fig. 3 is that the flow process of the phonetic entry control method of another kind of wearable device disclosed in the embodiment of the present invention is illustrated
Figure；
Fig. 4 is the schematic diagram that a kind of utilization wearable device disclosed in the embodiment of the present invention is conversed；
Fig. 5 is a kind of structural representation of wearable device disclosed in the embodiment of the present invention；
Fig. 6 is the structural representation of another kind of wearable device disclosed in the embodiment of the present invention；
Fig. 7 is a kind of principle schematic of noise reduction disclosed in the embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.Based on this
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, the scope of protection of the invention is belonged to.
The embodiment of the invention discloses the phonetic entry control method and wearable device of a kind of wearable device, can make
The vibration signal of the voice of wearer's input is along bone medium transmission to bone-conduction microphone and by air dielectric transmission to biography
System mike, and the audio signal that the audio signal changed into by second microphone is changed into the first mike performs noise reduction
Process, environment noise is reduced by way of dual microphone is combined the interference that voice is caused is input into wearer, improve pendant
The experience of wearer.It is described in detail individually below.
Embodiment one
Fig. 2 is referred to, Fig. 2 is a kind of stream of the phonetic entry control method of wearable device disclosed in the embodiment of the present invention
Journey schematic diagram.As shown in Fig. 2 the phonetic entry control method of the wearable device can include following operation：
201st, wearable device starts the first mike and second microphone on wearable device, first mike
For bone-conduction microphone, the second microphone is conventional microphone.
In the embodiment of the present invention, wearable device can be including the wearable product including intelligent watch, Intelligent bracelet, this
Inventive embodiments are not construed as limiting.
In the embodiment of the present invention, wearable device can need to be input into voice (as connected phone, dialling wearer is detected
Being responded or being started for making a call needs to be input into application etc. of voice) when the first mike for starting on wearable device with
And second microphone, or need to be input into the environment noise of voice and wearable device local environment wearer is detected
Start the first mike and second microphone on wearable device when value is more than or equal to default environment noise value threshold value, may be used also
Being to need to be input into voice and detect when wearer occurs gesture motion upward to start wearable setting detecting wearer
Standby upper the first mike and second microphone, to can also be and need to be input into voice and need input detecting wearer
When the application of voice artificially presets contact person for the higher application of privacy class or the contact for needing to be input in the application of voice
Start first mike and second microphone of wearable device, the embodiment of the present invention is not limited.
In the embodiment of the present invention, the first mike is specifically for receiving the vibration signal of bone medium transmission and will be situated between from bone
The vibration signal of matter is converted into audio signal, second microphone specifically for receive air dielectric transmission vibration signal and by its
The vibration signal for receiving is converted into audio signal.It should be noted that first mike is arranged on the wearable device
Bottom, so that the first Mike wind energy is contacted with the skin of wearer when wearer correctly wears wearable device.
202nd, wearable device by above-mentioned first mike receive bone medium transmission the first vibration signal and by this
One vibration signal is converted into the first audio signal, and receives the second vibration of air dielectric transmission by above-mentioned second microphone
Second vibration signal is simultaneously converted into the second audio signal by signal.
In the embodiment of the present invention, include that wearer is input into voice in first audio signal and second audio signal
Audio signal, and be also possible that the different environment of Oscillation Amplitude is made an uproar in first audio signal and second audio signal
The audio signal of sound, and the Oscillation Amplitude of the audio signal of environment noise that first audio signal includes is less than second sound
The Oscillation Amplitude of the audio signal of the environment noise that frequency signal includes.
203rd, wearable device carries out noise reduction process and obtains using above-mentioned second audio signal to above-mentioned first audio signal
3rd audio signal.
204th, above-mentioned 3rd audio signal is defined as the audio signal that wearer is input into voice by wearable device.
In the embodiment of the present invention, by above-mentioned 3rd audio signal be defined as wearer be input into voice audio signal it
Afterwards, wearable device can store the 3rd audio signal according to the actual demand of wearer, or, by the 3rd audio signal
As communication voice signals send to wearable device set up communication connection (as call be connected or instant messaging connect etc.)
User terminal.
In an optional embodiment, wearable device is using above-mentioned second audio signal to above-mentioned first audio signal
Carry out noise reduction process and obtain the 3rd audio signal including：
Wearable device is analyzed in the above-mentioned audio content of the second audio signal and the audio frequency of above-mentioned first audio signal
Hold, obtain the identical audio content between above-mentioned second audio signal and above-mentioned first audio signal；
Wearable device is for the corresponding first object audio frequency letter of audio content identical with this in above-mentioned first audio signal
Number and above-mentioned second audio signal in corresponding second target audio signal of identical with this audio content perform audio signal and fold
Add operation, and filter behaviour for the audio signal execution in above-mentioned first audio signal in addition to the first object audio signal
Make, obtain the 3rd audio signal.
In the optional embodiment, wearable device is analyzed from above-mentioned second audio signal and marked and above-mentioned
The audio signal that one audio signal matches, and the sound to matching in above-mentioned first audio signal and above-mentioned second audio signal
Frequency signal performs overlap-add operation, to strengthen the signal intensity of the audio signal for matching, and to above-mentioned first audio signal
In audio signal (i.e. the audio signal of environment noise) in addition to the audio signal that this matches perform and filter operation, obtain the
Three audio signals, wherein, the 3rd audio signal is mainly the enhancing signal that wearer actually enters the audio signal of voice, and
Match can match including Oscillation Amplitude, frequency of vibration matches, audio content matches and vocal print feature matches
In at least one, the embodiment of the present invention do not limit.Audio signal so to matching is overlapped the mode of operation and increases
The strong intensity of useful voice signal so that voice of the wearer to wearable device input in the noisy environment of environment is not received
Affect, i.e., can improve the use body of the input voice under noisy environment to wearable device input more clearly voice
Test, while the audio for avoiding the voice of wearer's input that conventional microphone is received does not reach asking for performance requirement with volume
Topic.
In another optional embodiment, after the step 203 that is finished and before execution step 204, should
The phonetic entry control method of wearable device can also include following operation：
Wearable device is detected in above-mentioned 3rd audio signal with the presence or absence of Oscillation Amplitude less than or equal to default Oscillation Amplitude
The audio signal of threshold value；
When the test results is yes, wearable device determines sound of the Oscillation Amplitude less than or equal to default Oscillation Amplitude threshold value
Frequency signal is the audio signal of useless audio signal or environment noise and filters.Specifically, wearable device can be by wearing
Wear the die filter in equipment and filter audio signal of the Oscillation Amplitude less than or equal to default Oscillation Amplitude threshold value, the present invention is real
Apply example not limit.The audio signal of useless environment noise can be so further filtered out, further increases wearer's
Phonetic entry is experienced.
In another optional embodiment, before execution step 201, the phonetic entry controlling party of the wearable device
Method can also include following operation：
Wearable device judges whether the wearing state of wearable device is normal wearing state, when judging for normal pendant
When wearing state, execution step 201 is triggered；When it is improper wearing state to judge wearing state, output correction is reminded, and this is rectified
Just reminding for pointing out the wearer of wearable device to correct the wearing state for wearable device.
Wherein, wearable device judges whether the wearing state of wearable device is that normal wearing state can include：
The temperature parameter that the temperature sensor of wearable device collection wearable device bottom is collected；
When the temperature parameter for collecting is interior in preset temperature range (normal temperature range at wearer's wrist), can
Wearable device is gathered before wearer of above-mentioned first mike with wearable device by the touch sensor of wearable device
Exposure parameter；
When the exposure parameter for collecting meets preset exposure Parameter Conditions, wearable device determines its wearing state for just
Normal wearing state；
When the exposure parameter for collecting is unsatisfactory for preset exposure Parameter Conditions or the temperature parameter that collects is not in presetting
When in temperature range, wearable device determines that its wearing state is improper wearing state.
Wherein, above-mentioned exposure parameter can include contact area, optionally, can also include contact pressure, when collecting
Contact area be more than or equal to preset area threshold value, or when the contact area that collect is more than or equal to preset area threshold value and adopts
When the contact pressure for collecting is more than or equal to preset pressure threshold value, wearable device determines that the exposure parameter for collecting meets default connecing
Tactile Parameter Conditions.
The optional embodiment can confirm to be set for wearable in the temperature parameter and exposure parameter by collecting
Standby wearing state just starts above-mentioned first mike and above-mentioned second microphone when being normal wearing state, further ensures
Above-mentioned first mike can receive the vibration signal of bone medium transmission.
It can be seen that, implement the language that the phonetic entry control method of the wearable device described by Fig. 2 is input into can wearer
The vibration signal of sound passes through along bone medium transmission to bone-conduction microphone and by air dielectric transmission to conventional microphone
The audio signal that the audio signal that second microphone is changed into is changed into the first mike performs noise reduction process, by diamylose gram
The mode that wind is combined reduces environment noise and the interference that voice is caused is input into wearer, improves the phonetic entry body of wearer
Test.
Embodiment two
Fig. 3 is referred to, Fig. 3 is the phonetic entry control method of another kind of wearable device disclosed in the embodiment of the present invention
Schematic flow sheet.As shown in figure 3, the phonetic entry control method of the wearable device can include following operation：
301st, wearable device gathers the environment noise value of its local environment.
In the embodiment of the present invention, wearable device can be including the wearable product including intelligent watch, Intelligent bracelet, this
Inventive embodiments are not construed as limiting.
302nd, whether wearable device judges the above-mentioned environment noise value for collecting more than or equal to default environment noise value threshold
Value.
In the embodiment of the present invention, when the judged result of step 302 is to be, execution step 303 is triggered；When step 302
When judged result is no, wearable device need to only start the second microphone (i.e. conventional microphone) on wearable device.
303rd, wearable device starts the first mike and second microphone on wearable device.
In the embodiment of the present invention, the first mike is bone-conduction microphone, and the first mike is specifically for receiving bone Jie
The vibration signal of matter transmission simultaneously will be converted into audio signal from the vibration signal of bone medium, and second microphone is specifically for receiving
The vibration signal of the air dielectric transmission and vibration signal for being received is converted into audio signal.It should be noted that the bone
Conduction microphone is arranged on the bottom of the wearable device, so that the bone conduction wheat when wearer correctly wears wearable device
Gram wind energy is contacted with the skin of wearer.
304th, the play mode of wearable device is switched to bone-conduction mode by wearable device.
In the embodiment of the present invention, the bone-conduction mode is used to for the 4th audio signal for needing to play to be converted into the 3rd vibration
Signal simultaneously passes through the vibration signal of bone medium transmission the 3rd.Specifically, it is also equipped with wearable device for realizing that the bone is passed
The bone conduction body part of waveguide mode, such as bone conduction loudspeaker, and the bone conduction body part may be mounted at this and wearable sets
Standby bottom, so that the bone conduction body part can connect with the skin of wearer when wearer correctly wears wearable device
Touch.I.e.：Assume that wearable device is worn at the wrist of wearer's arm, wearer can will wear the wearable device
The a certain finger (such as forefinger) of arm withstands ear base or gos deep into ear so that ear's row is into closed sound chamber, so that shaking
Dynamic signal can pass through the conduction of bone medium into ear and cause tympanum to produce enough resonance, play such that it is able to reach privacy
The effect of sound, the people of surrounding cannot eavesdrop, and broadcasting sound is listened under existing play mode relative to as shown in Figure 1
For, the wrist for wearing wearable device is close to ear by bone-conduction mode without the need for wearer can just hear that wearable device is broadcast
The sound put, can make wearer more easily listen to the sound of broadcasting, and effectively reduce the sound of broadcasting by people around
The risk of eavesdropping.
In the embodiment of the present invention, it should be noted that when only needing to provide preferable phonetic entry experience, it is wearable to set
It is standby only to start above-mentioned first mike and above-mentioned second microphone；Experience but also needs when preferable phonetic entry is not only needed
When preferable voice output experience (or speech play experience) is provided, wearable device start above-mentioned first mike and on
While stating second microphone, in addition it is also necessary to which the play mode of wearable device is switched to into bone-conduction mode by outer mode playback.Can
Choosing, wearable device can also be exported for reminding the wearer of wearable device with default posture input voice and listening to
The prompting message of voice is played, wherein, the default posture will be worn in the case where wearer normally wears wearable device
The face or chin of the close wearer of some finger (such as thumb or little finger of toe) of the arm of wearable device simultaneously will
Another finger (such as forefinger) of the arm withstands ear base or gos deep into ear so that ear's row is into closed sound chamber.
In the embodiment of the present invention, for example, wearer uses the phonetic entry controlling party described by the embodiment of the present invention
The schematic diagram that method is conversed can be with as shown in figure 4, Fig. 4 be that one kind is carried out using wearable device disclosed in the embodiment of the present invention
The schematic diagram of call.Wherein, when wearer is conversed, wearer wears the arm of wearable device and lifts and by the arm
Forefinger insertion ear, then by the little finger of toe of the arm near chin.
305th, wearable device by above-mentioned first mike receive bone medium transmission the first vibration signal and by this
One vibration signal is converted into the first audio signal, and receives the second vibration of air dielectric transmission by above-mentioned second microphone
Second vibration signal is simultaneously converted into the second audio signal by signal.
306th, wearable device detects in above-mentioned first audio signal whether include above-mentioned 4th audio signal.
In the embodiment of the present invention, when the judged result of step 306 is to be, execution step 307 is triggered；When step 306
When judged result is no, execution step 308 is triggered.
In the embodiment of the present invention, when playing voice under above-mentioned bone-conduction mode, wearable device can be set by wearable
Standby upper bone conduction body part (such as bone conduction loudspeaker) is by from the 4th sound of the user terminal for establishing communication connection
Frequency signal converts the 3rd vibration signal, because the 3rd vibration signal is also to be transmitted along bone medium, above-mentioned first wheat
The first vibration signal from bone medium that gram wind is received not only includes the vibration signal of the voice of wearer's input, it is also possible to
Including the 3rd vibration signal, it is also possible to further include the vibration signal of environment noise, wherein, the vibration signal of environment noise
Amplitude it is less, therefore, the first audio signal that the vibration signal that above-mentioned first mike is received is changed into except bag
Include outside useful audio signal (i.e. wearer is input into the audio signal of voice), it is also possible to including interference tones signal (environment
The audio signal of the audio signal of noise and the voice for needing to play or export).
307th, wearable device filters the 4th audio signal included in above-mentioned first audio signal.
Optionally, wearable device filters the 4th audio signal included in above-mentioned first audio signal and can include：
Wearable device filter in above-mentioned first audio signal with the 4th audio signal frequency identical audio signal；Or
Person,
Wearable device weights and frequency identical audio signal contrary with above-mentioned 4th audio signal amplitude to above-mentioned
In first audio signal to filter above-mentioned first audio signal in the 4th audio signal that includes；Or,
Wearable device filter in above-mentioned first audio signal with above-mentioned 4th audio signal vocal print feature identical audio frequency
Signal.
Wherein, by weighting and frequency identical contrary with above-mentioned 4th audio signal amplitude to above-mentioned first audio signal
Audio signal realizes that the principle of noise reduction can be with as shown in fig. 7, the principle that Fig. 7 is a kind of noise reduction disclosed in the embodiment of the present invention be illustrated
Figure.Wherein, in Fig. 7 F (X) can be subtraction.
It should be noted that wearable device is filtered obtaining after the 4th audio signal included in above-mentioned first audio signal
The first audio signal after noise reduction, and using the first audio signal after the noise reduction as the first audio signal in subsequent operation.
308th, wearable device carries out noise reduction process and obtains using above-mentioned second audio signal to above-mentioned first audio signal
3rd audio signal.
Optionally, wearable device carries out noise reduction process and obtains using above-mentioned second audio signal to above-mentioned first audio signal
Can include to the 3rd audio signal：
Wearable device is analyzed in the above-mentioned audio content of the second audio signal and the audio frequency of above-mentioned first audio signal
Hold, obtain the identical audio content between above-mentioned second audio signal and above-mentioned first audio signal；
Wearable device is for the corresponding first object audio frequency letter of audio content identical with this in above-mentioned first audio signal
Number and above-mentioned second audio signal in corresponding second target audio signal of identical with this audio content perform audio signal and fold
Add operation, and filter behaviour for the audio signal execution in above-mentioned first audio signal in addition to the first object audio signal
Make, obtain the 3rd audio signal.
In the optional embodiment, wearable device is analyzed from above-mentioned second audio signal and marked and above-mentioned
The audio signal that one audio signal matches, and the sound to matching in above-mentioned first audio signal and above-mentioned second audio signal
Frequency signal performs overlap-add operation, to strengthen the signal intensity of the audio signal for matching, and to above-mentioned first audio signal
In audio signal (i.e. the audio signal of environment noise) in addition to the audio signal that this matches perform and filter operation, obtain the
Three audio signals, wherein, the 3rd audio signal is mainly the enhancing signal that wearer actually enters the audio signal of voice, and
Match can match including Oscillation Amplitude, frequency of vibration matches, audio content matches and vocal print feature matches
In at least one, the embodiment of the present invention do not limit.Audio signal so to matching is overlapped the mode of operation and increases
The strong intensity of useful voice signal so that wearer does not receive shadow where environment is noisy to the voice of wearable device input
Ring, i.e., can improve the experience of the input voice under noisy environment to wearable device input more clearly voice,
The audio and volume for avoiding the voice of wearer's input that conventional microphone is received simultaneously does not reach the problem of performance requirement.
309th, wearable device by above-mentioned 3rd audio signal be defined as wearer be input into voice audio signal it is concurrent
Deliver to the user terminal that communication connection is set up with wearable device.
In an optional embodiment, after execution step 308 and before execution step 309, this is wearable
The phonetic entry control method of equipment can also carry out following operation：
Wearable device is detected in above-mentioned 3rd audio signal with the presence or absence of Oscillation Amplitude less than or equal to default Oscillation Amplitude
The audio signal of threshold value, when the test results is yes, filters Oscillation Amplitude in above-mentioned 3rd audio signal and shakes less than or equal to default
The audio signal of dynamic amplitude threshold, obtains the 3rd audio signal after noise reduction.
In the optional embodiment, above-mentioned 3rd audio signal is defined as wearer and is input into voice by wearable device
Audio signal and send to wearable device set up communication connection user terminal be specially：
The audio signal that the 3rd audio signal after above-mentioned noise reduction is defined as wearer's input voice by wearable device is simultaneously
Send to the user terminal that communication connection is set up with wearable device.
It can be seen that, the phonetic entry control method of the wearable device described by implementing Fig. 3 can make the language of wearer's input
The vibration signal of sound passes through along bone medium transmission to bone-conduction microphone and by air dielectric transmission to conventional microphone
The audio signal that the audio signal that second microphone is changed into is changed into the first mike performs noise reduction process, by diamylose gram
The mode that wind is combined reduces the interference that environment noise is caused to the voice that wearer is input into, and obtains enhanced useful audio frequency
Signal, improves the experience of wearer, and switches to bone-conduction mode that wearer can be made more convenient play mode
The sound for listening to broadcasting and effectively reduce the risk that the sound of broadcasting is eavesdropped by people around, additionally it is possible to filter bone biography
The interference tones signal that waveguide mode brings, reduces the interference that environment noise and bone-conduction mode are brought, it is ensured that voice
The quality of communication.
Embodiment three
Fig. 5 is referred to, Fig. 5 is a kind of structural representation of wearable device disclosed in the embodiment of the present invention.Wherein, Fig. 5
Shown wearable device 500 can be intelligent watch, Intelligent bracelet in interior wearable product.As shown in figure 5, this is wearable
Equipment 500 can include start unit 501, processing unit 502, noise reduction unit 503 and determining unit 504, wherein：
Start unit 501 is used to start first mike and second microphone of wearable device 500, wherein, this
One mike is bone-conduction microphone, and the second microphone is conventional microphone.
Processing unit 502 is used for the first of the first mike reception bone medium transmission started by start unit 501 and is shaken
First vibration signal is simultaneously converted into the first audio signal, and the second Mike started by start unit 501 by dynamic signal
Wind receives the second vibration signal of air dielectric transmission and second vibration signal is converted into into the second audio signal.
Noise reduction unit 503 is obtained for carrying out noise reduction process to above-mentioned first audio signal using above-mentioned second audio signal
3rd audio signal.
Determining unit 504 is input into voice for the 3rd audio signal that noise reduction unit 503 is obtained to be defined as into wearer
Audio signal.
It can be seen that, the wearable device 500 described by enforcement Fig. 5 can make the vibration signal of the voice of wearer's input along bone
Medium transmission is changed into bone-conduction microphone and by air dielectric transmission to conventional microphone by second microphone
Audio signal audio signal that the first mike is changed into perform noise reduction process, reduce by way of dual microphone is combined
Environment noise is input into the interference that voice is caused to wearer, improves the experience of wearer.
In an optional embodiment, the wearable device 500 can also include switch unit 505, further optional
, detector unit 506 can also be included, now, the wearable device 500 can be with as shown in fig. 6, Fig. 6 be the embodiment of the present invention
The structural representation of disclosed another kind of wearable device.Wherein：
Switch unit 505 is used to for the play mode of wearable device 500 to switch to bone-conduction mode, wherein, the bone is passed
Waveguide mode is used to for the 4th audio signal for needing to play to be converted into the 3rd vibration signal and by bone medium transmission.
In the embodiment of the present invention, specifically, need to play the communication pattern of voice (as conversed not only needing to be input into voice
Pattern) under, start unit 501 after above-mentioned first mike and above-mentioned second microphone is started, to switch unit 505
Triggering command is sent, the triggering command is used to trigger switch unit 505 and perform that the play mode of wearable device 500 to be switched to into bone
The operation of conduction mode.
Detector unit 506 is used to enter above-mentioned first audio signal using above-mentioned second audio signal in noise reduction unit 503
Whether row noise reduction process is obtained before the 3rd audio signal, detected in above-mentioned first audio signal including above-mentioned 4th audio frequency letter
Number.
Noise reduction unit 503 can be also used for when detector unit 506 detects include in above-mentioned first audio signal above-mentioned
During four audio signals, above-mentioned 4th audio signal included in above-mentioned first audio signal is filtered.
Further alternative, detector unit 506 can be also used for utilizing above-mentioned second audio signal pair in noise reduction unit 503
Above-mentioned first audio signal carries out noise reduction process and obtains believing the 3rd audio frequency after the 3rd audio signal and in determining unit 504
Number being defined as wearer is input into before the audio signal of voice, and detecting in the 3rd audio signal that noise reduction unit 503 is obtained is
It is no to there is audio signal of the Oscillation Amplitude less than or equal to default Oscillation Amplitude threshold value.
Noise reduction unit 503 can be also used for the presence of vibration width in detector unit 506 detects above-mentioned 3rd audio signal
When degree is less than or equal to the audio signal for presetting Oscillation Amplitude threshold value, filters Oscillation Amplitude in the 3rd audio signal and be less than or equal to preset
The audio signal of Oscillation Amplitude threshold value, obtains the 3rd audio signal after noise reduction.
Wherein it is determined that above-mentioned 3rd audio signal to be defined as unit 504 audio signal of the voice that wearer is input into
Concrete mode can be：
The 3rd audio signal after the noise reduction that noise reduction unit 503 is obtained is defined as the audio frequency letter that wearer is input into voice
Number.
Further optional, noise reduction unit 503 filters the above-mentioned 4th audio frequency letter included in above-mentioned first audio signal
Number concrete mode can be：
Filter in above-mentioned first audio signal with the 4th audio signal frequency identical audio signal；Or,
And frequency identical audio signal contrary with above-mentioned 4th audio signal amplitude is weighted to above-mentioned first audio frequency letter
In number to filter above-mentioned first audio signal in above-mentioned 4th audio signal that includes；Or,
Filter in above-mentioned first audio signal with above-mentioned 4th audio signal vocal print feature identical audio signal.
Wherein, by weighting and frequency identical contrary with above-mentioned 4th audio signal amplitude to above-mentioned first audio signal
Audio signal realizes that the principle of noise reduction can be with as shown in fig. 7, the principle that Fig. 7 is a kind of noise reduction disclosed in the embodiment of the present invention be illustrated
Figure.Wherein, in Fig. 7 F (X) can be subtraction.
Further optional, noise reduction unit 503 is carried out using above-mentioned second audio signal to above-mentioned first audio signal
Noise reduction process obtains the concrete mode of the 3rd audio signal：
The audio content of above-mentioned second audio signal and the audio content of above-mentioned first audio signal are analyzed, obtains above-mentioned
Identical audio content between second audio signal and above-mentioned first audio signal；
For the corresponding first object audio signal of audio content identical with this in above-mentioned first audio signal and above-mentioned
Corresponding second target audio signal of identical with this audio content performs audio signal overlap-add operation, and pin in second audio signal
Audio signal in above-mentioned first audio signal in addition to the first object audio signal is performed and filters operation, obtain the 3rd sound
Frequency signal.
In actual applications, noise reduction unit 503 is analyzed from above-mentioned second audio signal and marked and above-mentioned first sound
The audio signal that frequency signal matches, and the audio frequency letter to matching in above-mentioned first audio signal and above-mentioned second audio signal
Number perform overlap-add operation, to strengthen the signal intensity of the audio signal for matching, and to removing in above-mentioned first audio signal
Audio signal outside the audio signal for matching is performed and filters operation, obtains the 3rd audio signal, wherein, the 3rd audio frequency
Signal is mainly the enhancing signal that wearer actually enters the audio signal of voice, and matches and can include Oscillation Amplitude phase
Match with, frequency of vibration, audio content matches and at least one during vocal print feature matches, the embodiment of the present invention is not
Limit.
In another optional embodiment, detector unit 506 can be also used for starting above-mentioned first in start unit 501
Before mike and above-mentioned second microphone, detect whether the wearer of wearable device 500 needs to be input into voice, specifically
, whether the detection call request that whether wearable device 500 connects phone, wearable device 500 sends is responded or can
Need whether the application for being input into voice is activated on wearable device；Or, need in the wearer for detecting wearable device 500
Detect the environment noise value of the local environment of wearable device 500 whether more than or equal to default environment noise value threshold when being input into voice
Value；Or whether detection needs to be input into the application of voice when the wearer for detecting wearable device 500 needs to be input into voice
It is that privacy class is more than or equal to the application for presetting privacy class；Or need in the wearer for detecting wearable device 500 defeated
Detection when entering voice needs whether the contact person being input in the application of voice is to preset one of them in contact person；Or in inspection
Measure when the wearer of wearable device 500 needs to be input into voice and detect whether wearer occurs gesture motion upward, when
The testing result of detector unit 506 is for when being, triggering start unit 501 performs above-mentioned first mike of above-mentioned startup and above-mentioned
The operation of second microphone.
Further alternative in an alternative embodiment, processing unit 502 can be also used in detector unit
506 testing result for after being and start unit 501 start above-mentioned first mike and above-mentioned second microphone it
Before, whether the wearing state for judging wearable device is normal wearing state.
Now, start unit 501 is specifically for being to be and process single 502 and sentence when the testing result of detector unit 506
When disconnected result is to be, start above-mentioned first mike and above-mentioned second microphone.
Wherein, processing unit 502 judges that whether the wearing state of wearable device is the concrete mode of normal wearing state
Can be：
The temperature parameter that the temperature sensor of collection wearable device bottom is collected；
When the temperature parameter for collecting is interior in preset temperature range (normal temperature range at wearer's wrist), lead to
Exposure parameter before crossing above-mentioned first mike of touch sensor collection of wearable device and the wearer of wearable device；
When the exposure parameter for collecting meets preset exposure Parameter Conditions, its wearing state is determined normally to wear shape
State；When the exposure parameter for collecting is unsatisfactory for preset exposure Parameter Conditions or the temperature parameter that collects is not in preset temperature model
When enclosing interior, determine that its wearing state is improper wearing state.
It can be seen that, implementing the wearable device 500 described by Fig. 6 can also switch to bone by the play mode of wearable device
Conduction mode, can so make wearer more easily listen to the sound of broadcasting and effectively reduce the sound of broadcasting by surrounding
The risk of people's eavesdropping, additionally it is possible to filter the interference tones signal that bone-conduction mode brings, reduce environment noise and on
State the interference that bone-conduction mode is brought, it is ensured that the quality of voice communication.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
Completed with instructing the hardware of correlation by program, the program can be stored in a computer-readable recording medium, storage
Medium include read only memory (Read-Only Memory, ROM), random access memory (Random Access Memory,
RAM), programmable read only memory (Programmable Read-only Memory, PROM), erasable programmable is read-only deposits
Reservoir (Erasable Programmable Read Only Memory, EPROM), disposable programmable read only memory (One-
Time Programmable Read-Only Memory, OTPROM), the electronics formula of erasing can make carbon copies read only memory
(Electrically-Erasable Programmable Read-Only Memory, EEPROM), read-only optical disc (Compact
Disc Read-Only Memory, CD-ROM) or other disk storages, disk memory, magnetic tape storage or can
For carrying or computer-readable any other medium of data storage.
Above to the phonetic entry control method and wearable device of a kind of wearable device disclosed in the embodiment of the present invention
It is described in detail, specific case used herein is set forth to the principle and embodiment of the present invention, above reality
The explanation for applying example is only intended to help and understands the method for the present invention and its core concept；Simultaneously for the general technology of this area
Personnel, according to the thought of the present invention, will change in specific embodiments and applications, in sum, this theory
Bright book content should not be construed as limiting the invention.
Claims (12)
1. the phonetic entry control method of a kind of wearable device, it is characterised in that methods described includes：
Start first mike and second microphone of the wearable device, first mike is bone conduction Mike
Wind；
First vibration signal of bone medium transmission is received by first mike and is converted into first vibration signal
First audio signal, and the second vibration signal of air dielectric transmission is received and by described second by the second microphone
Vibration signal is converted into the second audio signal；
Noise reduction process is carried out to first audio signal using second audio signal and obtains the 3rd audio signal, and by institute
State the 3rd audio signal and be defined as the audio signal that wearer is input into voice.
2. method according to claim 1, it is characterised in that methods described also includes：
Bone-conduction mode, the bone-conduction mode is switched to be used to need what is played the play mode of the wearable device
4th audio signal is converted into the 3rd vibration signal and by bone medium transmission.
3. method according to claim 2, it is characterised in that it is described using second audio signal to first sound
Frequency signal carries out noise reduction process and obtains before the 3rd audio signal, and methods described also includes：
Whether detect in first audio signal comprising the 4th audio signal, when the test results is yes, filter described
The 4th audio signal included in first audio signal.
4. method according to claim 3, it is characterised in that it is described using second audio signal to first sound
Frequency signal carries out noise reduction process and obtains after the 3rd audio signal, it is described by the 3rd audio signal be defined as wearer institute it is defeated
Before entering the audio signal of voice, methods described also includes：
Detect in the 3rd audio signal with the presence or absence of Oscillation Amplitude less than or equal to the audio signal for presetting Oscillation Amplitude threshold value,
When the test results is yes, filter Oscillation Amplitude in the 3rd audio signal and be less than or equal to the default Oscillation Amplitude threshold value
Audio signal, obtains the 3rd audio signal after noise reduction；
It is described that 3rd audio signal is defined as into the audio signal that wearer is input into voice, including：
The 3rd audio signal after the noise reduction is defined as into the audio signal that wearer is input into voice.
5. the method according to claim 3 or 4, it is characterised in that described to filter what is included in first audio signal
4th audio signal, including：
Filter in first audio signal with the 4th audio signal frequency identical audio signal；Or,
And frequency identical audio signal contrary with the 4th audio signal amplitude is weighted into first audio signal
The 4th audio signal included in filter first audio signal.
6. the method according to any one of claim 1-5, it is characterised in that it is described using second audio signal to institute
State the first audio signal and carry out noise reduction process and obtain the 3rd audio signal, including：
The audio content of second audio signal and the audio content of first audio signal are analyzed, described second is obtained
Identical audio content between audio signal and first audio signal；
For in first audio signal with the corresponding first object audio signal of the identical audio content and described
Audio signal overlap-add operation, and pin are performed in two audio signals with corresponding second target audio signal of the identical audio content
Audio signal in first audio signal in addition to the first object audio signal is performed and filters operation, obtain the 3rd
Audio signal.
7. a kind of wearable device, it is characterised in that the wearable device includes start unit, processing unit, noise reduction unit
And determining unit, wherein：
The start unit, for starting first mike and second microphone of the wearable device, first wheat
Gram wind is bone-conduction microphone；
The processing unit, for the first vibration signal of bone medium transmission being received by first mike and by described the
One vibration signal is converted into the first audio signal, and receives the second vibration of air dielectric transmission by the second microphone
Second vibration signal is simultaneously converted into the second audio signal by signal；
The noise reduction unit, for noise reduction process to be carried out to first audio signal using second audio signal is obtained
Three audio signals；
The determining unit, for the 3rd audio signal to be defined as into the audio signal that wearer is input into voice.
8. wearable device according to claim 7, it is characterised in that the wearable device also includes switch unit,
Wherein：
The switch unit, for the play mode of the wearable device to be switched to into bone-conduction mode, the bone conduction mould
Formula is used to for the 4th audio signal for needing to play to be converted into the 3rd vibration signal and by bone medium transmission.
9. wearable device according to claim 8, it is characterised in that the wearable device also includes detector unit,
Wherein：
The detector unit, for being carried out to first audio signal using second audio signal in the noise reduction unit
Noise reduction process is obtained before the 3rd audio signal, detects in first audio signal whether include the 4th audio signal；
The noise reduction unit, is additionally operable to include the 4th audio frequency in the detector unit detects first audio signal
During signal, the 4th audio signal included in first audio signal is filtered.
10. wearable device according to claim 9, it is characterised in that the detector unit, is additionally operable in the noise reduction
Unit using second audio signal first audio signal is carried out noise reduction process obtain after the 3rd audio signal with
And be defined as the 3rd audio signal before wearer is input into the audio signal of voice in the determining unit, detect institute
State in the 3rd audio signal with the presence or absence of Oscillation Amplitude less than or equal to the audio signal for presetting Oscillation Amplitude threshold value；
The noise reduction unit, is additionally operable to when to detect that exist in the 3rd audio signal Oscillation Amplitude default less than or equal to described
During the audio signal of Oscillation Amplitude threshold value, filter Oscillation Amplitude in the 3rd audio signal and be less than or equal to the default vibration width
The audio signal of degree threshold value, obtains the 3rd audio signal after noise reduction；
3rd audio signal is defined as the concrete mode that wearer is input into the audio signal of voice by the determining unit
For：
The 3rd audio signal after the noise reduction is defined as into the audio signal that wearer is input into voice.
11. wearable devices according to claim 9 or 10, it is characterised in that the noise reduction unit filters described first
The concrete mode of the 4th audio signal included in audio signal is：
Filter in first audio signal with the 4th audio signal frequency identical audio signal；Or,
And frequency identical audio signal contrary with the 4th audio signal amplitude is weighted into first audio signal
The 4th audio signal included in filter first audio signal.
12. wearable devices according to any one of claim 7-11, it is characterised in that the noise reduction unit is using described
Second audio signal carries out noise reduction process to first audio signal and obtains the concrete mode of the 3rd audio signal：
The audio content of second audio signal and the audio content of first audio signal are analyzed, described second is obtained
Identical audio content between audio signal and first audio signal；
For in first audio signal with the corresponding first object audio signal of the identical audio content and described
Audio signal overlap-add operation, and pin are performed in two audio signals with corresponding second target audio signal of the identical audio content
Audio signal in first audio signal in addition to the first object audio signal is performed and filters operation, obtain the 3rd
Audio signal.
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