CN109729472A - Neck wears exchange method, system and the device of formula interactive voice earphone - Google Patents
Neck wears exchange method, system and the device of formula interactive voice earphone Download PDFInfo
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Abstract
The present invention provides exchange method (MEOS), system and the device that a kind of neck wears formula interactive voice earphone, wherein method includes: to acquire audio signal by audio collection module, it is further comprising the steps of, the audio signal is received, and voice signal is converted to analog electrical signal；The analog electrical signal is converted to the storable digital signal of multichannel；The digital signal is handled, and exports effective audio data；Effective audio data is pushed to terminal device.The present invention is effectively removed noise and noise, the effective clearly audio data of output makes user obtain best hearing enjoying by carrying out mixed processing to multi-path audio-frequency data.
Description
Technical field
The present invention relates to intelligent wearable device technical field, especially a kind of neck wears the interaction side of formula interactive voice earphone
Method, system and device.
Background technique
With the development and continuous improvement of people's living standards of intelligent wearable device, various intelligent wearable devices such as intelligence
Wrist-watch using more more and more universal, intelligent wearable device has become indispensable means of communication in people's life.
Why people can hear sound, be that vibration is transmitted to ear-drum by external ear ear canal because of the vibration in air,
Pass through the auditory nerve for the vibratory drive people that ear-drum is formed.And when the middle external ear of people damages or clogs ear canal with hand, sound
Acoustical vibration can also be transmitted by the skin and bone of people, to drive the auditory nerve of people.
Osteoacusis is a kind of sound conduction mode, passes through the skull of people, temporal bone, osseous labyrinth, the transmitting of inner ear lymph, ear
Snail, auditory nerve, auditory center transmit sound wave, and here it is bone conduction technologies.Osteoacusis is to vibrate skull or temporal bone, obstructed
It crosses external ear and middle ear is transmitted directly in inner ear.Relative to traditional air transmitted side for generating sound wave by Loudspeaker diaphragm
The step of formula, osteoacusis eliminates the transmitting of many sound waves, clearly sound-reducing, and sound wave can be realized in noisy caliber
Her people will not be influenced because of spreading in air.
However, bone conduction technology also has several disadvantages in that the appropriate of (1) bond-conduction sound and contacts the position of bone
Correlation, it is also related with the feature of tissue.Such as: the difference such as age of user, gender, fat or thin can all cause different user to exist
When using same bone conduction earphone, there is different experience, often this different experience is all penalty.(2) it is passed using bone
Waveguide technology is called or send words, and bone conduction device must be close to bone, and Shen Bo directly passes through bone and reaches auditory nerve, wearing side
Formula determines that bone conduction device must oppress bone conduction device height and passes on bone that some absent-mindedness just will affect sound
Keep pouring in the quality passed, however the wearing mode of this height compressing bone makes user's comfort in use, skin
Health is influenced to different extents.(3) bone and tissue generate refreshing Eastcom number the amplitude with frequency selectivity
The audio signal in decaying and delay, high-fidelity or broadband is difficult through bone conduction to auditory nerve, so being based on existing skill
User's majority of art can complain that bone conduction earphone " sound quality " and " timbre " are poor.(4) the problem of osteoacusis leakage sound.Because solid-state is conducted
The characteristic of vibration, most existing bone conduction technologies all can not really solve the problems, such as that osteoacusis leaks sound, this is because the prior art
The skeleton of frequency dependence and the reality of tissue attenuation vibration signal are compensated by big volume, big vibration signal,
That is that this method is equivalent to and drinks poison to quench thirst, and user can complain that leakage sound is serious, or since it is desired that bigger power, osteoacusis are loyal
Sub-volume weight greatly increases, and causes equipment whole excessively heavy.(5) bone conduction earphone is the system of open ears, works as user
It stays in a noisy environment, can't hear the sound transmitted in earphone at all since the opening of bone conduction earphone will lead to user
Sound.
Application No. is the patent applications of 102084668A to disclose the method and system of processing signal, the system comprises:
(a) processor is set as handling and carves the first input signal detected when detecting by the first microphone, existed by second microphone
The second input signal that detection moment detects, and carve the third input letter detected when detecting by bone-conduction microphone
Number, to generate in response to the signal after the correction of the first, second, and third input signal；And (b) communication interface, it is set as
The signal after correction is provided to external system.This method carries out noise reduction process to sound by convolution function, has obtained compared with subject to
True voice signal.But due to being that a few road sound mix, some sound are easy to be mistaken for correct sound and be recorded in sound
In rail, therefore the sound exported is not entirely accurate and clearly.
Application No. is the patent applications of 105721973A to disclose a kind of bone conduction earphone and its audio-frequency processing method, wherein
A kind of bone conduction earphone and its audio playing apparatus based on the bone conduction earphone, the bone conduction earphone include skeleton
With tissue model modeling module and mathematics presetter, Delay computation unit, digital analog converter, analog-digital converter, first
Low-pass filter, the second low-pass filter, audio-frequency amplifier, audio drive amplifiers, at least one bone-conduction microphone, at least
One bone conduction vibrator；The skeleton of real-time monitoring different user and the attenuation effect information of tissue are imitated based on the decaying
Answer information, generate a compensation transmission function, by the compensation transmission function to input audio signal to input audio signal into
It is conducted in bone and tissue after row digital pre-calibration.The application is to be carried out in advance by the method for compensation to the audio of input
Correction, but this method is mainly used for solving the attenuation problem of audio signal, and correct sound can not be told from noise
Frequency evidence.
Summary of the invention
In order to solve the above technical problems, the invention proposes combined by acoustic microphones and bone-conduction microphone
Mode, single frames judgement is carried out to two-way audio input respectively, determines that the higher frame of speech probability is speech frame, and will be final
Speech frame is combined into the audio data of output.
The first aspect of the present invention provides the exchange method (MEOS) that neck wears formula interactive voice earphone, passes through audio collection
Module acquires audio signal, comprising the following steps:
Step 1: receiving the audio signal, and voice signal is converted to analog electrical signal；
Step 2: the analog electrical signal is converted to the storable digital signal of multichannel；
Step 3: handling the digital signal, and export effective audio data；
Step 4: effective audio data is pushed to terminal device.
Preferably, the audio collection module includes at least one bone-conduction microphone and at least one microphone.
In any of the above-described scheme preferably, the audio signal includes the first audio signal and the second audio signal.
In any of the above-described scheme preferably, first audio signal refers to is acquired using the bone-conduction microphone
The mechanical wave generated due to the vibration of user's body.
In any of the above-described scheme preferably, second audio signal, which refers to, acquires the machine using the microphone
The sound wave in time range that tool wave generates.
In any of the above-described scheme preferably, the step 3 further includes following sub-step:
Step 31: acoustic characteristic detection is carried out to the collected audio signal；
Step 32: carrying out the judgement of keynote source；
Step 33: carrying out the compensation of keynote source；
Step 34: eliminating noise.
In any of the above-described scheme preferably, the acoustic characteristic detection includes speech detection, noise measuring and correlation
At least one of property feature extraction.
In any of the above-described scheme preferably, it is Tms that the method for the acoustic characteristic detection, which includes every time extraction frame length,
Audio data xi(n), and average energy E is calculatedi, zero-crossing rate ZCRi, short-term correlation RiCross correlation C in short-termij(k),
Wherein,
In any of the above-described scheme preferably, the method for the acoustic characteristic detection further includes according to the average energy
Ei, the zero-crossing rate ZCRi, the short-term correlation RiWith the cross correlation C in short-termij(k) the non-mute general of present frame is calculated
RateAnd speech probability
Wherein,For the channel i max (Ei*ZCRi) experience value,For the channel i max { max [Ri(k)]*
max[Cij(k)] experience value }.
In any of the above-described scheme preferably, the method for the acoustic characteristic detection further includes being worked as according to the channel i
The non-mute probability of previous frameWith the speech probabilityJudge the type of present frame, i.e., whether is noise frame, voice
Frame, without making an uproar ambient sound frame,
Wherein,It is in the empirical value of correlation judgement, Ambient is without ambient sound frame of making an uproar, and Noise is noise
Frame, Speech are speech frame.
In any of the above-described scheme preferably, the step 32 is to determine that master data is logical according to keynote source decision principle
Road.
In any of the above-described scheme preferably, keynote source decision principle includes:
1) when certain is Speech all the way, and another way is Ambient Noise, determine the road as current location
The main data path of frame；
2) when certain is Ambient all the way, and another way is Noise, the master of the road as current location frame is determined
Data path；
3) it when two-way is one species frame, determinesThe main number of the maximum channel of numerical value as current location frame
According to access.
In any of the above-described scheme preferably, the step 33 is to extract the valid data of other channel audio data,
Speech components compensation is carried out to the main data path.
In any of the above-described scheme preferably, before the step 34 is according to the main data path Speech audio frame
Associated Noise audio frame obtains noise spectrum characteristics afterwards, and to Speech audio frame on frequency domain to noise spectrum ingredient into
Row inhibits.
Second part of the invention discloses the exchange method that a kind of neck wears formula interactive voice earphone, including for acquiring sound
The audio collection module of frequency signal further includes with lower module:
Receiving module: analog electrical signal is converted into for receiving the audio signal, and voice signal；
Conversion module: for the analog electrical signal to be converted into the storable digital signal of multichannel；
Processing module: for handling the digital signal, and effective audio data is exported；
Output module: for effective audio data to be pushed to terminal device
Preferably, the audio collection module includes at least one bone-conduction microphone and at least one microphone.
In any of the above-described scheme preferably, the audio signal includes the first audio signal and the second audio signal.
In any of the above-described scheme preferably, first audio signal refers to acquires using including bone-conduction microphone
The mechanical wave generated due to the vibration of user's body.
In any of the above-described scheme preferably, second audio signal, which refers to, acquires the machine using including microphone
The sound wave in time range that tool wave generates.
In any of the above-described scheme preferably, the processing module further includes following submodule: acoustic characteristic detection
Module: for carrying out acoustic characteristic detection to the collected audio signal；
Keynote source decision sub-module: for carrying out the judgement of keynote source；
Keynote source compensates submodule: for carrying out the compensation of keynote source；
Noise reduction submodule: for eliminating noise.
In any of the above-described scheme preferably, the acoustic characteristic detection includes speech detection, noise measuring and correlation
At least one of property feature extraction.
In any of the above-described scheme preferably, it is Tms that the method for the acoustic characteristic detection, which includes every time extraction frame length,
Audio data xi(n), and average energy E is calculatedi, zero-crossing rate ZCRi, short-term correlation RiCross correlation C in short-termij(k),
Wherein,
In any of the above-described scheme preferably, the method for the acoustic characteristic detection further includes according to the average energy
Ei, the zero-crossing rate ZCRi, the short-term correlation RiWith the cross correlation C in short-termij(k) the non-mute general of present frame is calculated
RateAnd speech probability
Wherein,For the channel i max (Ei*ZCRi) experience value,For the channel i max { max [Ri(k)]*
max[Cij(k)] experience value }.
In any of the above-described scheme preferably, the method for the acoustic characteristic detection further includes being worked as according to the channel i
The non-mute probability of previous frameWith the speech probabilityJudge the type of present frame, i.e., whether is noise frame, voice
Frame, without making an uproar ambient sound frame,
Wherein,It is in the empirical value of correlation judgement, Ambient is without ambient sound frame of making an uproar, and Noise is noise
Frame, Speech are speech frame.
In any of the above-described scheme preferably, keynote source decision sub-module is used for true according to keynote source decision principle
Determine main data path.
In any of the above-described scheme preferably, keynote source decision principle includes:
1) when certain is Speech all the way, and another way is Ambient Noise, determine the road as current location
The main data path of frame；
2) when certain is Ambient all the way, and another way is Noise, the master of the road as current location frame is determined
Data path；
3) it when two-way is one species frame, determinesThe main number of the maximum channel of numerical value as current location frame
According to access.
In any of the above-described scheme preferably, the keynote source compensation submodule is for extracting other channel audio data
Valid data, to the main data path carry out speech components compensation.
In any of the above-described scheme preferably, the noise reduction submodule is used for according to the main data path Speech sound
The Noise audio frame of frequency frame forward-backward correlation obtains noise spectrum characteristics, and to Speech audio frame on frequency domain to noise spectrum
Ingredient is inhibited.
The third aspect of the present invention discloses the interactive device that a kind of neck wears formula interactive voice earphone, including shell, also wraps
Include system described in any of the above embodiments.
Preferably, the interactive device that the neck wears formula interactive voice earphone is mounted on intelligent devices.
In any of the above-described scheme preferably, the smart machine includes: smart phone, smart camera, intelligent earphone
It include at least one of the smart machine of voice input with other.
The present invention can effectively remove noise and noise by the processing to two-way audio, obtain effectively clearly
Audio data.
Detailed description of the invention
Fig. 1 is the flow chart of a preferred embodiment of the exchange method that neck according to the invention wears formula interactive voice earphone.
Fig. 2 is the module signal of a preferred embodiment of the exchange method that neck according to the invention wears formula interactive voice earphone
Figure.
Fig. 3 is an embodiment of the bone-conduction microphone for the interactive device that neck according to the invention wears formula interactive voice earphone
Schematic cross-section.
Fig. 4 is the knot of an embodiment of the intelligent earphone for the interactive device that neck according to the invention wears formula interactive voice earphone
Structure schematic diagram.
Fig. 5 is the stream of an embodiment of the noise-reduction method for the exchange method that neck according to the invention wears formula interactive voice earphone
Cheng Tu.
Specific embodiment
The present invention is further elaborated with specific embodiment with reference to the accompanying drawing.
Embodiment one
Audio collection module 200 includes at least one microphone and a bone-conduction microphone, further includes other kinds of
Audio collecting device, in the present embodiment, audio collection module 200 include a common microphone and an osteoacusis Mike
Wind.
As shown in Figure 1 and Figure 2, execution step 100, audio collection module 200 (including a microphone and an osteoacusis
Microphone) acquisition audio signal (be collected into including the first audio signal being collected into from microphone and from bone-conduction microphone
Second audio signal).Step 110 is executed, receiving module 200 receives the first audio signal and the second audio from acquisition module 200
Signal, and two-way audio signal is converted to analog electrical signal.Step 120 is executed, conversion module 220 is the first analog electrical signal
Digital signal can be stored by being converted to the second analog electrical signal.Step 130 is executed, acoustic characteristic detection sub-module 231 is right respectively
First digital signal and the second digital signal carry out acoustic characteristic detection (including speech detection, noise measuring and correlative character
It extracts).The step of acoustic characteristic detects is as follows: 1) extracting the audio data that frame length is 20ms, xi(n), and average energy is calculated
Ei, zero-crossing rate ZCRi, short-term correlation RiCross correlation C in short-termij(k),
Wherein,According to the average energy Ei, the zero-crossing rate
ZCRi, the short-term correlation RiWith the cross correlation C in short-termij(k) the non-mute probability of present frame is calculatedIt is general with voice
Rate
, whereinFor the channel i max (Ei*ZCRi) experience value,For the channel i max { max [Ri(k)]*
max[Cij(k)] experience value }.3) method of the acoustic characteristic detection is also according to the present frame of the channel i
Non-mute probabilityWith the speech probabilityJudge the type of present frame, i.e., whether is noise frame, speech frame, without ring of making an uproar
Border sound frame,Wherein,
It is in the empirical value of correlation judgement, Ambient is without ambient sound frame of making an uproar, and Noise is noise frame, and Speech is speech frame.It executes
Step 140, keynote source decision sub-module 232 is according to present frameNumerical value and determine that result is extracted to determine from that all the way
Keynote source of the present frame as current location frame.Determination method is as follows: 1) when certain is Speech speech frame all the way, and another way is
Ambient without make an uproar ambient sound frame or Noise noise frame when, determine main data path of the road as current location frame；2) when
Certain is Ambient without ambient sound frame of making an uproar all the way, and when another way is Noise noise frame, determine the road as current location frame
Main data path；3) it when two-way is one species frame, determinesMain number of the maximum channel of numerical value as current location frame
According to access.Step 150 is executed, behind the keynote source for determining current location frame, compensation submodule 233 extracts significant figure from another way
According to the progress speech components compensation of keynote source.Speech components compensation method are as follows: 1) using the effective audio data in different channels in frequency
Domain carries out the subband weighted superposition compensation of entire spectrum；2) frequency spectrum duplication behaviour is carried out using effective low frequency sub-band data correlation characteristics
Make, compensates high-frequency sub-band data.Step 160 is executed, still includes a small amount of noise data, drop in the audio data after compensating
Submodule 234 make an uproar according to the noise frame of main data path speech frame forward-backward correlation acquisition noise spectrum characteristics, and exists to speech frame
Noise spectrum ingredient is effectively inhibited on frequency domain, to obtain purer efficient voice data.Step 170 is executed,
The efficient voice data-pushing ultimately generated is to terminal device.
Embodiment two
As shown in figure 3, vibration acquisition device, marked as 301, shell is marked as 302, and vibration cavity is marked as 303, pressure sensing
Device is marked as 304, and signal processor is marked as 305, and circuit board is marked as 306, and conducting wire is marked as 307, sensor contacts portion mark
Number be 308, vibration acquisition portion marked as 309, vibrate transfer part marked as 310, side is marked as 311.
A kind of bone-conduction microphone, including vibration acquisition device 301, shell 302, pressure sensor 304, signal processor
305, circuit board 306 and conducting wire 307, shell 302 is connect with vibration acquisition device 1 forms an enclosure space.Circuit board 306 is arranged
In the bottom of enclosure space inside and outside shell 302, processor is set on circuit board 306, and passes through circuit connection with circuit board 306.
Pressure sensor 4 is set between enclosure space interior circuit board 306 and vibration acquisition device 301, is fixedly connected with shell 2.Pressure
Sensor 304 and circuit board 306 pass through 307 circuit connection of conducting wire.At least partially elastic material of shell 2 is made.
In the present embodiment, vibration acquisition device 301 is contacted with the direct of pressure sensor 304, and sound passes through tangible media
Transmitting, reduces audio loss of the sound in transmittance process relative to air borne, while reducing the interference of ambient noise.
Vibration acquisition device 301 includes vibration acquisition portion 309, vibration transfer part 310 and sensor contacts portion 308, the vibration
Dynamic acquisition portion 309 and sensor contacts portion 308 are connected by vibration transfer part 310, and the sensor contacts portion 308 is passed with pressure
Sensor 304 directly contacts.
The vibration acquisition portion 309 is the cambered surface of a protrusion, and the sensor contacts portion 308 is a flat surface, and is passed with pressure
Sensor 304 directly contacts.The side 311 of vibration acquisition device 1 is recessed inwardly, and surrounds vibration with shell 302 and pressure sensor 304
Chamber 303, vibration cavity 303 are closed cavity.303 one side of vibration cavity transmits sound wave by air, on the other hand makes osteoacusis wheat
Gram wind and when human contact, are easy to produce deformation, keep vibration acquisition device 1 and facial compactness closer.
In the present embodiment, the number of vibration cavity 303 be two, respectively the two of vibration acquisition device 301 side 311 to
Sunken inside is surrounded with ipsilateral shell 302 and pressure sensor 304, i.e. vibration acquisition device 301 and pressure sensor 304
Between space two vibration cavities 303 are separated by vibration transfer part 310, two vibration cavities 303 are symmetrical.This structure makes
When bone-conduction microphone is with human contact, effective deformation can occur when the face of all angles squeezes, make to be sent out
Raw deformation is more accurate, further increases the tightness of fitting.
In the present embodiment, the vibration acquisition portion 309, vibration transfer part 310 and sensor contacts portion 308 are integrated into
The structure of type, integrally formed beneficial effect are that sound medium is more uniform, are conducive to sound transmission, reduce sound loss
And keep sound quality.Meanwhile reduce or eliminating signal errors caused by vibration cavity gas leakage.The vibration acquisition portion 309, vibration pass
It passs portion 310 and sensor contacts portion 308 is solid construction.The medium that solid construction is transmitted as sound, sound loss is smaller, sound
Wave transmission speed is faster.Reduce or avoid the defect that tradition transmits sound source vibration by air bag, more accurate realization sound source
The acquisition of signal.
Vibration acquisition device 301 is made of elastic material.Elastic material is prone to deformation, improves vibration acquisition portion 309
With the laminating degree of human body (face etc.), and material softness improve user comfort level.
Embodiment three
As shown in figure 4, illustrating one is integrated with the headphone that neck wears the exchange method of formula interactive voice earphone
400, including left-side earphone 410 and right-side earphone 430.Neck has been concentrated to wear the friendship of formula interactive voice earphone in left-side earphone 410
The core component of mutual method, including the 3G/4G network marked as 420, wifi/ bluetooth marked as 421, marked as 422
LCD show/touch screen, acceleration sensor/gyroscope marked as 423, the GPS marked as 424, bone marked as 425 passes
Microphone (left side) is led, the loudspeaker (left side) marked as 426, the Audio Signal Processing (DAC) marked as 427, the local marked as 428
Data storage and the CPU marked as 429.3G/4G network, wifi/ bluetooth, LCD show/touch screen, acceleration sensor/gyro
Instrument, GPS, Audio Signal Processing (DAC) are connected with local datastore respectively at CPU, bone-conduction microphone (left side) and loudspeaker
(left side) is then connected with Audio Signal Processing (DAC).
Some auxiliary component parts are concentrated in right-side earphone 430, including the loudspeaker (right side) marked as 440, marked as 441
With 443 sensor, Trackpad music control marked as 442, bone-conduction microphone (right side) marked as 444 and marked as
445 battery.Loudspeaker (right side), sensor, the control of Trackpad music are connected with battery respectively at the CPU in left-side earphone, bone
Conduction microphone (right side) is connected with loudspeaker (right side).
Example IV
As shown in figure 5, executing step 500, main audio data is imported.Step 510 is executed, the ring stored in memory is transferred
Border determines data.Step 520 is executed, when main audio data being determined that data are compared with environment, and determining main audio input
The noisy environment on periphery.Sequence executes step 530 and step 540, and environmental noise data, and and main audio are transferred from memory
Data carry out single frames comparison.Step 550 is executed, audio number identical with environmental noise data in main audio data single frames is removed
According to.Step 560 is executed, is generated effectively without the audio data of noise.
For a better understanding of the present invention, the above combination specific embodiments of the present invention are described in detail, but are not
Limitation of the present invention.Any simple modification made to the above embodiment according to the technical essence of the invention, still belongs to
In the range of technical solution of the present invention.In this specification the highlights of each of the examples are it is different from other embodiments it
Locate, the same or similar part cross-reference between each embodiment.For system embodiments, due to itself and method
Embodiment corresponds to substantially, so being described relatively simple, the relevent part can refer to the partial explaination of embodiments of method.
Methods, devices and systems of the invention may be achieved in many ways.For example, software, hardware, firmware can be passed through
Or any combination of software, hardware, firmware realizes method and system of the invention.The step of for the method it is above-mentioned
Sequence is merely to be illustrated, and the step of method of the invention is not limited to sequence described in detail above, unless with other sides
Formula illustrates.In addition, in some embodiments, the present invention can be also embodied as recording program in the recording medium, these
Program includes for realizing machine readable instructions according to the method for the present invention.Thus, the present invention also covers storage for executing
The recording medium of program according to the method for the present invention.
Description of the invention is given for the purpose of illustration and description, and is not exhaustively or will be of the invention
It is limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.It selects and retouches
It states embodiment and is to more preferably illustrate the principle of the present invention and practical application, and those skilled in the art is enable to manage
The solution present invention is to design various embodiments suitable for specific applications with various modifications.
Claims (10)
1. a kind of neck wears the exchange method of formula interactive voice earphone, audio signal is acquired by audio collection module, feature exists
In further comprising the steps of:
Step 1: receiving the audio signal, and voice signal is converted to analog electrical signal；
Step 2: the analog electrical signal is converted to the storable digital signal of multichannel；
Step 3: handling the digital signal, and export effective audio data；
Step 4: effective audio data is pushed to terminal device.
2. the exchange method that neck as described in claim 1 wears formula interactive voice earphone, it is characterised in that: the audio collection mould
Block includes at least one bone-conduction microphone and at least one microphone.
3. the exchange method that neck as claimed in claim 2 wears formula interactive voice earphone, it is characterised in that: the audio signal bags
Include the first audio signal and the second audio signal.
4. the exchange method that neck as claimed in claim 3 wears formula interactive voice earphone, it is characterised in that: the first audio letter
Number refer to the mechanical wave generated using bone-conduction microphone acquisition due to the vibration of user's body.
5. the exchange method that neck as claimed in claim 4 wears formula interactive voice earphone, it is characterised in that: the second audio letter
Number refer to the sound wave acquired in the time range that the mechanical wave generates using the microphone.
6. the exchange method that neck as claimed in claim 5 wears formula interactive voice earphone, it is characterised in that: the step 3 is also wrapped
Include following sub-step:
Step 31: acoustic characteristic detection is carried out to the collected audio signal；
Step 32: carrying out the judgement of keynote source；
Step 33: carrying out the compensation of keynote source；
Step 34: eliminating noise.
7. the exchange method that neck as claimed in claim 6 wears formula interactive voice earphone, it is characterised in that: the acoustic characteristic inspection
Survey includes at least one of speech detection, noise measuring and correlative character extraction.
8. the exchange method that neck as claimed in claim 7 wears formula interactive voice earphone, it is characterised in that: the acoustic characteristic inspection
The method of survey includes each frame length that extracts for the audio data x of Tmsi(n), and average energy E is calculatedi, zero-crossing rate ZCRi, in short-term
Correlation RiCross correlation C in short-termij(k),
Wherein,
9. a kind of neck wears the interactive system of formula interactive voice earphone, including the audio collection module for acquiring audio signal,
It is characterized in that, further includes with lower module:
Receiving module: analog electrical signal is converted into for receiving the audio signal, and voice signal；
Conversion module: for the analog electrical signal to be converted into the storable digital signal of multichannel；
Processing module: for handling the digital signal, and effective audio data is exported；
Output module: for effective audio data to be pushed to terminal device；
The audio collection module is arranged in the neck and wears on the earplug of formula interactive voice earphone and/or on host；The reception
Module, conversion module, processing module and output module are integrated on the control device.
10. a kind of neck wears the interactive device of formula interactive voice earphone, including shell, which is characterized in that including such as claim 9 institute
The interactive system stated.
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107071647A (en) * | 2016-11-18 | 2017-08-18 | 北京金锐德路科技有限公司 | A kind of sound collection method, system and device |
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