CN114125635A - Active noise reduction earphone pairing connection method - Google Patents
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- CN114125635A CN114125635A CN202111419956.1A CN202111419956A CN114125635A CN 114125635 A CN114125635 A CN 114125635A CN 202111419956 A CN202111419956 A CN 202111419956A CN 114125635 A CN114125635 A CN 114125635A
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000001514 detection method Methods 0.000 claims description 12
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- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1083—Reduction of ambient noise
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1783—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase handling or detecting of non-standard events or conditions, e.g. changing operating modes under specific operating conditions
- G10K11/17833—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase handling or detecting of non-standard events or conditions, e.g. changing operating modes under specific operating conditions by using a self-diagnostic function or a malfunction prevention function, e.g. detecting abnormal output levels
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1785—Methods, e.g. algorithms; Devices
- G10K11/17853—Methods, e.g. algorithms; Devices of the filter
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R29/00—Monitoring arrangements; Testing arrangements
- H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
- H04R29/002—Loudspeaker arrays
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/10—Applications
- G10K2210/108—Communication systems, e.g. where useful sound is kept and noise is cancelled
- G10K2210/1081—Earphones, e.g. for telephones, ear protectors or headsets
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
- H04R2460/01—Hearing devices using active noise cancellation
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention relates to the technical field of noise reduction earphones, in particular to an active noise reduction earphone pairing connection method.
Description
Technical Field
The invention relates to the technical field of noise reduction earphones, in particular to an active noise reduction earphone pairing and connecting method.
Background
The wireless earphone is a wireless audio output device, and as a single module or an accessory, the wireless earphone may need to be connected with different terminal devices when in use, and outputs audio emitted by each terminal device to a user. The noise reduction earphones have the advantages that due to the fact that the noise reduction performance is not consistent, when the noise reduction earphones are matched, if two noise reduction earphones are simply paired randomly, the noise reduction performance of the left noise reduction earphone and the right noise reduction earphone is not consistent, the noise of the left noise reduction earphone and the right noise reduction earphone is different, the performance of the noise reduction earphones is reduced, or the wearing is uncomfortable, the pairing mechanism of the left and the right existing earphones is complex when the left and the right earphones are paired, and the experience is affected.
Disclosure of Invention
The invention provides an active noise reduction earphone pairing connection method aiming at the problems in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides an active noise reduction earphone pairing connection method, which comprises the following steps:
the method comprises the following steps that firstly, noises outside a left earphone and a right earphone in the same environment are collected through a pickup sensor respectively, and adopted noise information is sent to a sound decoding module;
step two, the sound decoding module decodes the received noise data to obtain a time domain waveform corresponding to the noise data, and sends the obtained time domain waveform to the noise reduction modules of the left earphone and the right earphone;
thirdly, the noise reduction module carries out reverse noise reduction processing on the received time domain waveforms of the left earphone and the right earphone and sends the noise reduction waveforms of the left earphone and the right earphone after noise reduction to the microprocessor;
fourthly, the microprocessor encodes and stores the received noise reduction waveforms of the left earphone and the right earphone into a storage unit;
fifthly, the calling unit calls the noise reduction waveform of any left earphone in the storage unit and sends the noise reduction waveform to the analysis and comparison module, and the calling unit calls the noise reduction waveform of any right earphone in the storage unit and sends the noise reduction waveform to the analysis and comparison module;
and step six, the analysis and comparison module calculates according to the coincidence degree of the received noise reduction waveform of the left earphone and the noise reduction waveform of the right earphone, if the calculation result is lower than a preset standard value of the analysis and comparison module, the communication addresses of the left earphone and the right earphone are obtained through the obtaining unit, the communication addresses of the left earphone and the right earphone are matched, and if the calculation result is higher than the preset standard value of the analysis and comparison module, the calling unit is informed to call the noise reduction waveform of the next left earphone and the noise reduction waveform of the next right earphone again.
Preferably, if the pairing is successful in the step five, the analysis and comparison module sends pairing success information to the microprocessor, and the microprocessor deletes the noise reduction waveforms of the successfully paired left and right earphones.
Preferably, the obtaining unit reads the wireless communication addresses of the left and right earphones from the flash, wherein the wireless communication addresses are bluetooth communication addresses, and the communication addresses comprise 48bits digital symbols.
Preferably, the noise reduction module generates noise reduction time domain waveforms of the left earphone and the right earphone inversely according to the received time domain waveforms of the left earphone and the right earphone, and performs phase superposition on the time domain waveforms of the left earphone and the right earphone and the noise reduction time domain waveforms of the left earphone and the right earphone to generate the noise reduction waveforms.
Preferably, the same environment of step one includes a plurality of analog sounds, and the analog sounds include at least low-frequency noise, high-frequency noise, and mixed high-and low-frequency noise.
Preferably, after repeating step six iteratively until the left and right earphones cannot be paired, performing noise reduction detection again on the left and right earphones corresponding to the noise reduction waveforms stored in the storage unit.
Preferably, the noise reduction module of the headphone for detecting noise reduction is subjected to parameter adjustment, the noise reduction coefficient of the filter in the noise reduction module is adjusted, and then the detection in the first step to the sixth step is restarted.
Preferably, the destruction process is performed on the left and right earphones which are not paired after the detection of the first to sixth steps is started again.
The invention has the beneficial effects that:
the invention provides an active noise reduction earphone pairing connection method, which comprises the following steps:
the method comprises the following steps that firstly, noises outside a left earphone and a right earphone in the same environment are collected through a pickup sensor respectively, and adopted noise information is sent to a sound decoding module; step two, the sound decoding module decodes the received noise data to obtain a time domain waveform corresponding to the noise data, and sends the obtained time domain waveform to the noise reduction modules of the left earphone and the right earphone; thirdly, the noise reduction module carries out reverse noise reduction processing on the received time domain waveforms of the left earphone and the right earphone and sends the noise reduction waveforms of the left earphone and the right earphone after noise reduction to the microprocessor; fourthly, the microprocessor encodes and stores the received noise reduction waveforms of the left earphone and the right earphone into a storage unit; fifthly, the calling unit calls the noise reduction waveform of any left earphone in the storage unit and sends the noise reduction waveform to the analysis and comparison module, and the calling unit calls the noise reduction waveform of any right earphone in the storage unit and sends the noise reduction waveform to the analysis and comparison module; step six, the analysis and comparison module calculates according to the coincidence degree of the received noise reduction waveform of the left earphone and the noise reduction waveform of the right earphone, if the calculation result is lower than a preset standard value of the analysis and comparison module, the communication addresses of the left earphone and the right earphone are obtained through the obtaining unit, the communication addresses of the left earphone and the right earphone are matched, and if the calculation result is higher than the preset standard value of the analysis and comparison module, the calling unit is informed to call the noise reduction waveform of the next left earphone and the noise reduction waveform of the next right earphone again; according to the invention, two left earphones and two right earphones with uniform noise reduction performance are selected for pairing after noise reduction waveforms after noise reduction are compared, so that the difference of the noise reduction performance of the left earphones and the noise reduction performance of the right earphones is reduced, the noise reduction performance of the left earphones and the noise reduction performance of the right earphones are basically consistent, and the wearing comfort of a user is provided.
Drawings
FIG. 1 is a flow chart of the method of the present invention.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention is described in detail below with reference to the attached drawings.
As shown in fig. 1, the active noise reduction earphone pairing connection method provided by the present invention includes the following steps: the method comprises the following steps that firstly, noises outside a left earphone and a right earphone in the same environment are collected through a pickup sensor respectively, and adopted noise information is sent to a sound decoding module; step two, the sound decoding module decodes the received noise data to obtain a time domain waveform corresponding to the noise data, and sends the obtained time domain waveform to the noise reduction modules of the left earphone and the right earphone; thirdly, the noise reduction module carries out reverse noise reduction processing on the received time domain waveforms of the left earphone and the right earphone and sends the noise reduction waveforms of the left earphone and the right earphone after noise reduction to the microprocessor; fourthly, the microprocessor encodes and stores the received noise reduction waveforms of the left earphone and the right earphone into a storage unit; fifthly, the calling unit calls the noise reduction waveform of any left earphone in the storage unit and sends the noise reduction waveform to the analysis and comparison module, and the calling unit calls the noise reduction waveform of any right earphone in the storage unit and sends the noise reduction waveform to the analysis and comparison module; step six, the analysis and comparison module calculates according to the coincidence degree of the received noise reduction waveform of the left earphone and the noise reduction waveform of the right earphone, if the calculation result is lower than a preset standard value of the analysis and comparison module, the communication addresses of the left earphone and the right earphone are obtained through the obtaining unit, the communication addresses of the left earphone and the right earphone are matched, and if the calculation result is higher than the preset standard value of the analysis and comparison module, the calling unit is informed to call the noise reduction waveform of the next left earphone and the noise reduction waveform of the next right earphone again; according to the invention, two left earphones and two right earphones with uniform noise reduction performance are selected for pairing after noise reduction waveforms after noise reduction are compared, so that the difference of the noise reduction performance of the left earphones and the noise reduction performance of the right earphones is reduced, the noise reduction performance of the left earphones and the noise reduction performance of the right earphones are basically consistent, and the wearing comfort of a user is provided.
In this embodiment, if the pairing is successful in the fifth step, the analysis and comparison module sends the pairing success information to the microprocessor, the microprocessor deletes the noise reduction waveforms of the left and right earphones which are successfully paired, and the calling unit can call the left and right earphones from the deleted storage unit, so that one earphone is prevented from being paired twice, and the workload of the calling unit and the analysis and comparison module can be reduced.
In this embodiment, the obtaining unit reads the wireless communication addresses of the left and right earphones from the flash, where the wireless communication addresses are bluetooth communication addresses, and the communication addresses include 48bits digital symbols.
In this embodiment, the noise reduction module generates noise reduction time domain waveforms of the left and right earphones in reverse directions according to the received time domain waveforms of the left and right earphones, and performs phase superposition on the time domain waveforms of the left and right earphones and the noise reduction time domain waveforms of the left and right earphones to generate the noise reduction waveforms.
In this embodiment, in order to make the detection of the present invention more accurate, the same environment of step one includes a plurality of analog sounds, the analog sounds at least include low-frequency noise, high-frequency noise, and high-low frequency mixed noise, and the pickup sensor respectively collects the low-frequency noise, the high-frequency noise, and the high-low frequency mixed noise.
In this embodiment, the step six is repeated iteratively until the left and right earphones cannot be paired, the noise reduction detection is performed again on the left and right earphones corresponding to the noise reduction waveforms stored in the storage unit, the parameter adjustment is performed on the noise reduction module of the earphone with the noise reduction detection performed again, the noise reduction coefficient adjustment is performed on the filter in the noise reduction module, then the detection in the step one to the step six is performed again, the destruction processing is performed on the left and right earphones which are not paired after the detection in the step one to the step six is performed again, after the detection in the step two, it is described that the noise reduction module has a quality problem, and in order to reduce defective products, the destruction processing is performed directly.
Although the present invention has been described with reference to the above preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. An active noise reduction earphone pairing connection method is characterized by comprising the following steps:
the method comprises the following steps that firstly, noises outside a left earphone and a right earphone in the same environment are collected through a pickup sensor respectively, and adopted noise information is sent to a sound decoding module;
step two, the sound decoding module decodes the received noise data to obtain a time domain waveform corresponding to the noise data, and sends the obtained time domain waveform to the noise reduction modules of the left earphone and the right earphone;
thirdly, the noise reduction module carries out reverse noise reduction processing on the received time domain waveforms of the left earphone and the right earphone and sends the noise reduction waveforms of the left earphone and the right earphone after noise reduction to the microprocessor;
fourthly, the microprocessor encodes and stores the received noise reduction waveforms of the left earphone and the right earphone into a storage unit;
fifthly, the calling unit calls the noise reduction waveform of any left earphone in the storage unit and sends the noise reduction waveform to the analysis and comparison module, and the calling unit calls the noise reduction waveform of any right earphone in the storage unit and sends the noise reduction waveform to the analysis and comparison module;
and step six, the analysis and comparison module calculates according to the coincidence degree of the received noise reduction waveform of the left earphone and the noise reduction waveform of the right earphone, if the calculation result is lower than a preset standard value of the analysis and comparison module, the communication addresses of the left earphone and the right earphone are obtained through the obtaining unit, the communication addresses of the left earphone and the right earphone are matched, and if the calculation result is higher than the preset standard value of the analysis and comparison module, the calling unit is informed to call the noise reduction waveform of the next left earphone and the noise reduction waveform of the next right earphone again.
2. The active noise reduction earphone pairing connection method according to claim 1, wherein: and if the pairing is successful, the analysis and comparison module sends pairing success information to the microprocessor, and the microprocessor deletes the noise reduction waveforms of the left and right earphones which are successfully paired.
3. The active noise reduction earphone pairing connection method according to claim 1, wherein: the acquisition unit reads the wireless communication addresses of the left earphone and the right earphone from the flash, wherein the wireless communication addresses are Bluetooth communication addresses, and the communication addresses comprise 48bits digital symbols.
4. The active noise reduction earphone pairing connection method according to claim 1, wherein: the noise reduction module generates noise reduction time domain waveforms of the left earphone and the right earphone reversely according to the received time domain waveforms of the left earphone and the right earphone, and performs phase superposition on the time domain waveforms of the left earphone and the right earphone and the noise reduction time domain waveforms of the left earphone and the right earphone to generate noise reduction waveforms.
5. The active noise reduction earphone pairing connection method according to claim 1, wherein: the same environment of the first step comprises a plurality of analog sounds, wherein the analog sounds at least comprise low-frequency noise, high-frequency noise and high-low frequency mixed noise.
6. The active noise reduction earphone pairing connection method according to claim 1, wherein: and iterating and repeating the step six until the left and right earphones can not be paired, and then carrying out noise reduction detection again on the left and right earphones corresponding to the noise reduction waveforms stored in the storage unit.
7. The active noise reduction earphone pairing connection method according to claim 6, wherein: and adjusting parameters of a noise reduction module of the earphone for detecting noise reduction again, adjusting a noise reduction coefficient of a filter in the noise reduction module, and then restarting to perform detection from the first step to the sixth step.
8. The active noise reduction earphone pairing connection method according to claim 7, wherein: and destroying the left and right earphones which are not paired after the detection of the first step to the sixth step is restarted.
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| CN202111419956.1A CN114125635A (en) | 2021-11-26 | 2021-11-26 | Active noise reduction earphone pairing connection method |
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| CN202111419956.1A CN114125635A (en) | 2021-11-26 | 2021-11-26 | Active noise reduction earphone pairing connection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113301469A (en) * | 2021-05-13 | 2021-08-24 | 深圳市美恩微电子有限公司 | High stereo noise reduction Bluetooth headset |
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