CN105374364B - Signal processing method and electronic equipment - Google Patents
Signal processing method and electronic equipment Download PDFInfo
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- CN105374364B CN105374364B CN201410422376.1A CN201410422376A CN105374364B CN 105374364 B CN105374364 B CN 105374364B CN 201410422376 A CN201410422376 A CN 201410422376A CN 105374364 B CN105374364 B CN 105374364B
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Abstract
The invention discloses a kind of signal processing method and electronic equipments, which comprises obtains the first trigger action；First trigger action is responded, the first speech signal is received, first speech signal derives from the second electronic equipment；Detect operating mode locating for first electronic equipment itself；When detecting in first mode, the identification information of second electronic equipment is obtained；Acquired identification information is matched with phonic signal character library, obtain the phonic signal character of second electronic device user, wherein, the phonic signal character library includes the phonic signal character of at least one second electronic device user and the corresponding relationship of the second electronic device identification information；Based on obtained phonic signal character, first speech signal is handled, to reduce the noise of first speech signal.According to the technical solution of the present invention, it can be obviously improved the speech intelligibility using microphone playback, promote user experience.
Description
Technical field
The present invention relates to signal processing technology more particularly to a kind of signal processing methods and electronic equipment.
Background technique
Generally using multi-microphone noise reduction technology to realize in communication process clearly in electronic equipment such as smart phone
Sound effect in the technology, collects call voice using a microphone, collects noise using another microphone, then
By the noise filtering in call voice.But it will affect noise filtering when electronic device works are in hands-free mode or vehicle-mounted mode
Effect；The relevant technologies are usually the de-noising in the way of dual microphone or multi-microphone (i.e. microphone array): using therein
One microphone specially collects noise, but under hands-free mode or vehicle-mounted mode, due to call voice often come from it is multiple
Direction can not effectively collect noise, also, the effect in order to guarantee collection call voice using particular microphone at this time, often
A microphone can be only used and collect call voice (collecting the effect of multi-person speech using a microphone), this results in nothing
Method is effectively filtered out to by the noise in call voice, affects communication effect.
Summary of the invention
The embodiment of the present invention provides a kind of signal processing method and electronic equipment, can be obviously improved and utilize microphone playback
Speech intelligibility, promoted user experience.
The technical solution of the embodiment of the present invention is achieved in that
The embodiment of the present invention provides a kind of signal processing method, is applied in the first electronic equipment, which comprises
Obtain the first trigger action；
First trigger action is responded, the first speech signal is received, first speech signal derives from the second electronics
Equipment；
Detect operating mode locating for first electronic equipment itself；
When detecting in first mode, the identification information of second electronic equipment is obtained；
Acquired identification information is matched with phonic signal character library, obtains second electronic device user
Phonic signal character, wherein
The phonic signal character library includes phonic signal character and the institute of at least one second electronic device user
State the corresponding relationship of the second electronic device identification information；
Based on obtained phonic signal character, first speech signal is handled, it is logical to reduce described first
Talk about the noise of signal.
The embodiment of the present invention also provides a kind of first electronic equipment, and first electronic equipment includes:
Acquiring unit, for obtaining the first trigger action；
Receiving unit receives the first speech signal, first speech signal is come for responding first trigger action
Derived from the second electronic equipment；
Detection unit, for detecting operating mode locating for first electronic equipment itself；
Second acquisition unit, for obtaining second electronics when the detection unit is detected in first mode
The identification information of equipment；
Matching unit obtains described second for matching acquired identification information with phonic signal character library
The phonic signal character of electronic device user, wherein the phonic signal character library includes that at least one described second electronics is set
The corresponding relationship of the phonic signal character of standby user and the second electronic device identification information；
Audio Processing Unit, for handling first speech signal based on obtained phonic signal character,
To reduce the noise of first speech signal.
In the present embodiment, having the second electronic device user is safeguarded in phonic signal character library for the second electronic equipment
Phonetic feature, in this way, the phonic signal character based on the second electronic device user, can recognize that from the second electronic equipment
Voice signal in speech signal realizes the noise reduction to speech signal so as to reduce noise in speech signal.
Detailed description of the invention
Fig. 1 is the implementation process schematic diagram of signal processing method in the embodiment of the present invention one；
Fig. 2 is the implementation process schematic diagram of signal processing method in the embodiment of the present invention two；
Fig. 3 a is the implementation process schematic diagram of signal processing method in the embodiment of the present invention three；
Fig. 3 b is the schematic diagram of prompt processing the second electronic equipment incoming call in the embodiment of the present invention three；
Fig. 4 a is the implementation process schematic diagram of signal processing method in the embodiment of the present invention four；
Fig. 4 b is the schematic diagram for the second electronic equipment that setting needs to parse voice signal in the embodiment of the present invention four；
Fig. 5 is the implementation process schematic diagram of signal processing method in the embodiment of the present invention five；
Fig. 6 is the implementation process schematic diagram of signal processing method in the embodiment of the present invention six；
Fig. 7 is the structural schematic diagram of electronic equipment in the embodiment of the present invention seven.
Specific embodiment
Inventor has found in the practice of the invention, in the related technology, when electronic device works in hands-free mode or
When vehicle-mounted mode, due to call voice can from multiple directions (such as more people using same electronic equipment and peer user into
Row videoconference), noise, also, the effect in order to guarantee collection call voice can not be effectively collected using multiple microphones at this time
Fruit is often only used a microphone and collects call voice (being collected the effect of multi-person speech using a microphone), this
It results in not effectively filtering out to by the noise in call voice, affects communication effect；
Inventor also found, (be with the second electronic equipment for the electronic equipment conversed with the first electronic equipment
Example), if it is possible to the phonic signal character of all users of the second electronic equipment is got, then, it (is used only in first mode
The mode that one microphone is conversed) in, before carrying out playback using microphone, received speech signal can be utilized
The signal of second electronic device user phonic signal character (being referred to as vocal print feature) is handled, and is reduced in speech signal
Noise, so as to be obviously improved utilize microphone playback speech intelligibility, promoted user experience.
Invention is further described in detail in the following with reference to the drawings and specific embodiments.
Embodiment one
The present embodiment records a kind of signal processing method, is applied in the first electronic equipment, as shown in Figure 1, the present embodiment
The information processing method of record the following steps are included:
Step 101, the first trigger action is obtained.
First trigger action is the operation for triggering the first electronic equipment and receiving speech signal, and the first trigger action can be with
Voice operating or touch control operation；It is not construed as limiting in the present embodiment.
Step 102, first trigger action is responded, the first speech signal is received, first speech signal derives from
Second electronic equipment.
Step 103, operating mode locating for first electronic equipment itself is detected.
Step 104, when detecting in first mode, the identification information of second electronic equipment is obtained.
Here, the first mode be single microphone call mode (namely the first electronics using single microphone converse
For example vehicle-mounted mode of mode, hands-free mode)；In the first mode in order to guarantee that communication effect, the first electronic equipment only activate one
Microphone is conversed.
Step 105, acquired identification information is matched with phonic signal character library, obtains second electronics and sets
The phonic signal character of standby user.
Wherein, the phonic signal character library includes the phonic signal character of at least one second electronic device user
With the corresponding relationship of the second electronic device identification information；That is, the user of the second electronic equipment can be right to be multiple
In each second electronic device user, there are the phonic signal characters of the user and the second electricity in phonic signal character library
The corresponding relationship of sub- equipment identification information；Here, the phonic signal character (being referred to as vocal print feature) can be using
Spectral coefficient such as mel-frequency cepstrum coefficient (MFCC, Mel-Frequency Cepstral Coefficients) characterization；Described
The identification information of two electronic equipments can be at least one using information identified below: mobile device international identity code (IMEI,
International Mobile Equipment Identity)；Mobile subscriber number (MSISDN, Mobile
Subscriber International ISDN/PSTN number)。
Step 106, it is based on obtained phonic signal character, first speech signal is handled, to reduce
State the noise in the first speech signal.
As an example, can using following noise reduction algorithm any one, will not be met in the first speech signal gained
To the signal (being determined as noise in the present embodiment) of phonic signal character filter out: Noise gate noise reduction algorithm；Sample noise reduction algorithm；
Filter noise reduction algorithm.
After being disposed to the first speech signal, also using treated, the first speech signal carries out playback.
The noise reduction of speech signal in first mode is illustrated in the present embodiment, it should be pointed out that the present embodiment
The technical solution of record can be applied equally to the noise reduction process in multi-microphone call mode.
In the present embodiment, having the second electronic device user is safeguarded in phonic signal character library for the second electronic equipment
Phonetic feature, in this way, the phonic signal character based on the second electronic device user, can recognize that from the second electronic equipment
Voice signal in speech signal realizes the noise reduction to speech signal so as to reduce noise in speech signal.
Embodiment two
In practical application, phonic signal character library can be by the first electronic equipment by parsing in non-single microphone call mould
History speech signal under formula (being also referred to as second mode in the present embodiment) obtains, and inventor sends out in the practice of the invention
It is existing, it, will be received logical since particular microphone can be used to collect noise when the first electronic equipment is conversed under the second mode
It is exported after talking about target signal filter noise by the microphone for playback；In the speech signal exported due to playback microphone substantially not
Containing noise, therefore, the phonic signal character of the second electronic equipment can be obtained based on the speech signal of pronunciation microphone output,
The noise reduction process for obtaining phonic signal character library and being carried out based on phonic signal character library is illustrated below.
The present embodiment records a kind of signal processing method, is applied in the first electronic equipment, as shown in Fig. 2, the present embodiment
The information processing method of record the following steps are included:
Step 201, the second speech signal is received.
Step 202, second speech signal is parsed, the phonic signal character of second speech signal is obtained.
Wherein, second speech signal is the call letter received when first electronic equipment is in second mode
Number；The second mode is (by taking two microphones as an example, to be set as the first microphone and the use at least two microphones to converse
Two microphones) mode, at this point, due to can use the first microphone collect noise, received speech signal is filtered out into rear noise
It is exported afterwards by second microphone；Due to not containing noise in the speech signal of second microphone output, it can be based on the
The speech signal of two microphones output obtains the phonic signal character of the second electronic device user.
Step 203, using obtained phonic signal character, the voice letter is established in the phonic signal character library
Number feature, with second speech signal from the second electronic equipment identification information corresponding relationship.
It should be pointed out that step 201 to step 203 can be performed a plurality of times in practical application.
Subsequent step is the processing that the phonic signal character library based on foundation carries out noise reduction.
Step 204, the first trigger action is obtained.
First trigger action is the operation for triggering the first electronic equipment and receiving speech signal, and the first trigger action can be with
Voice operating or touch control operation；It is not construed as limiting in the present embodiment.
Step 205, first trigger action is responded, the first speech signal is received, first speech signal derives from
Second electronic equipment.
Step 206, operating mode locating for first electronic equipment itself is detected.
Step 207, when detecting in first mode, the identification information of second electronic equipment is obtained.
Here, the first mode be single microphone call mode (namely the first electronics using single microphone converse
For example vehicle-mounted mode of mode, hands-free mode)；In the first mode in order to guarantee that communication effect, the first electronic equipment only activate one
Microphone is for conversing.
Step 208, acquired identification information is matched with phonic signal character library, obtains second electronics and sets
The phonic signal character of standby user.
Wherein, the phonic signal character library includes the phonic signal character of at least one second electronic device user
With the corresponding relationship of the second electronic device identification information；That is, the user of the second electronic equipment can be right to be multiple
In each second electronic device user, there are the phonic signal characters of the user and the second electricity in phonic signal character library
The corresponding relationship of sub- equipment identification information；Here, the phonic signal character (being referred to as vocal print feature) can be using
Spectral coefficient characterization；The identification information of second electronic equipment can be at least one using information identified below: IMEI or
MSISDN。
Step 209, it is based on obtained phonic signal character, first speech signal is handled, to reduce
State the noise in the first speech signal.
As an example, can using following noise reduction algorithm any one, will not be met in the first speech signal gained
To the signal (being determined as noise in the present embodiment) of phonic signal character filter out: Noise gate noise reduction algorithm；Sample noise reduction algorithm；
Filter noise reduction algorithm.
After being disposed to the first speech signal, also using treated, the first speech signal carries out playback.
The noise reduction of speech signal in first mode is illustrated in the present embodiment, it should be pointed out that the present embodiment
The technical solution of record can be applied equally to the noise reduction process in multi-microphone call mode.
In the present embodiment, having the second electronic device user is safeguarded in phonic signal character library for the second electronic equipment
Phonetic feature, in this way, the phonic signal character based on the second electronic device user, can recognize that from the second electronic equipment
Voice signal in speech signal realizes the noise reduction to speech signal so as to reduce noise in speech signal.
Embodiment three
In practical application, it is contemplated that hung up when connecting phone in the presence of needs or hands-free scene, the first electronic equipment receive
To the second electronic equipment incoming call when, can prompt the user whether parsing this time incoming call speech signal obtain the second electronic equipment
The phonetic feature of user thus is avoided that and parses to the speech signal in hands-free scene, keeps phonic signal character inaccurate
Problem.
The present embodiment records a kind of signal processing method, is applied in the first electronic equipment, as shown in Figure 3a, the present embodiment
The information processing method of record the following steps are included:
Step 301, the second speech signal is received.
Before receiving the second speech signal, the first electronic equipment receives the schematic diagram responded when calling as schemed
Shown in 3b, to prompt user to perform the following operation:
1) it connects and parses voice signal；2) it only turns on；3) it hangs up.
Step 302, the second trigger action is received.
Step 303, second trigger action is parsed, determines instruction associated by second trigger action.
(instruction for connecting and parsing phonic signal character) is instructed to close when parsing second trigger action and first
When connection, show that user indicates to connect and parses phonic signal character by trigger action, then executes parsing the second call letter
Number operation.
Step 304, second speech signal is parsed, the phonic signal character of second speech signal is obtained.
Wherein, second speech signal is the call letter received when first electronic equipment is in second mode
Number；The second mode is (by taking two microphones as an example, to be set as the first microphone and the use at least two microphones to converse
Two microphones) mode, at this point, due to can use the first microphone collect noise, received speech signal is filtered out into rear noise
It is exported afterwards by second microphone；Due to not containing noise in the speech signal of second microphone output, it can be based on the
The speech signal of two microphones output obtains the phonic signal character of the second electronic equipment.
Step 305, using obtained phonic signal character, the voice letter is established in the phonic signal character library
Number feature, with second speech signal from the second electronic equipment identification information corresponding relationship.
Subsequent step is the processing that the phonic signal character library based on foundation carries out noise reduction.
Step 306, the first trigger action is obtained.
First trigger action is the operation for triggering the first electronic equipment and receiving speech signal, and the first trigger action can be with
Voice operating or touch control operation；It is not construed as limiting in the present embodiment.
Step 307, first trigger action is responded, the first speech signal is received, first speech signal derives from
Second electronic equipment.
Step 308, operating mode locating for first electronic equipment itself is detected.
Step 309, when detecting in first mode, the identification information of second electronic equipment is obtained.
Here, the first mode be single microphone call mode (namely the first electronics using single microphone converse
For example vehicle-mounted mode of mode, hands-free mode)；In the first mode in order to guarantee that communication effect, the first electronic equipment only activate one
Microphone is for conversing.
Step 310, acquired identification information is matched with phonic signal character library, obtains second electronics and sets
The phonic signal character of standby user.
Wherein, the phonic signal character library includes the phonic signal character of at least one second electronic device user
With the corresponding relationship of the second electronic device identification information；That is, the user of the second electronic equipment can be right to be multiple
In each second electronic device user, there are the phonic signal characters of the user and the second electricity in phonic signal character library
The corresponding relationship of sub- equipment identification information；Here, the phonic signal character (being referred to as vocal print feature) can be using
Spectral coefficient such as MFCC characterization；The identification information of second electronic equipment can be at least one using information identified below: IMEI；
MSISDN。
Step 311, it is based on obtained phonic signal character, first speech signal is handled, to reduce
State the noise in the first speech signal.
As an example, can using following noise reduction algorithm any one, will not be met in the first speech signal gained
To the signal (being determined as noise in the present embodiment) of phonic signal character filter out: Noise gate noise reduction algorithm；Sample noise reduction algorithm；
Filter noise reduction algorithm.
After being disposed to the first speech signal, also using treated, the first speech signal carries out playback.
The noise reduction of speech signal in first mode is illustrated in the present embodiment, it should be pointed out that the present embodiment
The technical solution of record can be applied equally to the noise reduction process in multi-microphone call mode.
In the present embodiment, having the second electronic device user is safeguarded in phonic signal character library for the second electronic equipment
Phonetic feature, in this way, the phonic signal character based on the second electronic device user, can recognize that from the second electronic equipment
Voice signal in speech signal realizes the noise reduction to speech signal so as to reduce noise in speech signal.
Example IV
In practical application, it is contemplated that the first electronic equipment do not need to the speech signal from all second electronic equipments into
Row parsing obtains phonic signal character, and therefore, which the second electricity the first electronic equipment can determine according to the setting of user from
The speech signal of sub- equipment, which is parsed, has obtained phonic signal character.
The present embodiment records a kind of signal processing method, is applied in the first electronic equipment, as shown in fig. 4 a, the present embodiment
The information processing method of record the following steps are included:
Step 401, by second speech signal from the second electronic equipment identification information, with default mark believe
Breath is matched；If it does, then executing step 403；Otherwise, step 402 is executed.
That is, user can be independently arranged need that the speech signal for learning which the second electronic equipment is parsed to obtain
Phonic signal character enhances customization；To be customized the schematic diagram such as figure of the second electronic equipment that needs learn
Shown in 4b.
Step 402, second speech signal is received.
Playback is carried out using second speech signal.
Step 403, second speech signal is received, second speech signal is parsed, obtains the second call letter
Number phonic signal character.
Wherein, second speech signal is the call letter received when first electronic equipment is in second mode
Number；The second mode is (by taking two microphones as an example, to be set as the first microphone and the use at least two microphones to converse
Two microphones) mode, at this point, due to can use the first microphone collect noise, received speech signal is filtered out into rear noise
It is exported afterwards by second microphone；Due to not containing noise in the speech signal of second microphone output, it can be based on the
The speech signal of two microphones output obtains the phonic signal character of the second electronic equipment.
In step 403, when parsing the first speech signal, playback also is carried out using the first speech signal.
Step 404, using obtained phonic signal character, the voice letter is established in the phonic signal character library
Number feature, with second speech signal from the second electronic equipment identification information corresponding relationship.
Step 405, the first trigger action is obtained.
First trigger action is the operation for triggering the first electronic equipment and receiving speech signal, and the first trigger action can be with
Voice operating or touch control operation；It is not construed as limiting in the present embodiment.
Step 406, first trigger action is responded, the first speech signal is received, first speech signal derives from
Second electronic equipment.
Step 407, operating mode locating for first electronic equipment itself is detected.
Step 408, when detecting in first mode, the identification information of second electronic equipment is obtained.
Here, the first mode be single microphone call mode (namely the first electronics using single microphone converse
For example vehicle-mounted mode of mode, hands-free mode)；In the first mode in order to guarantee that communication effect, the first electronic equipment only activate one
Microphone is for conversing.
Step 409, acquired identification information is matched with phonic signal character library, obtains second electronics and sets
The phonic signal character of standby user.
Wherein, the phonic signal character library includes the phonic signal character of at least one second electronic device user
With the corresponding relationship of the second electronic device identification information；That is, the user of the second electronic equipment can be right to be multiple
In each second electronic device user, there are the phonic signal characters of the user and the second electricity in phonic signal character library
The corresponding relationship of sub- equipment identification information；Here, the phonic signal character (being referred to as vocal print feature) can be using
Spectral coefficient such as MFCC characterization；The identification information of second electronic equipment can be at least one using information identified below: IMEI；
MSISDN。
Step 410, it is based on obtained phonic signal character, first speech signal is handled, to reduce
State the noise in the first speech signal.
As an example, can using following noise reduction algorithm any one, will not be met in the first speech signal gained
To the signal (being determined as noise in the present embodiment) of phonic signal character filter out: Noise gate noise reduction algorithm；Sample noise reduction algorithm；
Filter noise reduction algorithm.
After being disposed to the first speech signal, also using treated, the first speech signal carries out playback.
The noise reduction of speech signal in first mode is illustrated in the present embodiment, it should be pointed out that the present embodiment
The technical solution of record can be applied equally to the noise reduction process in multi-microphone call mode.
In the present embodiment, having the second electronic device user is safeguarded in phonic signal character library for the second electronic equipment
Phonetic feature, in this way, the phonic signal character based on the second electronic device user, can recognize that from the second electronic equipment
Voice signal in speech signal realizes the noise reduction to speech signal so as to filter out noise in speech signal.
Embodiment five
The present embodiment records a kind of signal processing method, is applied in the first electronic equipment, as shown in figure 5, the present embodiment
The information processing method of record the following steps are included:
Step 501, the first trigger action is obtained.
First trigger action is the operation for triggering the first electronic equipment and receiving speech signal, and the first trigger action can be with
Voice operating or touch control operation；It is not construed as limiting in the present embodiment.
Step 502, first trigger action is responded, the first speech signal is received, first speech signal derives from
Second electronic equipment.
Step 503, operating mode locating for first electronic equipment itself is detected.
Step 504, when detecting in first mode, the identification information of second electronic equipment is obtained.
Here, the first mode be single microphone call mode (namely the first electronics using single microphone converse
For example vehicle-mounted mode of mode, hands-free mode)；In the first mode in order to guarantee that communication effect, the first electronic equipment only activate one
Microphone is for conversing.
Step 505, acquired identification information is matched with phonic signal character library, obtains second electronics and sets
The phonic signal character of standby user.
Wherein, the phonic signal character library includes the phonic signal character of at least one second electronic device user
With the corresponding relationship of the second electronic device identification information；That is, the user of the second electronic equipment can be right to be multiple
In each second electronic device user, there are the phonic signal characters of the user and the second electricity in phonic signal character library
The corresponding relationship of sub- equipment identification information；Here, the phonic signal character (being referred to as vocal print feature) can be using
Spectral coefficient such as MFCC cepstrum (MFCC) characterization；The identification information of second electronic equipment can use information identified below
It is at least one:
Mobile device international identity code (IMEI, International Mobile Equipment Identity)；It is mobile
Subscriber Number (MSISDN, Mobile Subscriber International ISDN/PSTN number).
Step 506, it is based on obtained phonic signal character, by first speech signal and the phonic signal character
Matched voice signal is enhanced；And/or it filters out not matched with the phonic signal character in first speech signal
Voice signal.
After being disposed to the first speech signal, also using treated, the first speech signal carries out playback.
As an example, can using following noise reduction algorithm any one, will not be met in the first speech signal gained
To the signal (being determined as noise in the present embodiment) of phonic signal character filter out: Noise gate noise reduction algorithm；Sample noise reduction algorithm；
Filter noise reduction algorithm.
The noise reduction of speech signal in first mode is illustrated in the present embodiment, it should be pointed out that the present embodiment
The technical solution of record can be applied equally to the noise reduction process in multi-microphone call mode.
In the present embodiment, having the second electronic device user is safeguarded in phonic signal character library for the second electronic equipment
Phonetic feature, in this way, the phonic signal character based on the second electronic device user, can recognize that from the second electronic equipment
Voice signal in speech signal realizes the noise reduction to speech signal so as to filter out noise in speech signal.
Embodiment six
In practical application, it is contemplated that following application scenarios, when user A is electric to first using the second electronic equipment of user B
When sub- equipment initiates call, due to the phonic signal character for having user A not stored in the first electronic equipment, if the first electricity at this time
Sub- equipment carries out noise reduction to voice signal using the phonic signal character of user B, will be unable to reach expected noise reduction effect；Cause
This can also parse the first call after the first electronic equipment receives the first speech signal from the second electronic equipment
Signal obtains phonetic feature corresponding with the second electronic device identification in phonetic feature library phonic signal character matching, when matching at
When function, first speech signal of the mark from the second electronic equipment is the speech signal of the actual user of the second electronic equipment, this
When can use the corresponding phonic signal character of the second electronic device identification the first speech signal handled；When it fails to match
When, identify the call letter that current the first speech signal from the second electronic equipment is not the actual user of the second electronic equipment
Number, it may not need the first speech signal is handled using the corresponding phonic signal character of the second electronic device identification at this time,
It is specifically described below.
The present embodiment records a kind of signal processing method, is applied in the first electronic equipment, as shown in fig. 6, the present embodiment
The information processing method of record the following steps are included:
Step 601, the first trigger action is obtained.
First trigger action is the operation for triggering the first electronic equipment and receiving speech signal, and the first trigger action can be with
Voice operating or touch control operation；It is not construed as limiting in the present embodiment.
Step 602, first trigger action is responded, the first speech signal is received, first speech signal derives from
Second electronic equipment.
Step 603, operating mode locating for first electronic equipment itself is detected.
Step 604, when detecting in first mode, the identification information of second electronic equipment is obtained.
Here, the first mode be single microphone call mode (namely the first electronics using single microphone converse
For example vehicle-mounted mode of mode, hands-free mode)；In the first mode in order to guarantee that communication effect, the first electronic equipment only activate one
Microphone is for conversing.
Step 605, acquired identification information is matched with phonic signal character library, obtains second electronics and sets
The phonic signal character of standby user.
Wherein, the phonic signal character library includes the phonic signal character of at least one second electronic device user
With the corresponding relationship of the second electronic device identification information；That is, the user of the second electronic equipment can be right to be multiple
In each second electronic device user, there are the phonic signal characters of the user and the second electricity in phonic signal character library
The corresponding relationship of sub- equipment identification information；Here, the phonic signal character (being referred to as vocal print feature) can be using
Spectral coefficient such as MFCC cepstrum (MFCC) characterization；The identification information of second electronic equipment can use information identified below
It is at least one:
Mobile device international identity code (IMEI, International Mobile Equipment Identity)；It is mobile
Subscriber Number (MSISDN, Mobile Subscriber International ISDN/PSTN number).
Step 606, first speech signal is parsed, the phonic signal character for corresponding to first speech signal is obtained.
Step 607, the phonic signal character for matching the first speech signal, it is special with the voice signal of the second electronic device user
Sign, if successful match, thens follow the steps 608；Otherwise, step 609 is executed.
When successful match, first speech signal of the mark from the second electronic equipment is the actual user of the second electronic equipment
Speech signal, can use at this time the corresponding phonic signal character of the second electronic device identification to the first speech signal at
Reason；When it fails to match, identifying current the first speech signal from the second electronic equipment is not that the second electronic equipment is actual
The speech signal of user, at this time without using the corresponding phonic signal character of the second electronic device identification to the first speech signal into
Row processing.
Step 608, the phonic signal character based on the second electronic device user, by first speech signal and institute's predicate
The voice signal of sound signal characteristic matching is enhanced；And/or filter out in first speech signal not with the voice signal
The voice signal of characteristic matching.
After being disposed in step 608 to the first speech signal, also using treated, the first speech signal is put
Sound.
As an example, can using following noise reduction algorithm any one, will not be met in the first speech signal gained
To the signal (being determined as noise in the present embodiment) of phonic signal character filter out: Noise gate noise reduction algorithm；Sample noise reduction algorithm；
Filter noise reduction algorithm.
Step 609, playback is carried out using the first speech signal.
The noise reduction of speech signal in first mode is illustrated in the present embodiment, it should be pointed out that the present embodiment
The technical solution of record can be applied equally to the noise reduction process in multi-microphone call mode.
In the present embodiment, having the second electronic device user is safeguarded in phonic signal character library for the second electronic equipment
Phonetic feature, in this way, the phonic signal character based on the second electronic device user, can recognize that from the second electronic equipment
Voice signal in speech signal realizes the noise reduction to speech signal so as to filter out noise in speech signal.
It need to be noted that: the description in following electronic equipment embodiment, with the above method description be it is similar, together
The beneficial effect of method describes, and does not repeat.For undisclosed technical detail in electronic equipment embodiment of the present invention, please refer to
The description of embodiment of the present invention method.
Embodiment seven
The present embodiment records a kind of first electronic equipment, as shown in fig. 7, first electronic equipment includes:
First acquisition unit 71, for obtaining the first trigger action；
Receiving unit 72 receives the first speech signal, first speech signal for responding first trigger action
From the second electronic equipment；
Detection unit 73, for detecting operating mode locating for first electronic equipment itself；
Second acquisition unit 74, for obtaining described second when the detection unit 73 is detected in first mode
The identification information of electronic equipment；
Matching unit 75 obtains described for matching acquired identification information with phonic signal character library
The phonic signal character of two electronic device users, wherein the phonic signal character library includes at least one described second electronics
The corresponding relationship of the phonic signal character of equipment user and the second electronic device identification information；
Audio Processing Unit 76, for being based on obtained phonic signal character, at first speech signal
Reason, to reduce the noise of first speech signal.
As an embodiment, the receiving unit 72 is also used to receive the first touching in the first acquisition unit 71
Before hair operation, the second speech signal is received；
The resolution unit is also used to parse second speech signal, obtains the voice letter of second speech signal
Number feature；Wherein, second speech signal is the call letter received when first electronic equipment is in second mode
Number, the second mode is different from the first mode；
The Audio Processing Unit 76 is also used to using the phonic signal character, in the phonic signal character library
Establish the phonic signal character, with second speech signal from the second electronic equipment identification information it is corresponding pass
System.
As an embodiment, the receiving unit 72 is also used to parse second call in the resolution unit
Before signal, the second trigger action is received；
The resolution unit is also used to parse second trigger action, determines associated by second trigger action
Instruction；When parsing second trigger action and be associated with the first instruction, the operation of parsing second speech signal is executed；
Wherein, first instruction parses the operation of second speech signal for instruction.
As an embodiment, the matching unit 75 is also used to parse second call in the resolution unit
Before signal, by second speech signal from the second electronic equipment identification information, with default identification information carry out
Matching；Upon a match, the operation that the resolution unit executes the second speech signal of the parsing is triggered.
As an embodiment, the Audio Processing Unit 76 is also used to first speech signal and institute's predicate
The voice signal of sound signal characteristic matching is enhanced；And/or filter out in first speech signal not with the voice signal
The voice signal of characteristic matching.
In practical application, first acquisition unit 71, detection unit 73, matching unit 75 can be by the first electronic equipments
It manages device or logic programmable gate array (FPGA) is realized；Receiving unit 72 can be by the baseband chip and antenna in the first electronic equipment
Unit is realized；Audio Processing Unit 76 can be realized by the digital signal processor (DSP) in the first electronic equipment.
In several embodiments provided by the present invention, it should be understood that disclosed device and method can pass through it
Its mode is realized.Apparatus embodiments described above are merely indicative, for example, the division of the unit, only
A kind of logical function partition, there may be another division manner in actual implementation, such as: multiple units or components can combine, or
It is desirably integrated into another system, or some features can be ignored or not executed.In addition, shown or discussed each composition portion
Mutual coupling or direct-coupling or communication connection is divided to can be through some interfaces, the INDIRECT COUPLING of equipment or unit
Or communication connection, it can be electrical, mechanical or other forms.
Above-mentioned unit as illustrated by the separation member, which can be or may not be, to be physically separated, aobvious as unit
The component shown can be or may not be physical unit, it can and it is in one place, it may be distributed over multiple network lists
In member；Some or all of units can be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
In addition, each functional unit in various embodiments of the present invention can be fully integrated in one processing unit, it can also
To be each unit individually as a unit, can also be integrated in one unit with two or more units；It is above-mentioned
Integrated unit both can take the form of hardware realization, can also realize in the form of hardware adds SFU software functional unit.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer readable storage medium, the program
When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned include: movable storage device, it is read-only
Memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or
The various media that can store program code such as person's CD.
If alternatively, the above-mentioned integrated unit of the present invention is realized in the form of software function module and as independent product
When selling or using, it also can store in a computer readable storage medium.Based on this understanding, the present invention is implemented
Substantially the part that contributes to existing technology can be embodied in the form of software products the technical solution of example in other words,
The computer software product is stored in a storage medium, including some instructions are used so that computer equipment (can be with
It is personal computer, server or network equipment etc.) execute all or part of each embodiment the method for the present invention.
And storage medium above-mentioned includes: that movable storage device, ROM, RAM, magnetic or disk etc. are various 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.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (8)
1. a kind of signal processing method is applied in the first electronic equipment, which is characterized in that the described method includes:
Obtain the first trigger action；
First trigger action is responded, the first speech signal is received, first speech signal derives from the second electronic equipment；
Detect operating mode locating for first electronic equipment itself；
When detecting in first mode, the identification information of second electronic equipment is obtained；
Acquired identification information is matched with phonic signal character library, obtains the voice of second electronic device user
Signal characteristic, wherein
The phonic signal character library includes the phonic signal character and described the of at least one second electronic device user
The corresponding relationship of two electronic device identification information；
Based on obtained phonic signal character, first speech signal is handled, to reduce the first call letter
Number noise；
Before the first trigger action of the acquisition, the method also includes:
Receive the second speech signal；
Second speech signal is parsed, the phonic signal character of second speech signal is obtained；Wherein, second call
Signal is the speech signal received when first electronic equipment is in second mode, the second mode and described first
Mode is different；
Using obtained phonic signal character, the phonic signal character and institute are established in the phonic signal character library
State the second speech signal from the second electronic equipment identification information corresponding relationship.
2. the method according to claim 1, wherein before the parsing second speech signal, the side
Method further include:
Receive the second trigger action；
Second trigger action is parsed, determines instruction associated by second trigger action；
When parsing second trigger action and be associated with the first instruction, the operation of parsing second speech signal is executed；
Wherein, first instruction parses the operation of second speech signal for instruction.
3. the method according to claim 1, wherein before the parsing second speech signal, the side
Method further include:
By second speech signal from the second electronic equipment identification information, matched with default identification information；
Upon a match, the operation of the second speech signal of the parsing is executed.
4. method according to any one of claims 1 to 3, which is characterized in that described special based on obtained voice signal
Sign, handles first speech signal, comprising:
First speech signal and the matched voice signal of the phonic signal character are enhanced；And/or
Filter out in first speech signal not with the matched voice signal of the phonic signal character.
5. a kind of first electronic equipment, which is characterized in that first electronic equipment includes:
Acquiring unit, for obtaining the first trigger action；
Receiving unit receives the first speech signal, first speech signal derives from for responding first trigger action
Second electronic equipment；
Detection unit, for detecting operating mode locating for first electronic equipment itself；
Second acquisition unit, for obtaining second electronic equipment when the detection unit is detected in first mode
Identification information；
Matching unit obtains second electronics for matching acquired identification information with phonic signal character library
The phonic signal character of equipment user, wherein the phonic signal character library includes that at least one described second electronic equipment is used
The corresponding relationship of the phonic signal character at family and the second electronic device identification information；
Audio Processing Unit is handled first speech signal, for being based on obtained phonic signal character to subtract
The noise of few first speech signal；
The equipment further includes resolution unit,
The receiving unit is also used to before the acquiring unit receives the first trigger action, receives the second speech signal；
The resolution unit obtains the phonic signal character of second speech signal for parsing second speech signal；
Wherein, second speech signal is the speech signal received when first electronic equipment is in second mode, described
Second mode is different from the first mode；
The Audio Processing Unit is also used to establish institute in the phonic signal character library using the phonic signal character
State phonic signal character, with second speech signal from the second electronic equipment identification information corresponding relationship.
6. the first electronic equipment according to claim 5, which is characterized in that
The receiving unit is also used to before the resolution unit parses second speech signal, receives the second triggering behaviour
Make；
The resolution unit is also used to parse second trigger action, determines instruction associated by second trigger action；
When parsing second trigger action and be associated with the first instruction, the operation of parsing second speech signal is executed；Wherein,
First instruction parses the operation of second speech signal for instruction.
7. the first electronic equipment according to claim 5, which is characterized in that
The matching unit is also used to before the resolution unit parses second speech signal, described second is conversed
Signal from the second electronic equipment identification information, matched with default identification information；Upon a match, the solution is triggered
Analysis unit executes the operation of the second speech signal of the parsing.
8. according to described in any item first electronic equipments of claim 5 to 7, which is characterized in that
The Audio Processing Unit is also used to first speech signal and the matched voice signal of the phonic signal character
Enhanced；And/or filter out in first speech signal not with the matched voice signal of the phonic signal character.
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| DE112017007005B4 (en) * | 2017-03-08 | 2023-03-30 | Mitsubishi Electric Corporation | ACOUSTIC SIGNAL PROCESSING DEVICE, ACOUSTIC SIGNAL PROCESSING METHOD AND HANDS-FREE COMMUNICATION DEVICE |
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