CN110265056A - The control method and loudspeaking unit of source of sound - Google Patents
The control method and loudspeaking unit of source of sound Download PDFInfo
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- CN110265056A CN110265056A CN201910501128.9A CN201910501128A CN110265056A CN 110265056 A CN110265056 A CN 110265056A CN 201910501128 A CN201910501128 A CN 201910501128A CN 110265056 A CN110265056 A CN 110265056A
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
- G10L21/0324—Details of processing therefor
- G10L21/034—Automatic adjustment
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
- G10L25/51—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for comparison or discrimination
- G10L25/60—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for comparison or discrimination for measuring the quality of voice signals
Abstract
The present invention relates to speaker technology fields, disclose the control method and loudspeaking equipment, the device with store function of a kind of source of sound.The control method includes: to acquire the first audio signal using bone conduction sensor and acquire the second audio signal using microphone；First audio signal and the second audio signal are merged, fusion audio signal is obtained；The signal-to-noise ratio of fusion audio signal is calculated, and judges whether the signal-to-noise ratio for merging audio signal is less than snr threshold；If the signal-to-noise ratio for merging audio signal is less than snr threshold, by the interaction of the first audio signal applied audio signal.By the above-mentioned means, the present invention can select reasonable audio signal applied audio signal interaction.
Description
Technical field
The present invention relates to speaker technology fields, control method and loudspeaking equipment, tool more particularly to a kind of source of sound
There is the device of store function.
Background technique
Currently, user usually can be by wearing the loudspeakers such as earphone, and the mobile terminals such as loudspeaker and smart phone
Connection, so that the medium that user is output and input using earphone as call voice, to carry out interactive voice with the other side of call.
And when user converse locating environmental noise is larger or noise is difficult to eliminate when, it will interfere the normal of call
It carries out, this just needs to carry out noise reduction to earphone call voice.Based on the mode for being applied to earphone call voice noise reduction at present, drop
It makes an uproar ineffective, causes the clarity of call voice insufficient.
Summary of the invention
In view of this, the invention mainly solves the technical problem of providing a kind of control methods of source of sound and loudspeaking to set
Device standby, with store function can select reasonable audio signal applied audio signal interaction.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of control method of source of sound is provided,
The control method includes: to acquire the first audio signal using bone conduction sensor and acquire the second audio using microphone to believe
Number；First audio signal and the second audio signal are merged, fusion audio signal is obtained；Calculate the letter of fusion audio signal
It makes an uproar and compares, and judge whether the signal-to-noise ratio for merging audio signal is less than snr threshold；If the signal-to-noise ratio of fusion audio signal is less than
Snr threshold, then by the interaction of the first audio signal applied audio signal.
In one embodiment of this invention, the signal-to-noise ratio of the first audio signal is greater than snr threshold and the second audio is believed
Number signal-to-noise ratio.
It in one embodiment of this invention, include: by the by the step of the first audio signal applied audio signal interaction
One audio signal carries out well-balanced adjustment or gain process, so that in the audio letter of default frequency range in big first audio signal that reduces
Number amplitude；By the first audio signal applied audio signal interaction by well-balanced adjustment or gain process.
In one embodiment of this invention, the first audio signal is acquired using bone conduction sensor and utilize Mike's elegance
It include: to export to be in the audio signal for presetting frequency range in the first audio signal to user before the step of collecting the second audio signal；
Obtain the minimum amplitude for the audio signal that user can discover in default frequency range in the first audio signal；By the first audio signal
Well-balanced adjustment or gain process are carried out, so that the amplitude of the audio signal in default frequency range in big first audio signal that reduces
Step includes: to increase the amplitude of the audio signal in default frequency range in the first audio signal to being not less than minimum amplitude.
In one embodiment of this invention, the first audio signal is identical with interaction content documented by the second audio signal；
The step of first audio signal and the second audio signal are merged, fusion audio signal is obtained includes: with the first audio letter
It is based on number, the audio signal in default frequency range in the second audio signal is corresponding as frequency range is preset in the first audio signal
Audio signal, with obtain fusion audio signal.
In one embodiment of this invention, default frequency range is defined as greater than or the tonal range equal to 1KHz.
In one embodiment of this invention, the step of whether signal-to-noise ratio for merging audio signal is less than snr threshold judged
Further include: if the signal-to-noise ratio of fusion audio signal is not less than snr threshold, will merge audio signal applied audio signal
Interaction.
In one embodiment of this invention, audio signal interaction includes that mobile data is conversed and interconnected in speech communication at least
It is a kind of.
In order to solve the above technical problems, another technical solution that the present invention uses is: providing a kind of loudspeaking equipment, this is raised
Acoustic equipment includes processor, bone conduction sensor and microphone, and bone conduction sensor and microphone are respectively coupled to processor, processing
Device is used for: control bone conduction sensor and microphone carry out audio signal interaction；The first audio is acquired using bone conduction sensor
Signal and utilization microphone acquire the second audio signal；First audio signal and the second audio signal are merged, obtained
Merge audio signal；The signal-to-noise ratio of fusion audio signal is calculated, and judges whether the signal-to-noise ratio for merging audio signal is less than noise
Compare threshold value；If the signal-to-noise ratio for merging audio signal is less than snr threshold, the first audio signal applied audio signal is handed over
Mutually.
In order to solve the above technical problems, another technical solution that the present invention uses is: providing a kind of with store function
Device, there is the device of store function to be stored with program data for this, and program data can be performed to realize such as above-mentioned implementation
The control method for the source of sound that example is illustrated.
The beneficial effects of the present invention are: being different from the prior art, the present invention provides a kind of control method of source of sound, the control
Method merge by the first audio signal that bone conduction sensor acquires and by the second audio signal that microphone acquires
To after fusion audio signal, calculates the signal-to-noise ratio of fusion audio signal and judge whether the signal-to-noise ratio for merging audio signal is less than letter
It makes an uproar than threshold value, so that the signal-to-noise ratio of i.e. fusion audio signal reaches when the signal-to-noise ratio for merging audio signal is less than snr threshold
Less than audio signal interaction requirement when, by bone conduction sensor acquisition the first audio signal (usual bone conduction sensor is adopted
The audio signal of collection signal-to-noise ratio with higher) applied audio signal interaction, therefore reasonable audio signal can be selected to answer
For audio signal interaction, to meet the requirement of the clarity of the audio signal to applied audio signal interaction.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.Wherein:
Fig. 1 is the flow diagram of the control method first embodiment of source of sound of the present invention；
Fig. 2 is the flow diagram of the control method second embodiment of source of sound of the present invention；
Fig. 3 is the flow diagram of the control method 3rd embodiment of source of sound of the present invention；
Fig. 4 is the structural schematic diagram of one embodiment of loudspeaking equipment of the present invention；
Fig. 5 is the structural schematic diagram for one embodiment of device that the present invention has store function.
Specific embodiment
To make the above purposes, features and advantages of the invention more obvious and understandable, with reference to the accompanying drawing, to the present invention
Specific embodiment be described in detail.It is understood that specific embodiment described herein is only used for explaining this hair
It is bright, rather than limitation of the invention.It also should be noted that illustrating only for ease of description, in attached drawing and the present invention
Relevant part rather than entire infrastructure.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creation
Property labour under the premise of all other embodiment obtained, shall fall within the protection scope of the present invention.
Term " first ", " second " in the present invention etc. be for distinguishing different objects, rather than it is specific suitable for describing
Sequence.In addition, term " includes " and " having " and their any deformations, it is intended that cover and non-exclusive include.Such as comprising
The process, method, system, product or equipment of a series of steps or units are not limited to listed step or unit, and
It is optionally further comprising the step of not listing or unit, or optionally further comprising for these process, methods, product or equipment
Intrinsic other step or units.
Referenced herein " embodiment " is it is meant that a particular feature, structure, or characteristic described can wrap in conjunction with the embodiments
Containing at least one embodiment of the present invention.Each position in the description occur the phrase might not each mean it is identical
Embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art explicitly and
Implicitly understand, embodiment described herein can be combined with other embodiments.And in the absence of conflict,
Feature in following embodiments and embodiment can be combined with each other.
Bone conduction sensor (Bone sensor) is a kind of mode for acquiring, capturing user voice.It, which is used to acquire, passes through
The sound that the user of the media such as skull, the osseous labyrinth of user transmitting issues.Bone conduction sensor can collect more pure
The sound that user issues.But its frequency of bone conduction sensor sound collected is not high, shows as high-frequency sound missing, causes
Sound quality is poor.
And microphone (Microphone) is another acquisition, the mode for capturing user voice.It, which is used to acquire, passes through sky
The sound that the user of the media such as gas transmitting issues.Microphone can collect the sound of most of frequency range of user's sending, especially
It is the part of high frequency, but can also collects the noise in environment simultaneously, and when the noise in environment is larger, it will lead to Mike
The noise of wind voice signal collected is smaller, it is meant that the clarity of microphone sound collected is insufficient.
In view of this, the embodiment of the present invention combination bone conduction sensor and microphone, propose a kind of controlling party of source of sound
Method can at least meet the requirement of the clarity of the audio signal to applied audio signal interaction.It is described in detail below:
Referring to Fig. 1, Fig. 1 is the flow diagram of the control method first embodiment of source of sound of the present invention.
S101: the first audio signal is acquired using bone conduction sensor and acquires the second audio signal using microphone；
In the present embodiment, although bone conduction sensor audio signal collected, there are the feelings of missing in high frequency section
Condition, but bone conduction sensor audio signal collected signal-to-noise ratio usually with higher, clarity are higher.Although and Mike
Wind can collect the part of the audio signal of most of frequency range, especially high frequency, but microphone equally acquires in environment
Noise, cause the noise of the microphone audio signal collected in the serious environment of partial noise smaller, cause to be used for
The clarity of the audio signal of audio signal interaction is insufficient.
Therefore, the present embodiment is by combining bone conduction sensor and microphone, so that bone conduction sensor and microphone are excellent
Gesture is complementary, to merge out the audio signal of signal-to-noise ratio height and acoustical sound, for audio signal interaction.Specifically, it is passed using bone
Derivative sensor acquires the first audio signal and acquires the second audio signal using microphone.
S102: the first audio signal and the second audio signal are merged, and obtain fusion audio signal；
In the present embodiment, the first audio signal is being acquired using bone conduction sensor and is utilizing microphone acquisition second
After audio signal, the first audio signal and the second audio signal are merged, to realize that bone conduction sensor and microphone are excellent
Gesture is complementary, and then obtains fusion audio signal.In general, fusion audio signal signal-to-noise ratio with higher and good sound quality.
However in the serious environment of partial noise, the frequency of noise, which is higher than bone conduction sensor, can collect audio signal most
When big frequency, will lead to fusion audio signal in there are partial noises, and noise reduction elimination can not be carried out by way of fusion, cause
Keep the noise reduction effect for merging audio signal not good enough, it is likely that cause the noise for merging audio signal smaller, clarity is not
It is sufficient for the requirement of audio signal interaction.
Wherein, the clarity of audio signal can be understood as interaction content entrained by audio signal can be by the people of user
The degree that ear understands reception and recognizes.Popular understanding is exactly that the clarity of audio signal is higher, then user listens clearer, makes
Reception can be understood and be recognized by another party by obtaining the audio signal that audio signal one side of interaction issues.
S103: calculating the signal-to-noise ratio of fusion audio signal, and judges whether the signal-to-noise ratio for merging audio signal is less than noise
Compare threshold value；
In the present embodiment, it is contemplated that the serious environment of partial noise will lead to fusion audio signal in there are partial noises
It can not be carried out by way of fusion the case where noise reduction elimination, it is therefore desirable to the signal-to-noise ratio of fusion audio signal is analyzed,
Can judgement fusion audio signal meet the needs of audio signal interaction.
Specifically, the signal-to-noise ratio of fusion audio signal is calculated, and judges whether the signal-to-noise ratio for merging audio signal is less than letter
It makes an uproar and compares threshold value.Wherein snr threshold is defined as can satisfy corresponding to clarity requirement of the audio signal interaction to audio signal
Minimum signal-to-noise ratio.When the signal-to-noise ratio for merging audio signal is less than snr threshold, then illustrate to merge the clear of audio signal
Degree is not able to satisfy the requirement of audio signal interaction, on the contrary then anti-.
S104: if the signal-to-noise ratio of fusion audio signal is less than snr threshold, the first audio signal is applied to audio
Signal interaction；
In the present embodiment, if the signal-to-noise ratio of fusion audio signal is less than snr threshold, illustrate to merge audio signal
Clarity be not able to satisfy the requirement of audio signal interaction, it is therefore desirable to select other reasonable audio signals to replace fusion audios
The interaction of signal applied audio signal.And the present embodiment is by selecting the higher audio signal of signal-to-noise ratio to be applied to audio to improve
The clarity of the audio signal of signal interaction.Specifically, by the interaction of the first audio signal applied audio signal.Due to osteoacusis
Sensor audio signal collected signal-to-noise ratio usually with higher, clarity is higher, therefore by bone conduction sensor institute
The first audio signal applied audio signal interaction of acquisition, can greatly improve the audio signal of applied audio signal interaction
Clarity, at least guarantee that interactive content can clearly be received by human ear, be recognized, guarantee interaction be normally carried out.
Above as can be seen that the control method of source of sound provided by the invention, letter of the control method in fusion audio signal
When making an uproar than being less than snr threshold, i.e. when the requirement of audio signal interaction is not achieved in the signal-to-noise ratio of fusion audio signal, bone is passed
The first audio signal applied audio signal interaction of derivative sensor acquisition, by selecting reasonable audio signal to be applied to audio
The mode of signal interaction, to meet the requirement of the clarity of the audio signal to applied audio signal interaction.
Referring to Fig. 2, Fig. 2 is the flow diagram of the control method second embodiment of source of sound of the present invention.
S201: audio signal interaction is carried out；
In the present embodiment, audio signal interaction is carried out, and the present embodiment is capable of providing the higher audio letter of signal-to-noise ratio
Number applied audio signal interaction, at least to guarantee that interaction content is clearly conveyed.Audio signal interaction can be mobile data
Call establishes call by modes such as carrier network dialing, call voice friendship is carried out between the initiator and recipient of call
Mutually, i.e. audio signal interaction.Certainly, audio signal interaction is also possible to interconnect speech communication etc., and it is logical to establish network by internet
Words, it is not limited here.
S202: the first audio signal is acquired using bone conduction sensor and acquires the second audio signal using microphone；
In the present embodiment, by combining bone conduction sensor and microphone, so that bone conduction sensor and microphone are excellent
Gesture is complementary, to merge out the audio signal of signal-to-noise ratio height and acoustical sound, for audio signal interaction.Specifically, it is passed using bone
Derivative sensor acquires the first audio signal and acquires the second audio signal using microphone.
S203: the first audio signal and the second audio signal are merged, and obtain fusion audio signal；
In the present embodiment, the first audio signal is being acquired using bone conduction sensor and is utilizing microphone acquisition second
After audio signal, the first audio signal and the second audio signal are merged, to realize that bone conduction sensor and microphone are excellent
Gesture is complementary, and then obtains fusion audio signal.
In general, fusion audio signal signal-to-noise ratio with higher and good sound quality.In view of the first audio signal and
Interaction content documented by second audio signal is identical, thus the first audio signal and the second audio signal merged it is specific
Process can be with are as follows: based on the first audio signal, using the audio signal in default frequency range in the second audio signal as the
The corresponding audio signal of frequency range is preset in one audio signal, to obtain fusion audio signal.That is, with the second audio signal
In the audio signal in default frequency range replace and preset the corresponding audio signal of frequency range in the first audio signal, with the second audio
Audio signal in default frequency range in signal compensates for the missing that the corresponding audio signal of frequency range is preset in the first audio signal,
Integrality without will affect interaction content documented by the first audio signal and the second audio signal, i.e. fusion audio signal are still
Right entire teachings have interaction content.
Based on described above, in the serious environment of partial noise, especially the frequency of noise is higher than bone conduction sensor
When can collect the maximum frequency of audio signal, replaced with the audio signal in default frequency range in the second audio signal
The corresponding audio signal of frequency range is preset in first audio signal, frequency will be higher than bone conduction sensor can collect sound
The noise of the maximum frequency of frequency signal is fused in fusion audio signal, causes the partial noise merged in audio signal can not
It eliminates, the noise reduction effect for merging audio signal is not good enough, it is likely that cause the noise for merging audio signal smaller, clarity
It is insufficient for the requirement of audio signal interaction.
It should be noted that default frequency range is defined as greater than or the tonal range equal to 1KHz.Frequency below for 1KHz
Section, bone conduction sensor can collect pure audio signal, i.e. the first audio signal, noise is relatively high.That is,
The audio signal parts integrity degree of 1KHz frequency range below is higher in bone conduction sensor the first audio signal collected, and
There is the case where missing in the audio signal parts of the frequency range of 1KHz or more.Unlike, microphone can completely acquire big portion
The audio signal of frequency-division section or even full frequency band, i.e. the second audio signal.But ambient noise can be introduced the second audio by microphone
In signal, cause the noise of the second audio signal smaller.
S204: calculating the signal-to-noise ratio of fusion audio signal, and judges whether the signal-to-noise ratio for merging audio signal is less than noise
Compare threshold value；
In the present embodiment, if the signal-to-noise ratio of fusion audio signal is less than snr threshold, S205 is thened follow the steps；If melting
The signal-to-noise ratio for closing audio signal is not less than snr threshold, thens follow the steps S206.
In view of the serious environment of partial noise will lead in fusion audio signal, there are partial noises can not pass through fusion
Mode the case where carrying out noise reduction elimination, it is therefore desirable to the signal-to-noise ratio of fusion audio signal is analyzed, judges to merge audio
Can signal meet the needs of audio signal interaction.
Specifically, the signal-to-noise ratio of fusion audio signal is calculated, and judges whether the signal-to-noise ratio for merging audio signal is less than letter
It makes an uproar and compares threshold value.When the signal-to-noise ratio for merging audio signal is less than snr threshold, then illustrate the clarity of fusion audio signal not
It is able to satisfy the requirement of audio signal interaction；And when the signal-to-noise ratio for merging audio signal is not less than snr threshold, then explanation is melted
The clarity for closing audio signal can satisfy the requirement of audio signal interaction.
S205: by the interaction of the first audio signal applied audio signal；
In the present embodiment, if the signal-to-noise ratio of fusion audio signal is less than snr threshold, illustrate to merge audio signal
Clarity be not able to satisfy the requirement of audio signal interaction, it is therefore desirable to select other reasonable audio signals to replace fusion audios
The interaction of signal applied audio signal.And the present embodiment is by selecting the higher audio signal of signal-to-noise ratio to be applied to audio to improve
The clarity of the audio signal of signal interaction.Specifically, by the interaction of the first audio signal applied audio signal, terminate to flow later
Journey.
Due to bone conduction sensor audio signal collected signal-to-noise ratio usually with higher, the letter of the first audio signal
It makes an uproar than the signal-to-noise ratio for being typically larger than snr threshold and the second audio signal, clarity is higher.Therefore, above the first sound
The fusion process of frequency signal and the second audio signal is also based on higher first audio signal of signal-to-noise ratio, and in the first sound
The high frequency section of frequency signal deletion replaces with the second audio signal.And by bone conduction sensor the first audio signal collected
Applied audio signal interaction can greatly improve the clarity of the audio signal of applied audio signal interaction, at least guarantee
Interactive content can clearly be received by human ear, be recognized, and guarantee being normally carried out for interaction.
S206: by fusion audio signal applied audio signal interaction；
In the present embodiment, if the signal-to-noise ratio of fusion audio signal is not less than snr threshold, illustrate to merge audio letter
Number clarity can satisfy audio signal interaction requirement, therefore will fusion audio signal applied audio signal interaction.Phase
For the first audio signal, fusion audio signal is combined with the higher middle low frequency part of signal-to-noise ratio in the first audio signal
High frequency section (i.e. default frequency range) in (i.e. default frequency range frequency range below) and the second audio signal, so that fusion audio letter
Number have be sufficiently used for audio signal interaction signal-to-noise ratio while, keep high frequency section audio it is complete so that fusion audio
Signal has good sound quality.
Referring to Fig. 3, Fig. 3 is the flow diagram of the control method 3rd embodiment of source of sound of the present invention.The present embodiment with
Above-described embodiment the difference is that, bone conduction sensor the first audio signal collected is subjected to adaptive processes, purport
In the audio for drawing high the high frequency section in the first audio signal, to improve the sound quality of the first audio signal.It is explained in detail below
It states:
S301: audio signal interaction is carried out；
In the present embodiment, audio signal interaction is carried out, and the present embodiment is capable of providing the higher audio letter of signal-to-noise ratio
Number applied audio signal interaction, at least to guarantee that interaction content is clearly conveyed.
S302: the first audio signal is acquired using bone conduction sensor and acquires the second audio signal using microphone；
In the present embodiment, by combining bone conduction sensor and microphone, so that bone conduction sensor and microphone are excellent
Gesture is complementary, to merge out the audio signal of signal-to-noise ratio height and acoustical sound, for audio signal interaction.Specifically, it is passed using bone
Derivative sensor acquires the first audio signal and acquires the second audio signal using microphone.
S303: the first audio signal and the second audio signal are merged, and obtain fusion audio signal；
In the present embodiment, the first audio signal is being acquired using bone conduction sensor and is utilizing microphone acquisition second
After audio signal, the first audio signal and the second audio signal are merged, to realize that bone conduction sensor and microphone are excellent
Gesture is complementary, and then obtains fusion audio signal.
S304: calculating the signal-to-noise ratio of fusion audio signal, and judges whether the signal-to-noise ratio for merging audio signal is less than noise
Compare threshold value；
In the present embodiment, if the signal-to-noise ratio of fusion audio signal is less than snr threshold, S305 is thened follow the steps；If melting
The signal-to-noise ratio for closing audio signal is not less than snr threshold, thens follow the steps S307.
In view of the serious environment of partial noise will lead in fusion audio signal, there are partial noises can not pass through fusion
Mode the case where carrying out noise reduction elimination, it is therefore desirable to the signal-to-noise ratio of fusion audio signal is analyzed, judges to merge audio
Can signal meet the needs of audio signal interaction.
Specifically, the signal-to-noise ratio of fusion audio signal is calculated, and judges whether the signal-to-noise ratio for merging audio signal is less than letter
It makes an uproar and compares threshold value.When the signal-to-noise ratio for merging audio signal is less than snr threshold, then illustrate the clarity of fusion audio signal not
It is able to satisfy the requirement of audio signal interaction；And when the signal-to-noise ratio for merging audio signal is not less than snr threshold, then explanation is melted
The clarity for closing audio signal can satisfy the requirement of audio signal interaction.
S305: the first audio signal is subjected to well-balanced adjustment or gain process；
In the present embodiment, if the signal-to-noise ratio of fusion audio signal is less than snr threshold, illustrate to merge audio signal
Clarity be not able to satisfy the requirement of audio signal interaction, it is therefore desirable to select other reasonable audio signals to replace fusion audios
The interaction of signal applied audio signal.And the present embodiment is by selecting the higher audio signal of signal-to-noise ratio to be applied to audio to improve
The clarity of the audio signal of signal interaction.Specifically, by the interaction of the first audio signal applied audio signal.Due to osteoacusis
Sensor audio signal collected signal-to-noise ratio usually with higher, therefore by bone conduction sensor the first audio collected
The interaction of signal applied audio signal can greatly improve the clarity of the audio signal of applied audio signal interaction, at least
Guarantee that the content of interaction can clearly be received by human ear, be recognized, guarantees being normally carried out for interaction.
Further, since the audio in default frequency range in the first audio signal has the case where missing, lead to first
The sound quality of audio signal is poor.In view of this, the first audio signal is carried out well-balanced adjustment or gain process by the present embodiment, so that
The amplitude of audio signal in default frequency range in big first audio signal that reduces, so that in default frequency in the first audio signal
The recipient that the audio signal of section can be interacted by audio signal perceives, and ensureing improves the first sound while interaction is normally carried out
The problem of frequency signal lower tone due to caused by the audio missing of high frequency section.
Well-balanced adjustment adjusts the first audio signal by balanced device (EQ).Well-balanced adjustment can be believed for the first audio
Audio signal in default frequency range in number is adjusted, to increase the audio signal in default frequency range in the first audio signal
Amplitude.And for the frequency range in addition to default frequency range, it is relatively high and clear enough that the first audio signal shows as noise, can be with
Without adjusting, to reduce the workload for adjusting audio signal, facility load is reduced.Certainly, in the other embodiment of the present invention
In, it also can use well-balanced adjustment and the audio signal of the full frequency band of the first audio signal be adjusted, handed over being further ensured that
The clear transmitting of mutual content, guarantees the quality of audio signal interaction, it is not limited here.
Gain process believes the audio of the full frequency band of the first audio signal that is, by gain circuitries such as signal amplification circuits
Number increased gain is carried out, so that the amplitude of the audio signal to reduce in default frequency range in big first audio signal, and for removing
The audio signal of frequency range other than default frequency range is equally also enlarged gain, to be further ensured that the clear transmitting of interaction content,
Guarantee the quality of audio signal interaction.
Further, for well-balanced adjustment and gain process to the audio signal in default frequency range in the first audio signal
Amplitude adjustment amplitude, can audio signal interaction before be determined, to guarantee the first audio signal energy adjusted
Enough there is good sound quality.
Specifically, the audio signal in default frequency range in the first audio signal is exported to user, obtains user's energy later
Enough discover the minimum amplitude of the audio signal in default frequency range in the first audio signal.Wherein, amplitude is defined as audio signal
The amplitude of corresponding harmonic wave.
For example, by taking the control method for the source of sound that the present embodiment is illustrated is applied to mobile terminal and loudspeaking equipment as an example
It is illustrated.Mobile terminal can be smart phone etc., and loudspeaking equipment can be earphone etc..Earphone connects mobile terminal, carries out
The input and output of call voice.And the determination for above-mentioned adjustment amplitude, the application program that can be on mobile terminal (can be with
It is balanced device) and earphone mutual cooperation realization.For example, earphone exports the audio signal in default frequency range in the first audio signal
To user, the volume value of the audio signal of the default frequency range is adjusted in the application program of user on mobile terminals, is determined later
User can discover the minimal volume value of the audio signal in default frequency range in the first audio signal, and the minimal volume value pair
The minimum amplitude of the audio signal of frequency range should be preset, it is possible thereby to determine that user can discover in the first audio signal in pre-
If the minimum amplitude of the audio signal of frequency range.
And the first audio signal is subjected to well-balanced adjustment or gain process among the above, so that in big first audio signal that reduces
The amplitude of audio signal in default frequency range is specifically as follows the audio increased in default frequency range in the first audio signal
The amplitude of signal can guarantee that audio signal in default frequency range in the first audio signal can be by minimum amplitude is not less than
User is discovered, and then the sound quality for improving the first audio signal.
S306: by the first audio signal applied audio signal interaction by well-balanced adjustment or gain process；
In the present embodiment, after the first audio signal being carried out well-balanced adjustment or gain process, the sound of the first audio signal
Matter is improved, when so that will be interacted by well-balanced adjustment or the first audio signal applied audio signal of gain process, the
One audio signal signal-to-noise ratio with higher guarantees that the first audio signal can be recognized clearly, while also having good
Sound quality.Terminate process later.
S307: by fusion audio signal applied audio signal interaction；
In the present embodiment, if the signal-to-noise ratio of fusion audio signal is not less than snr threshold, illustrate to merge audio letter
Number clarity can satisfy audio signal interaction requirement, therefore will fusion audio signal applied audio signal interaction.Phase
For the first audio signal, fusion audio signal be combined with the higher middle low frequency part of signal-to-noise ratio in the first audio signal with
And the second high frequency section in audio signal, so that fusion audio signal has the signal-to-noise ratio for being sufficiently used for audio signal interaction
Meanwhile the complete of high frequency section audio is kept, so that fusion audio signal has good sound quality.
In conclusion the control method of source of sound provided by the invention, signal-to-noise ratio of the control method in fusion audio signal
When less than snr threshold, i.e. when the requirement of audio signal interaction is not achieved in the signal-to-noise ratio of fusion audio signal, osteoacusis is passed
The first audio signal applied audio signal interaction of sensor acquisition, by selecting reasonable audio signal applied audio signal
Interactive mode, to meet the requirement of the clarity of the audio signal to applied audio signal interaction.
Referring to Fig. 4, Fig. 4 is the structural schematic diagram of one embodiment of loudspeaking equipment of the present invention.
In one embodiment, loudspeaking equipment 1 includes processor 11, bone conduction sensor 12 and microphone 13, and osteoacusis passes
Sensor 12 and microphone 13 are respectively coupled to processor 11.Loudspeaking equipment 1 can be earphone etc., such as headphone, In-Ear
Earphone etc., it is not limited here.
Processor 11 carries out audio signal interaction for controlling bone conduction sensor 12 and microphone 13；It is passed using osteoacusis
Sensor 12 acquires the first audio signal and acquires the second audio signal using microphone 13；By the first audio signal and the second sound
Frequency signal is merged, and fusion audio signal is obtained；The signal-to-noise ratio of fusion audio signal is calculated, and judges to merge audio signal
Whether signal-to-noise ratio is less than snr threshold；If the signal-to-noise ratio for merging audio signal is less than snr threshold, the first audio is believed
The interaction of number applied audio signal.
Wherein, processor 11 can be realized the control method of the source of sound illustrated in above-described embodiment, just no longer superfluous herein
It states.
Referring to Fig. 5, Fig. 5 is the structural schematic diagram for one embodiment of device that the present invention has store function.
In one embodiment, the device 2 with store function is stored with program data 21, and program data 21 can be performed
To realize the control method of the source of sound illustrated such as above-described embodiment, details are not described herein again.
In several embodiments provided by the present invention, it should be understood that disclosed system, device and method can
To realize by another way.For example, device embodiments described above be it is schematical, for example, the module or
The division of unit is a kind of logical function partition, and there may be another division manner in actual implementation, such as multiple units or group
Part can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown
Or the mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, device or unit it is indirect
Coupling or communication connection can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of present embodiment
's.
In addition, each functional unit in each embodiment of the present invention can integrate in one processing unit, it can also
To be that each unit physically exists alone, 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 software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
Embody, which is stored in the device with store function, including some instructions use so that
One computer equipment (can be personal computer, server or the network equipment etc.) or processor (processor) execute
The all or part of the steps of each embodiment the method for the present invention.And the device above-mentioned with store function includes: U
Disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access
Memory), the various media that can store program code such as magnetic or disk, server.
Mode the above is only the implementation of the present invention is not intended to limit the scope of the invention, all to utilize this
Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it is relevant to be applied directly or indirectly in other
Technical field is included within the scope of the present invention.
Claims (10)
1. a kind of control method of source of sound, which is characterized in that the control method includes:
The first audio signal is acquired using bone conduction sensor and acquires the second audio signal using microphone；
First audio signal and second audio signal are merged, fusion audio signal is obtained；
The signal-to-noise ratio of the fusion audio signal is calculated, and judges whether the signal-to-noise ratio of the fusion audio signal is less than signal-to-noise ratio
Threshold value；
If the signal-to-noise ratio of the fusion audio signal is less than the snr threshold, first audio signal is applied to sound
Frequency signal interaction.
2. control method according to claim 1, which is characterized in that the signal-to-noise ratio of first audio signal is greater than described
The signal-to-noise ratio of snr threshold and second audio signal.
3. control method according to claim 1, which is characterized in that described that first audio signal is applied to audio
The step of signal interaction includes:
First audio signal is subjected to well-balanced adjustment or gain process, so that be in big first audio signal that reduces
The amplitude of the audio signal of default frequency range；
It will be interactive applied to the audio signal by the first audio signal of the well-balanced adjustment or the gain process.
4. control method according to claim 3, which is characterized in that described to acquire the first audio using bone conduction sensor
Signal and using microphone acquire the second audio signal the step of before include:
The audio signal in first audio signal in the default frequency range is exported to user；
Obtain the minimum amplitude for the audio signal that user can discover in first audio signal in the default frequency range；
It is described that first audio signal is subjected to well-balanced adjustment or gain process, so that in big first audio signal that reduces
The step of amplitude of audio signal in default frequency range includes:
The amplitude for increasing the audio signal in first audio signal in the default frequency range is described most small size to being not less than
Value.
5. control method according to claim 1, which is characterized in that first audio signal and second audio letter
Interaction content documented by number is identical；
It is described to merge first audio signal and second audio signal, obtain the step of merging audio signal packet
It includes:
Based on first audio signal, using the audio signal in default frequency range in second audio signal as institute
It states and presets the corresponding audio signal of frequency range described in the first audio signal, to obtain the fusion audio signal.
6. according to the described in any item control methods of claim 3 to 5, which is characterized in that the default frequency range is defined as greater than
Or the tonal range equal to 1KHz.
7. control method according to claim 1, which is characterized in that the signal-to-noise ratio of the judgement fusion audio signal
The step of whether being less than snr threshold further include:
If the signal-to-noise ratio of the fusion audio signal is not less than the snr threshold, the fusion audio signal is applied to
The audio signal interaction.
8. control method according to claim 1, which is characterized in that the audio signal interaction includes that mobile data is conversed
With interconnection at least one of speech communication.
9. a kind of loudspeaking equipment, which is characterized in that the loudspeaking equipment includes processor, bone conduction sensor and microphone, institute
It states bone conduction sensor and the microphone is respectively coupled to the processor, the processor is used for:
It controls the bone conduction sensor and the microphone carries out audio signal interaction；
The first audio signal is acquired using the bone conduction sensor and acquires the second audio signal using the microphone；
First audio signal and second audio signal are merged, fusion audio signal is obtained；
The signal-to-noise ratio of the fusion audio signal is calculated, and judges whether the signal-to-noise ratio of the fusion audio signal is less than signal-to-noise ratio
Threshold value；
If the signal-to-noise ratio of the fusion audio signal is less than the snr threshold, first audio signal is applied to sound
Frequency signal interaction.
10. a kind of device with store function, which is characterized in that the device with store function is stored with program number
According to described program data can be performed the control method to realize source of sound as claimed in any one of claims 1 to 8.
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