CN104376848B - Audio signal processing method and device - Google Patents
Audio signal processing method and device Download PDFInfo
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- CN104376848B CN104376848B CN201310349950.0A CN201310349950A CN104376848B CN 104376848 B CN104376848 B CN 104376848B CN 201310349950 A CN201310349950 A CN 201310349950A CN 104376848 B CN104376848 B CN 104376848B
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- ciphering equipment
- speech ciphering
- microphone
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Abstract
The invention provides a kind of audio signal processing method and device, methods described includes：Configure the pattern of portable speech ciphering equipment；When the portable speech ciphering equipment is in hands-free mode, enables the first microphone on the portable speech ciphering equipment body and second microphone and detect targeted voice signal in default beam area；When the portable speech ciphering equipment is not in hands-free mode, the first microphone detection targeted voice signal is enabled, enables the second microphone detection ambient noise signal, and noise reduction process is carried out to the targeted voice signal using the ambient noise signal.Pass through methods described and device, it is possible to achieve the portable speech ciphering equipment can obtain preferable voice quality in different modes.
Description
Technical field
The present invention relates to field of voice communication, more particularly to a kind of audio signal processing method and device.
Background technology
In the prior art, the single sound processing techniques of portable speech ciphering equipment generally use are believed to gather and handle voice
Number.It can not expire however, the portable speech ciphering equipment is moveable therefore single sound processing techniques in use
The voice quality demand of sufficient user.
It is, therefore, desirable to provide a kind of new audio signal processing method and device, to realize portable speech ciphering equipment in movement
During total energy obtain preferable voice quality.
The content of the invention
Present invention solves the technical problem that it is to provide a kind of audio signal processing method and device, to realize that portable voice is set
It is standby to obtain preferable voice quality in different modes.
The embodiment provides a kind of audio signal processing method, methods described includes：Portable voice is configured to set
Standby pattern；When the portable speech ciphering equipment is in hands-free mode, the first wheat on the portable speech ciphering equipment body is enabled
Gram wind and second microphone detect targeted voice signal in default beam area；When the portable speech ciphering equipment be not in it is hands-free
During pattern, the first microphone detection targeted voice signal is enabled, enables the second microphone detection ambient noise signal,
And noise reduction process is carried out to the targeted voice signal using the ambient noise signal.
Alternatively, when portable speech ciphering equipment is not in hands-free mode, methods described also includes：At portable speech ciphering equipment
When headset mode, the 3rd microphone detection targeted voice signal on earphone cord is enabled, enables first microphone or the
Two microphones detect ambient noise signal, and the targeted voice signal is carried out at noise reduction using the ambient noise signal
Reason.
Alternatively, when portable speech ciphering equipment is not in hands-free mode, methods described also includes：At portable speech ciphering equipment
When headset mode, enable first microphone and second microphone and detect targeted voice signal in default beam area.
Alternatively, the pattern of the configuration portable speech ciphering equipment includes：When the portable speech ciphering equipment receives use
When the hands-free instruction and the earphone jack of the portable speech ciphering equipment that family inputs are not attached to headset plug, by the portable voice
Equipment is arranged to hands-free mode；When the earphone jack of the portable speech ciphering equipment is connected to headset plug, by the portable language
Sound equipment is arranged to headset mode.
Alternatively, the pattern of the configuration portable speech ciphering equipment includes：When detect the portable speech ciphering equipment with
The distance between head of user is not attached to earphone more than the earphone jack of the first preset value and the portable speech ciphering equipment and inserted
During head, the portable speech ciphering equipment is arranged to hands-free mode；When the earphone jack of the portable speech ciphering equipment is connected to earphone
During plug, the portable speech ciphering equipment is arranged to headset mode.
Alternatively, the pattern of the configuration portable speech ciphering equipment includes：When detecting first microphone and
The signal amplitude difference that two microphones detect is not above the second preset value and the earphone jack of the portable speech ciphering equipment does not have
When being connected to headset plug, the portable speech ciphering equipment is arranged to hands-free mode；When the earphone of the portable speech ciphering equipment
When jack is connected to headset plug, the portable speech ciphering equipment is arranged to headset mode.
Alternatively, it is described that targeted voice signal progress noise reduction process is included using the ambient noise signal：Profit
Voice activity detection, noise estimation and speech enhan-cement are carried out with the difference of the ambient noise signal and the targeted voice signal
Processing.
Alternatively, target language message is detected in default beam area in enabled first microphone and second microphone
After number, methods described also includes：The targeted voice signal is filtered, to eliminate ambient noise signal.
Embodiments of the invention additionally provide a kind of speech signal processing device, and described device includes：Dispensing unit, it is used for
Configure the pattern of portable speech ciphering equipment；First processing units, for when the portable speech ciphering equipment is in hands-free mode, enabling
The first microphone and second microphone on the portable speech ciphering equipment body detect target language message in default beam area
Number；Second processing unit, for being not in hands-free mode when the portable speech ciphering equipment, enable the first microphone detection mesh
Poster sound signal, the second microphone detection ambient noise signal is enabled, and using the ambient noise signal to the mesh
Poster sound signal carries out noise reduction process.
Alternatively, described device also includes：3rd processing unit, for when portable speech ciphering equipment be not in hands-free mode but
During in headset mode, enable earphone cord on the 3rd microphone detection targeted voice signal, enable first microphone or
Second microphone detects ambient noise signal, and the targeted voice signal is carried out at noise reduction using the ambient noise signal
Reason.
Alternatively, described device also includes：Fourth processing unit, for when portable speech ciphering equipment be not in hands-free mode but
During in headset mode, enable first microphone and second microphone and detect target language message in default beam area
Number.
Alternatively, the dispensing unit includes：First configuration subelement, for receiving use when the portable speech ciphering equipment
When the hands-free instruction and the earphone jack of the portable speech ciphering equipment that family inputs are not connected to headset plug, by the portable language
Sound equipment is arranged to hands-free mode, and for when the earphone jack of the portable speech ciphering equipment is connected to headset plug, by institute
State portable speech ciphering equipment and be arranged to headset mode.
Alternatively, the dispensing unit includes：Second configuration subelement, for when detect the portable speech ciphering equipment with
When the distance between head of user is more than the first preset value and the earphone jack of the portable speech ciphering equipment is not connected to ear
During machine transplanting of rice head, the portable speech ciphering equipment is arranged to hands-free mode, and for when the earphone jack of the portable speech ciphering equipment
When being connected to headset plug, the portable speech ciphering equipment is arranged to headset mode.
Alternatively, the dispensing unit includes：3rd configuration subelement, for when detecting first microphone and the
When the signal amplitude difference that two microphones detect is not above the second preset value and the portable speech ciphering equipment earphone jack
When being not connected to headset plug, the portable speech ciphering equipment is arranged to hands-free mode, and for being set when the portable voice
When standby earphone jack is connected to headset plug, the portable speech ciphering equipment is arranged to headset mode.
Alternatively, the second processing unit includes：First noise reduction subelement, for using the ambient noise signal and
The difference of the targeted voice signal carries out voice activity detection, noise estimation and speech enhan-cement processing；3rd processing unit bag
Include：Second noise reduction subelement, for carrying out voice work using the difference of the ambient noise signal and the targeted voice signal
Dynamic detection, noise estimation and speech enhan-cement processing.
Alternatively, the first processing units include：3rd noise reduction subelement, in enabled first microphone and
After second microphone detects targeted voice signal in default beam area, the targeted voice signal is filtered, to disappear
Except ambient noise signal；Fourth processing unit includes：4th noise reduction subelement, in enabled first microphone and second
After microphone detects targeted voice signal in default beam area, the targeted voice signal is filtered, to eliminate the back of the body
Scape noise signal.
Compared with prior art, in the above-mentioned technical solutions, the pattern of the portable speech ciphering equipment is configured；When portable voice
When equipment is in hands-free mode, the first microphone and second microphone on the enabled portable speech ciphering equipment body are in default ripple
Targeted voice signal is detected in the range of beam；When portable speech ciphering equipment is not in hands-free mode, the first microphone inspection is enabled
Targeted voice signal is surveyed, enables the second microphone detection ambient noise signal, and using the ambient noise signal to institute
State targeted voice signal and carry out noise reduction process.That is, when the portable speech ciphering equipment is in different patterns, correspondingly
Using different audio signal processing methods, this has taken into full account the voice environment characteristic and hardware shape of equipment under different mode
State, preferable voice quality can be obtained in different modes by realizing the portable speech ciphering equipment.
Brief description of the drawings
Fig. 1 is the flow chart of audio signal processing method in the embodiment of the present invention one；
Fig. 2 is the flow chart of audio signal processing method in the embodiment of the present invention two；
Fig. 3 is the schematic diagram that portable speech ciphering equipment is in hands-free mode in the embodiment of the present invention；
Fig. 4 is the schematic diagram that portable speech ciphering equipment is in headset mode in the embodiment of the present invention；
Fig. 5 is the schematic diagram that portable speech ciphering equipment is in hand-held mode in the embodiment of the present invention；
Fig. 6 is the structural representation of speech signal processing device in one embodiment of the invention；
Fig. 7 is the structural representation of speech signal processing device in another embodiment of the present invention；
Fig. 8 is the structural representation of speech signal processing device in further embodiment of this invention.
Embodiment
To more fully understand those skilled in the art and realizing the present invention, referring to the drawings, pass through specific embodiment
It is described in detail.
Embodiment one
Fig. 1 is the flow chart of audio signal processing method in the embodiment of the present invention one.
Fig. 1 is refer to, methods described includes：Step S100 to S102.
Step S100, configure the pattern of portable speech ciphering equipment.
In an embodiment of the present invention, the portable speech ciphering equipment can be other portable voices such as mobile phone, tablet personal computer
Equipment.
As it was previously stated, the portable speech ciphering equipment is in use, can be changed with the relative position of target sound source,
And its hardware connection status can also change, then, in the step s 100, it is possible to according to the portable speech ciphering equipment with
The relative position of target sound source and its software and hardware state configure to its pattern.
In one embodiment of this invention, Fig. 3 is refer to, when the portable speech ciphering equipment receives the hands-free of user's input
When the earphone jack of instruction and the portable speech ciphering equipment is not connected to headset plug, the portable speech ciphering equipment is arranged to
Hands-free mode.
And when the portable speech ciphering equipment is not in hands-free mode, if detecting the earphone of the portable speech ciphering equipment
When jack is connected to headset plug, the portable speech ciphering equipment is arranged to headset mode, refer to Fig. 4.
And when the portable speech ciphering equipment receives the hands-free instruction of cancellation of user's input and the portable speech ciphering equipment
When earphone jack is not connected to headset plug, that is to say, that now, the portable speech ciphering equipment be both not in hands-free mode or
Headset mode is not in, the portable speech ciphering equipment is arranged to hand-held mode, refer to Fig. 5.
In another embodiment of the invention, without setting hands-free mode and cancellation by receiving the instruction of user's input
Hands-free mode, but distance-sensor can be set on the portable speech ciphering equipment, for detecting the portable speech ciphering equipment
With target sound source（The mouth of user）Distance, so as to configuring whether the portable speech ciphering equipment is in by judging the distance
Hands-free mode.
Fig. 3 is refer to, when the distance between head for detecting the portable speech ciphering equipment and user is default more than first
During value and when the earphone jack of the portable speech ciphering equipment is not connected to headset plug, the portable speech ciphering equipment is arranged to
Hands-free mode.First pre-determined distance can be set according to the demand of user.
Detect that the distance between the portable speech ciphering equipment and the head of user are not above first and preset on the contrary, working as
During value and when the earphone jack of the portable speech ciphering equipment is not connected to headset plug, the portable speech ciphering equipment was both not in
Hands-free mode is also not in headset mode, and the portable speech ciphering equipment is arranged into hand-held mode, refer to Fig. 5.
When the earphone jack of the portable speech ciphering equipment is connected to headset plug, the portable speech ciphering equipment is arranged to
Headset mode, it refer to Fig. 4.
In another embodiment of the present invention, equally without by receive user input instruction come set hands-free mode and
Cancellation hands-free mode, but the signal width detected by the first microphone on the portable speech ciphering equipment and second microphone
Difference is spent, to configure whether the portable speech ciphering equipment is in hands-free mode.Obviously, when the portable speech ciphering equipment is further away from institute
Target sound source is stated, the signal amplitude difference is smaller.
Fig. 3 is refer to, when the signal amplitude difference for detecting the first microphone MIC1 and second microphone MIC2 does not have
, will be described portable when having more than the second preset value and when the earphone jack of the portable speech ciphering equipment is not connected to headset plug
Speech ciphering equipment is arranged to hands-free mode, wherein, second preset value can be set according to user's request.
On the contrary, Fig. 5 is refer to, when the signal amplitude for detecting the first microphone MIC1 and second microphone MIC2
When difference is more than the second preset value and when the earphone jack of the portable speech ciphering equipment is not connected to headset plug, will described in just
Take speech ciphering equipment and be arranged to hand-held mode.
When the earphone jack of the portable speech ciphering equipment is connected to headset plug, the portable speech ciphering equipment is arranged to
Headset mode, it refer to Fig. 4.
After the pattern configurations of the portable speech ciphering equipment are good, it is possible to use different languages according to the pattern
Signal processing method.
Step S101, when portable speech ciphering equipment is in hands-free mode, enable the on the portable speech ciphering equipment body
One microphone and second microphone detect targeted voice signal in default beam area.
In an embodiment of the present invention, the hands-free mode can include hands-free voice call, hands-free video calling and exempt from
Propose speech recognition etc..
Specifically, Fig. 3 is refer to, in hands-free mode, the first microphone MIC1 and second microphone the MIC2 difference
Positioned at the bottom and top of the portable speech ciphering equipment, target sound source（The mouth of user）Positioned at the portable speech ciphering equipment just before
Side, can utilize Adaptive beamformer technology, the first microphone MIC1 and second microphone MIC2 is formed default ripple
Beam, the target sound source is pointed to, in the default beam area, receives targeted voice signal caused by the target sound source,
The targeted voice signal in the beam area can be with undistorted by and other beyond the default beam area
The voice signal in direction can be suppressed, so as to preferably improve the quality of the targeted voice signal.
It should be noted that the targeted voice signal after by Adaptive beamformer technical finesse may also include one
A little ambient noises, therefore, target voice is detected in default beam area in enabled first microphone and second microphone
After signal, the targeted voice signal can also be filtered, to eliminate ambient noise signal, such as spectrum-subtraction can be passed through
Or the methods of Wiener Filter Method, by the targeted voice signal after Adaptive beamformer technical finesse to being filtered.
Step S102, when portable speech ciphering equipment is not in hands-free mode, enable the first microphone detection target language
Sound signal, the second microphone detection ambient noise signal is enabled, and using the ambient noise signal to the target language
Sound signal carries out noise reduction process.
Specifically, Fig. 5 is refer to, when portable speech ciphering equipment is not in hands-free mode, the first microphone MIC1 and
Two microphone MIC2 are located at the bottom and top of the portable speech ciphering equipment respectively, can be using the first microphone MIC1
Main microphon, targeted voice signal is detected, and use the second microphone MIC2 as reference microphone, detection ambient noise letter
Number, then carry out voice activity detection using the difference of the ambient noise signal and the targeted voice signal, noise is estimated
Handled with speech enhan-cement, so as to carry out noise reduction process to the targeted voice signal, to obtain preferable voice quality.
It should be noted that when portable speech ciphering equipment is not in hands-free mode, the portable speech ciphering equipment may be at
Headset mode, headset mode can also be not in.Therefore whether headset mode is according to the portable equipment, can adopted respectively
With different method of speech processing, below will by implement two respectively to the portable speech ciphering equipment whether headset mode carry out it is detailed
It is thin to introduce.
Embodiment two
Fig. 2 is the flow chart of audio signal processing method in the embodiment of the present invention two.
Fig. 2 is refer to, methods described includes：Step S110 to S113.Wherein, step S110 and step S111 is respectively and real
The step S100 applied in example one is similar with step S101, and specific implementation process refer to embodiment one.
Step S112, when portable speech ciphering equipment is not in hands-free mode but is in headset mode, enable on earphone cord
3rd microphone detects targeted voice signal, enables the first microphone or second microphone the detection ambient noise signal, and
Noise reduction process, or enabled first microphone and second are carried out to the targeted voice signal using the ambient noise signal
Microphone detects targeted voice signal in default beam area.
Specifically, Fig. 4 is refer to, in headset mode, the first microphone MIC1 and second microphone the MIC2 difference
Positioned at the bottom and top of the portable speech ciphering equipment, the 3rd microphone MIC3 is located on the earphone cord, the target
Sound source（The mouth of user）Positioned at the front of the portable speech ciphering equipment, it is clear that the 3rd microphone MIC3 and the target
The distance of sound source is nearer relative to the first microphone MIC1 and second microphone MIC2, and the 3rd microphone MIC3 is obtained
Acoustic energy it is larger relative to the first microphone MIC1 and second microphone MIC2, therefore, can utilize the described 3rd
Microphone MIC3 is main microphon, detects targeted voice signal, and uses the first microphone MIC1 and second microphone
Any one in MIC2 is reference microphone, detects ambient noise signal, then utilizes the ambient noise signal and described
The difference of targeted voice signal carries out voice activity detection, noise estimation and speech enhan-cement processing, so as to the target voice
Signal carries out noise reduction process, to obtain preferable voice quality.
In headset mode, the first microphone MIC1 and second microphone MIC2 are also relative as hands-free mode
Away from sound source, therefore, in specific implementation, Adaptive beamformer technology can also be utilized, makes the first microphone MIC1
Default wave beam is formed with second microphone MIC2, points to the target sound source, in the default beam area, receives the mesh
Targeted voice signal caused by sound source is marked, to obtain the quality for preferably improving the targeted voice signal.
Step S113, when portable speech ciphering equipment is not in hands-free mode and is not in headset mode, enable described first
Microphone detects targeted voice signal, enables the second microphone detection ambient noise signal, and utilize the ambient noise
Signal carries out noise reduction process to the targeted voice signal.
Specifically, Fig. 5 is refer to, when portable speech ciphering equipment is not in hands-free mode and is not in headset mode, for example,
In hand-held mode, the first microphone MIC1 and second microphone MIC2 are located at the bottom of the portable speech ciphering equipment respectively
And top, it is clear that the distance of the first microphone MIC1 and the target sound source relative to the second microphone MIC2 compared with
Closely, the acoustic energy that the first microphone MIC1 is obtained is larger with respect to second microphone MIC2, therefore, can utilize described the
One microphone MIC1 is main microphon, detects targeted voice signal, and uses the second microphone MIC2 as reference microphone,
Ambient noise signal is detected, then carries out speech activity using the difference of the ambient noise signal and the targeted voice signal
Detection, noise estimation and speech enhan-cement processing, so as to carry out noise reduction process to the targeted voice signal, to obtain preferable language
Sound quality.
It is worth noting that, when the portable speech ciphering equipment is in hands-free mode or headset mode, first Mike
Difference is little between signal amplitude detected by wind MIC1 and second microphone MIC2, if still using the sound of hand-held mode
Sound treatment technology, preferable voice quality will not be obtained, therefore, according to the portable speech ciphering equipment and the relative position of target sound source
Put and its pattern is configured with its hardware connection status, and different sound processing techniques, energy are used according to different patterns
Enough realize that the portable speech ciphering equipment can obtain preferable voice quality in different modes.
Embodiments of the invention additionally provide a kind of speech signal processing device, refer to Fig. 6, and described device 200 includes：
Dispensing unit 210, for configuring the pattern of portable speech ciphering equipment；First processing units 220, for when the portable speech ciphering equipment
During in hands-free mode, the first microphone and second microphone on the enabled portable speech ciphering equipment body are in default wave beam model
Enclose interior detection targeted voice signal；Second processing unit 230, for being not in hands-free mode when the portable speech ciphering equipment, make
Energy the first microphone detection targeted voice signal, enables the second microphone detection ambient noise signal, and utilize institute
State ambient noise signal and noise reduction process is carried out to the targeted voice signal.
Fig. 7 is refer to, in an embodiment of the present invention, described device 200 can also include：3rd processing unit 240, use
Mesh is detected in the 3rd microphone when portable speech ciphering equipment is not in hands-free mode but is in headset mode, enabled on earphone cord
Poster sound signal, the first microphone or second microphone the detection ambient noise signal is enabled, and utilize the ambient noise
Signal carries out noise reduction process to the targeted voice signal.
Fig. 8 is refer to, in an embodiment of the present invention, described device 200 can also include：Fourth processing unit 250, use
In when portable speech ciphering equipment is not in hands-free mode but is in headset mode, first microphone and second microphone are enabled
Targeted voice signal is detected in default beam area.
In an embodiment of the present invention, the dispensing unit 210 can include：First configuration subelement（Figure is not shown）,
For receiving the hands-free instruction of user's input when the portable speech ciphering equipment and the earphone jack of the portable speech ciphering equipment does not have
When being connected to headset plug, the portable speech ciphering equipment is arranged to hands-free mode, and for when the portable speech ciphering equipment
Earphone jack when being connected to headset plug, the portable speech ciphering equipment is arranged to headset mode.
In an embodiment of the present invention, the dispensing unit 210 can include：Second configuration subelement（Figure is not shown）,
For when the distance between head for detecting the portable speech ciphering equipment and user is more than the first preset value and described portable
When the earphone jack of speech ciphering equipment is not connected to headset plug, the portable speech ciphering equipment is arranged to hands-free mode, and use
In when the earphone jack of the portable speech ciphering equipment is connected to headset plug, the portable speech ciphering equipment is arranged to earphone mould
Formula.
In an embodiment of the present invention, the dispensing unit 210 can include：3rd configuration subelement（Figure is not shown）,
Detect that the signal amplitude difference that first microphone and second microphone detect is not above the second preset value for working as
When and the earphone jack of portable speech ciphering equipment when being not connected to headset plug, the portable speech ciphering equipment is arranged to exempt from
Put forward pattern, and for when the earphone jack of the portable speech ciphering equipment is connected to headset plug, by the portable speech ciphering equipment
It is arranged to headset mode.
In an embodiment of the present invention, the second processing unit 230 can include：First noise reduction subelement（Figure does not show
Show）, for carrying out voice activity detection using the difference of the ambient noise signal and the targeted voice signal, noise is estimated
With speech enhan-cement processing；3rd processing unit 240 can include：Second noise reduction subelement（Figure is not shown）, for described in utilization
The difference of ambient noise signal and the targeted voice signal carries out voice activity detection, noise estimation and speech enhan-cement processing.
In an embodiment of the present invention, the first processing units 220 can include：3rd noise reduction subelement（Figure does not show
Show）, it is right for being preset in enabled first microphone and second microphone in beam area after detection targeted voice signal
The targeted voice signal is filtered, to eliminate ambient noise signal；Fourth processing unit 250 can include：4th noise reduction
Subelement（Figure is not shown）, for detecting target in default beam area in enabled first microphone and second microphone
After voice signal, the targeted voice signal is filtered, to eliminate ambient noise signal.
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
To instruct the hardware of correlation to complete by program, the program can be stored in a computer-readable recording medium, storage
Medium can include：ROM, RAM, disk or CD etc..
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art, this is not being departed from
In the spirit and scope of invention, it can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
The scope of restriction is defined.
Claims (14)
- A kind of 1. audio signal processing method, it is characterised in that including：Configure the pattern of portable speech ciphering equipment；When the portable speech ciphering equipment is in hands-free mode, enable the portable speech ciphering equipment body on the first microphone and Second microphone detects targeted voice signal in default beam area；When the portable speech ciphering equipment is not in hands-free mode, the first microphone detection targeted voice signal is enabled, is made The energy second microphone detection ambient noise signal, and the targeted voice signal is carried out using the ambient noise signal Noise reduction process；When portable speech ciphering equipment is not in hands-free mode, in addition to：When portable speech ciphering equipment is in headset mode, ear is enabled The 3rd microphone detection targeted voice signal on machine line, enables the first microphone or second microphone the detection ambient noise Signal, and noise reduction process is carried out to the targeted voice signal using the ambient noise signal.
- 2. the method as described in claim 1, it is characterised in that when portable speech ciphering equipment is not in hands-free mode, in addition to： When portable speech ciphering equipment is in headset mode, enables first microphone and second microphone and examined in default beam area Survey targeted voice signal.
- 3. the method as described in claim 1, it is characterised in that the pattern of the configuration portable speech ciphering equipment includes：When The portable speech ciphering equipment receives the hands-free instruction of user's input and the earphone jack of the portable speech ciphering equipment is not attached to During headset plug, the portable speech ciphering equipment is arranged to hands-free mode；When the earphone jack of the portable speech ciphering equipment connects During to headset plug, the portable speech ciphering equipment is arranged to headset mode.
- 4. the method as described in claim 1, it is characterised in that the pattern of the configuration portable speech ciphering equipment includes：When Detect the distance between the portable speech ciphering equipment and the head of user more than the first preset value and the portable speech ciphering equipment Earphone jack when being not attached to headset plug, the portable speech ciphering equipment is arranged to hands-free mode；When the portable voice When the earphone jack of equipment is connected to headset plug, the portable speech ciphering equipment is arranged to headset mode.
- 5. the method as described in claim 1, it is characterised in that the pattern of the configuration portable speech ciphering equipment includes：When Detect that signal amplitude difference that first microphone and second microphone detect is not above the second preset value and described When the earphone jack of portable speech ciphering equipment is not connected to headset plug, the portable speech ciphering equipment is arranged to hands-free mode； When the earphone jack of the portable speech ciphering equipment is connected to headset plug, the portable speech ciphering equipment is arranged to earphone mould Formula.
- 6. the method as described in claim 1, it is characterised in that described to utilize the ambient noise signal to the target voice Signal, which carries out noise reduction process, to be included：Speech activity is carried out using the difference of the ambient noise signal and the targeted voice signal Detection, noise estimation and speech enhan-cement processing.
- 7. method as claimed in claim 1 or 2, it is characterised in that exist in enabled first microphone and second microphone In default beam area after detection targeted voice signal, in addition to：The targeted voice signal is filtered, to eliminate background Noise signal.
- A kind of 8. speech signal processing device, it is characterised in that including：Dispensing unit, for configuring the pattern of portable speech ciphering equipment；First processing units, for when the portable speech ciphering equipment is in hands-free mode, enabling the portable speech ciphering equipment machine The first microphone and second microphone on body detect targeted voice signal in default beam area；Second processing unit, for being not in hands-free mode when the portable speech ciphering equipment, enable the first microphone detection Targeted voice signal, the second microphone detection ambient noise signal is enabled, and using the ambient noise signal to described Targeted voice signal carries out noise reduction process；3rd processing unit, for when portable speech ciphering equipment is not in hands-free mode but is in headset mode, enabling earphone cord On the 3rd microphone detection targeted voice signal, enable first microphone or second microphone detection ambient noise letter Number, and noise reduction process is carried out to the targeted voice signal using the ambient noise signal.
- 9. device as claimed in claim 8, it is characterised in that also include：Fourth processing unit, for when portable speech ciphering equipment When being not in hands-free mode but being in headset mode, first microphone and second microphone are enabled in default beam area Detect targeted voice signal.
- 10. device as claimed in claim 8, it is characterised in that the dispensing unit includes：First configuration subelement, is used for When the portable speech ciphering equipment receives the hands-free instruction of user's input and the earphone jack of the portable speech ciphering equipment does not connect When being connected to headset plug, the portable speech ciphering equipment is arranged to hands-free mode, and for when the ear of the portable speech ciphering equipment When machine transplanting of rice hole is connected to headset plug, the portable speech ciphering equipment is arranged to headset mode.
- 11. device as claimed in claim 8, it is characterised in that the dispensing unit includes：Second configuration subelement, is used for When the distance between head for detecting the portable speech ciphering equipment and user is more than the first preset value and the portable voice When the earphone jack of equipment is not connected to headset plug, the portable speech ciphering equipment is arranged to hands-free mode, and for working as When the earphone jack of the portable speech ciphering equipment is connected to headset plug, the portable speech ciphering equipment is arranged to headset mode.
- 12. device as claimed in claim 8, it is characterised in that the dispensing unit includes：3rd configuration subelement, is used for When the signal amplitude difference for detecting that first microphone and second microphone detect is not above the second preset value and When the earphone jack of the portable speech ciphering equipment is not connected to headset plug, the portable speech ciphering equipment is arranged to hands-free mould Formula, and for when the earphone jack of the portable speech ciphering equipment is connected to headset plug, the portable speech ciphering equipment to be set For headset mode.
- 13. device as claimed in claim 8, it is characterised in that the second processing unit includes：First noise reduction subelement, For carrying out voice activity detection, noise estimation and language using the difference of the ambient noise signal and the targeted voice signal Sound enhancing is handled；3rd processing unit includes：Second noise reduction subelement, for utilizing the ambient noise signal and the target The difference of voice signal carries out voice activity detection, noise estimation and speech enhan-cement processing.
- 14. device as claimed in claim 9, it is characterised in that the first processing units include：3rd noise reduction subelement, For being preset in enabled first microphone and second microphone in beam area after detection targeted voice signal, to described Targeted voice signal is filtered, to eliminate ambient noise signal；Fourth processing unit includes：4th noise reduction subelement, is used for After enabled first microphone and second microphone detect targeted voice signal in default beam area, to the target Voice signal is filtered, to eliminate ambient noise signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310349950.0A CN104376848B (en) | 2013-08-12 | 2013-08-12 | Audio signal processing method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310349950.0A CN104376848B (en) | 2013-08-12 | 2013-08-12 | Audio signal processing method and device |
Publications (2)
| Publication Number | Publication Date |
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| CN104376848A CN104376848A (en) | 2015-02-25 |
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| US9691413B2 (en) * | 2015-10-06 | 2017-06-27 | Microsoft Technology Licensing, Llc | Identifying sound from a source of interest based on multiple audio feeds |
| CN106454674A (en) * | 2016-09-12 | 2017-02-22 | 歌尔股份有限公司 | Testing tooling |
| CN106534510B (en) * | 2016-11-02 | 2020-11-13 | 惠州Tcl移动通信有限公司 | Microphone call control method based on mobile terminal and mobile terminal |
| CN106683684A (en) * | 2016-12-05 | 2017-05-17 | 上海木爷机器人技术有限公司 | Audio signal processing system and audio signal processing method |
| CN109417581A (en) * | 2017-03-14 | 2019-03-01 | 华为技术有限公司 | A kind of terminal call method and terminal |
| CN106960670B (en) * | 2017-03-27 | 2020-06-23 | 联想(北京)有限公司 | Recording method and electronic equipment |
| CN107124513A (en) * | 2017-05-04 | 2017-09-01 | 努比亚技术有限公司 | Breath screen method, mobile terminal and computer-readable recording medium under talking state |
| CN109671444B (en) * | 2017-10-16 | 2020-08-14 | 腾讯科技（深圳）有限公司 | Voice processing method and device |
| CN107910013B (en) * | 2017-11-10 | 2021-09-24 | Oppo广东移动通信有限公司 | Voice signal output processing method and device |
| CN108305637B (en) * | 2018-01-23 | 2021-04-06 | Oppo广东移动通信有限公司 | Earphone voice processing method, terminal equipment and storage medium |
| CN108886647B (en) * | 2018-04-04 | 2020-08-25 | 万魔声学科技有限公司 | Earphone noise reduction method and device, master earphone, slave earphone and earphone noise reduction system |
| CN108831500B (en) * | 2018-05-29 | 2023-04-28 | 平安科技（深圳）有限公司 | Speech enhancement method, device, computer equipment and storage medium |
| CN111402915A (en) * | 2020-03-23 | 2020-07-10 | 联想(北京)有限公司 | Signal processing method, device and system |
| CN111508516A (en) * | 2020-03-31 | 2020-08-07 | 上海交通大学 | Voice beam forming method based on channel correlation time frequency mask |
| CN113038338A (en) * | 2021-03-22 | 2021-06-25 | 联想(北京)有限公司 | Noise reduction processing method and device |
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