CN107018461A - Earphone and its noise-reduction method - Google Patents
Earphone and its noise-reduction method Download PDFInfo
- Publication number
- CN107018461A CN107018461A CN201710174050.5A CN201710174050A CN107018461A CN 107018461 A CN107018461 A CN 107018461A CN 201710174050 A CN201710174050 A CN 201710174050A CN 107018461 A CN107018461 A CN 107018461A
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- China
- Prior art keywords
- microphone
- noise reduction
- earphone
- noise
- call
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Classifications
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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
-
- 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
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Telephone Set Structure (AREA)
Abstract
The embodiment of the present invention provides a kind of earphone and its noise-reduction method, and the earphone includes：Two receivers, the receiver includes shell and the phonation unit being housed in the shell；A call microphone is provided with wherein one receiver, a noise reduction microphone is provided with another receiver；The call microphone and the noise reduction microphone are used to carry out up noise reduction and descending noise reduction to earphone.The earphone and its noise-reduction method of the present embodiment, by setting a noise reduction microphone and call microphone respectively in the receiver of earphone, just can realize uplink and downlink noise reduction, improve the stability of noise reduction.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of earphone and its noise-reduction method.
Background technology
With continuing to develop for terminal, user is to the performance requirement more and more higher of terminal, such as the anti-acoustic capability to earphone
It is required that uprising.
Three microphones are provided with existing earphone, two of which microphone is arranged in receiver, and a remaining wheat
Gram wind is arranged on earphone cord.When carrying out up noise reduction, it is necessary to use three microphones simultaneously, and due to being arranged on earphone cord
On microphone position do not fix, thus in up noise reduction, cause anti-acoustic capability very unstable, or even occur that noise is superimposed
Situation.
The content of the invention
The embodiment of the present invention provides a kind of earphone and its noise-reduction method, to improve the stability of noise reduction.
The other side of the present invention partly will become bright described in discussion below or partially by explanation
Show or can be understood by putting into practice the illustrative embodiments of the present invention.
The embodiment of the present invention provides a kind of earphone, and it includes：Two receivers, the receiver includes shell and is housed in institute
State the phonation unit in shell；A call microphone is provided with wherein one receiver, is set in another receiver
There is a noise reduction microphone；
The call microphone and the noise reduction microphone are used to carry out up noise reduction and descending noise reduction to earphone.
The embodiment of the present invention provides a kind of noise-reduction method of earphone, and wherein earphone includes two receivers, and the receiver includes
Shell and the phonation unit being housed in the shell；A call microphone is provided with wherein one receiver, another
A noise reduction microphone is provided with an outer receiver；Methods described includes：
Up noise reduction and descending noise reduction are carried out to the earphone by the call microphone and the noise reduction microphone.
Earphone and its noise-reduction method provided in an embodiment of the present invention, by setting a noise reduction wheat respectively in the receiver of earphone
Gram wind and call microphone, just can realize uplink and downlink noise reduction, due to that need not set microphone on earphone cord, therefore carry
The high stability of noise reduction.
Before following description is carried out, some words and phrase used in patent document are carried out
Definition is favourable：Term " comprising " and its derivative table include but is not limited to up to expression；Term "or" is inclusive implication, is shown
And/or；Phrase " with ... it is associated " and " related to this " and its derivative table up to can represent to include, be included wherein,
With ... interconnect, contain, be contained in wherein, be connected to or with ... be connected, be couple to or with ... coupling, can be with ... logical
Letter, with ... cooperate, interlock, juxtaposition, close to, be bonded to or with ... property bond, have, having ... etc.；And art
Language " controller " represents any device of at least one operation of control, system or part thereof, this device can hardware, firmware or
The device implemented in software or at least two some combinations.It should be noted that the function associated with any specific controller can
To carry out distributed or Centralized layout in Local or Remote.The definition of some words and phrase is provided in patent document,
Those skilled in the art will appreciate that, in many cases (if not most cases), these definition be applied to pair
The word of such definition and the previous of phrase and future usage.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, makes required in being described below to embodiment
Accompanying drawing is briefly described.It should be evident that drawings in the following description are only some embodiments of the present invention, for
For those skilled in the art, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other attached
Figure.
For a more complete understanding of the present invention and its advantage, following explanation is carried out below in conjunction with accompanying drawing, wherein
Identical drawing reference numeral represents same section in the following description.
Fig. 1 is the structural representation of earphone provided in an embodiment of the present invention.
Fig. 2 is the mplifying structure schematic diagram of one of receiver provided in an embodiment of the present invention.
Fig. 3 is the mplifying structure schematic diagram of another receiver provided in an embodiment of the present invention.
Fig. 4 is the signal acquisition schematic diagram of earphone provided in an embodiment of the present invention.
Fig. 5 is the collimated beam of sound schematic diagram of earphone provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described.Obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, the every other implementation that those skilled in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
Term " first ", " second ", " the 3rd " in description and claims of this specification and above-mentioned accompanying drawing etc.
(if present) is for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that this
The object of sample description can be exchanged in the appropriate case.In addition, term " comprising " and " having " and their any deformation, meaning
Figure is to cover non-exclusive include.
In patent document, Fig. 1 to the Fig. 5 being discussed herein below and each implementation for describing principle disclosed by the invention
Example is merely to illustrate, and should not be construed as limiting scope disclosed by the invention.Those skilled in the art will appreciate that, the present invention
Principle can implement in any device suitably arranged.Illustrative embodiments are will be explained in, this is shown in the drawings
The example of a little embodiments.In addition, terminal according to exemplary embodiment will be described in detail with reference to the attached drawings.It is identical attached in accompanying drawing
Figure grade refers to identical element.
Although the terms such as " first ", " second " can be used to describe each embodiment, this base part is not necessarily limited to
State term.Above-mentioned term is only used for distinguishing different parts.For example, in the case where not departing from the scope of illustrative embodiments,
First element is referred to alternatively as the second element, similarly, and the second element is referred to alternatively as the first element.Term used herein " and/
Or " include any and all combination of one or more of listed relevant entry entry.
The term used in description of the invention is only used for describing particular implementation, and is not intended the display present invention's
Concept.Unless there is clearly different meanings in context, otherwise, the table of plural form is covered in the expression used in the singular
Reach.In the description of the present invention, it should be appreciated that the term meant for illustration such as " comprising ", " having " and " containing " has this hair
The feature that is disclosed in bright specification, numeral, step, action, part, part or its combination, and be not intended exclusion may be present or
Other one or more features, numeral, step, action, part, part or the possibility of its combination can be added.Phase in accompanying drawing
Similar elements are referred to reference number.
Fig. 1 shows the front view of the earphone according to exemplary embodiment of the invention.
With reference to Fig. 1, according to the earphone 10 of illustrative embodiments may include two receivers 11,12, earphone cord 13 and insert
First 14；Each receiver is respectively connected with an earphone cord.The receiver 11 includes shell 111 and the sounding list being housed in shell 111
Member 112, is additionally provided with a call microphone 113 in the receiver 11.The receiver 12 includes shell 121 and is housed in shell
Phonation unit 122 in 121, is additionally provided with a noise reduction microphone 123 in the receiver 12.
With reference to Fig. 2, the shell 111 of the receiver 11 includes protecgulum 21 and bonnet 22, in assembling, the protecgulum 21 and bonnet 22
Fasten, the phonation unit 112 and the call microphone 113 are arranged in the cavity of protecgulum 21 and the formation of bonnet 22.The receiver
The structure of 12 shell is similar to the shell mechanism of the receiver 11, with reference to Fig. 3, and the shell 121 of the receiver 12 includes the He of protecgulum 23
Bonnet 24, the phonation unit 122 and the noise reduction microphone 123 are arranged in the cavity of the protecgulum 23 and the bonnet 24 formation.
Fig. 1 is returned to, can be set wherein on the earphone cord 13 has button 131.In one embodiment, the button 131 also may be used
So that volume to be adjusted.In one embodiment, the button 131 is integrated pushbutton, and not only volume can be entered
Row regulation, also can control music playback, receive calls or terminates converse etc..
The call microphone 113 and the noise reduction microphone 123 are used to carry out up noise reduction and descending noise reduction to earphone 10.
In one embodiment, the call microphone 113 is ANC (Active Noise Control, active noise controlling) microphone, electricity
Capacitance-type microphone or electrodynamic type microphone.In one embodiment, the noise reduction microphone 123 is ANC microphones.
In one embodiment, the call microphone 113 and the noise reduction microphone 123 are used to pass through active noise controlling side
Method carries out descending noise reduction to earphone 10.Wherein active noise controlling method is that the noise for entering human ear is sampled, by anti-
To, amplification after produce one " antinoise ", should " antinoise " with sampling noise be overlapped, with reach suppression noise mesh
's.In one embodiment, the call microphone 113 and the noise reduction microphone 123 are used for by beam-forming method to earphone
10 carry out up noise reduction.
The call microphone 113 and the noise reduction microphone 123 are all used to handle the voice signal received, to disappear
Except the noise signal on the direction of human ear both sides, and in head fore-and-aft direction formation collimated beam of sound.
As shown in figure 4, the embodiment of the present invention earphone in noise reduction process, utilize the noise reduction microphone in earphone 10
123 are handled with 113 pairs of voice signals received of the call microphone, to eliminate the letter of the noise on the direction of human ear both sides
Number, and in head fore-and-aft direction formation collimated beam of sound.Wherein, the left and right Er Nei positioned at user sets the call microphone respectively
113 and the noise reduction microphone 123, the axle of the call microphone 113 and the noise reduction microphone 123 along the vertical direction by face
Line is symmetrical arranged.Namely the geometric center of the call microphone 113 and the geometric center of the noise reduction microphone 123 are located at same
On horizontal line.N1 and n2 represent the noise signal on the direction of human ear both sides respectively, and s represents voice signal.
With reference to Fig. 5, F represents the direction in the front of user's head 30, and B represents the direction at the rear of user's head 30.The noise reduction wheat
Gram wind 123 and the call microphone 113 all can be to receiving voice signal s processing, eliminate on the direction of human ear both sides
Noise signal n1 and n2, and in the fore-and-aft direction of head 30 formation collimated beam of sound.Namely the geometric center of the call microphone 113 and
The line of the geometric center of the noise reduction microphone 123 is located in the plane, and the line is the axis in the plane width direction.
By the face of user geometric center and along head fore-and-aft direction extend axis be the plane length direction axis.
Noise signal and voice signal on the left of the call microphone 113 detection human ear, the noise reduction microphone 123 detection people
Noise signal and voice signal on the right side of ear.The noise signal on the left of human ear that is detected due to the call microphone 113 and should
Noise reduction microphone 123 detects the difference that the energy and phase of the noise signal on the right side of human ear are all present, and the call microphone
Voice signal and the noise reduction microphone 123 on the left of 113 human ears detected detect the energy of the voice signal on the right side of human ear
The difference also all existed with phase, so as to be calculated by algorithm, eliminates the noise of the human ear left and right sides, improves speech quality.
It should be understood that the position of above-mentioned call microphone and noise reduction microphone can be exchanged, namely in the receiver 12
It is provided with a call microphone 113.A noise reduction microphone 123 is provided with the receiver 11.
Due to microphone, and the call microphone and the position of noise reduction microphone of the present embodiment need not be set on earphone cord
Fixation is put, so that anti-acoustic capability is stable, and is not in the situation of noise superposition in uplink and downlink noise reduction, therefore enter
One step improves anti-acoustic capability.Further, since eliminating the microphone on earphone, production cost is also reduced.
Earphone provided in an embodiment of the present invention, by setting a noise reduction microphone and call wheat respectively in the receiver of earphone
Gram wind, just can realize uplink and downlink noise reduction, due to that need not set microphone on earphone cord, therefore improve the steady of noise reduction
It is qualitative, and then improve speech quality.
The embodiment of the present invention also provides a kind of noise-reduction method of earphone, wherein with reference to Fig. 1, according to illustrative embodiments
Earphone 10 may include two receivers 11,12, earphone cord 13 and plug 14；Each receiver is respectively connected with an earphone cord.This is listened
Cylinder 11 includes shell 111 and the phonation unit 112 being housed in shell 111, and a call wheat is additionally provided with the receiver 11
Gram wind 113.The receiver 12 includes shell 121 and the phonation unit 122 being housed in shell 121, is also set up in the receiver 12
There is a noise reduction microphone 123.
With reference to Fig. 2, the shell 111 of the receiver 11 includes protecgulum 21 and bonnet 22, in assembling, the protecgulum 21 and bonnet 22
Fasten, the phonation unit 112 and the call microphone 113 are arranged in the cavity of protecgulum 21 and the formation of bonnet 22.The receiver
The structure of 12 shell is similar to the shell mechanism of the receiver 11, with reference to Fig. 3, namely the receiver 12 shell 121 also include before
Lid 23 and bonnet 24, the phonation unit 122 and the noise reduction microphone 123 are arranged on the cavity of the protecgulum 23 and the bonnet 24 formation
It is interior.
Fig. 1 is returned to, can be set wherein on the earphone cord 13 has button 131.In one embodiment, the button 131 also may be used
So that volume to be adjusted.In one embodiment, the button 131 is integrated pushbutton, and not only volume can be entered
Row regulation, also can control music playback, receive calls or terminates converse etc..
In one embodiment, the call microphone 113 is ANC (Active Noise Control, active noise control
System) microphone, Electret Condencer Microphone or electrodynamic type microphone.In one embodiment, the noise reduction microphone 123 is ANC wheats
Gram wind.
This method is specifically included：
S101, up noise reduction and descending drop carried out to earphone 10 by the call microphone 113 and the noise reduction microphone 123
Make an uproar.
In one embodiment, the call microphone 113 and the noise reduction microphone 123 are specifically for passing through active noise control
Method processed carries out descending noise reduction to earphone 10.In one embodiment, the call microphone 113 and the noise reduction microphone 123 have
Body is used to carry out up noise reduction to earphone 10 by beam-forming method.
Wherein, handled by the call microphone 113 and 123 pairs of voice signals received of the noise reduction microphone,
To eliminate the noise signal on the direction of human ear both sides, and in head fore-and-aft direction formation collimated beam of sound.
As shown in figure 4, the embodiment of the present invention earphone in noise reduction process, utilize the noise reduction microphone in earphone 10
123 are handled with 113 pairs of voice signals received of the call microphone, to eliminate the letter of the noise on the direction of human ear both sides
Number, and in head fore-and-aft direction formation collimated beam of sound.Wherein, the left and right Er Nei positioned at user sets the call microphone respectively
113 and the noise reduction microphone 123, the call microphone 113 and the noise reduction microphone 123 are along the axis by face vertical direction
It is symmetrical arranged.Namely the geometric center of the call microphone 113 and the geometric center of the noise reduction microphone 123 are located at same water
On horizontal line.N1 and n2 represent the noise signal on the direction of human ear both sides respectively, and s represents voice signal.
With reference to Fig. 5, F represents the direction in the front of user's head 30, and B represents the direction at the rear of user's head 30.The noise reduction wheat
Gram wind 123 and the call microphone 113 all can be to receiving voice signal s processing, eliminate on the direction of human ear both sides
Noise signal n1 and n2, and in the fore-and-aft direction of head 30 formation collimated beam of sound.Namely the geometric center of the call microphone 113 and
The line of the geometric center of the noise reduction microphone 123 is located in the plane, and the line is the axis in the plane width direction.
By the face of user geometric center and along head fore-and-aft direction extend axis be the plane length direction axis.
Noise signal and voice signal on the left of the call microphone 113 detection human ear, the noise reduction microphone 123 detection people
Noise signal and voice signal on the right side of ear.The noise signal on the left of human ear that is detected due to the call microphone 113 and should
Noise reduction microphone 123 detects the difference that the energy and phase of the noise signal on the right side of human ear are all present, and the call microphone
The energy for the voice signal on the right side of human ear that voice signal and the noise reduction microphone 123 on the left of 113 human ears detected are detected
The difference that amount and phase are also all present, so as to be calculated by algorithm, eliminates the noise of the human ear left and right sides, improves call matter
Amount.
Due to microphone, and the call microphone and the position of noise reduction microphone of the present embodiment need not be set on earphone cord
Fixation is put, so that anti-acoustic capability is stable, and is not in the situation of noise superposition in uplink and downlink noise reduction, therefore enter
One step improves anti-acoustic capability.Further, since eliminating the microphone on earphone, production cost is also reduced.
As described above, the noise-reduction method of earphone provided in an embodiment of the present invention, by being set respectively in the receiver of earphone
One noise reduction microphone and call microphone, just can realize uplink and downlink noise reduction, due to that need not set Mike on earphone cord
Wind, therefore the stability of noise reduction is improved, and then improve speech quality.
In order to promote to understand one or more exemplary embodiments, the exemplary embodiment shown in accompanying drawing is with reference to, and
And these embodiments are described using concrete syntax.However, this concrete syntax is not limiting as the scope of idea of the invention,
But exemplary embodiment should be understood to cover all exemplary embodiments that those skilled in the art typically understands.
Word " mechanism ", " element ", " mode " and " configuration " is to refer to, and is not limited to mechanically or physically embodiment, and
It is the software program that may include to be combined with processor etc..
The specific embodiment being illustrated and described herein is the illustrative examples of the present invention, and is not intended to limit in any way
The scope of the present invention processed.For brevity, other function aspects of conventional electronic devices, control system, software development and system
(and part in the single operation part of system) can be not described in detail.In addition, the connecting line shown in each accompanying drawing or connection
Device is intended to indicate the example functional relationships between each element and/or physically or logically connected.It should be noted that can be deposited in actual device
In many replacements or extra functional relationship, physical connection or logic connection.In addition, except not element is specifically described as " necessity
" or " crucial ", otherwise, part or part are not essential for the practice present invention.In technical elements,
The open implication of the expression such as word " comprising " used herein, " having ".
Term " one " has been used (especially to exist with "the" and similar word during idea of the invention is described
In appended claims), it should these terms are construed to not only cover odd number but also cover plural number.In addition, unless herein
It is otherwise noted, is referred to when otherwise describing number range herein merely by quick method and belong to each of relevant range
Independent value, and each independent value is incorporated into this specification, just as these values are individually stated herein.
In addition, unless otherwise stated herein or the step of context has clearly opposite prompting, all methods being otherwise somebody's turn to do herein
It can be performed by any appropriate order.The step of change of the present invention is not limited to description order.Unless advocate in addition,
Otherwise using any and all example presented herein or exemplary language (for example, " such as ") all just to more preferable
Ground illustrates idea of the invention, and not the scope to idea of the invention is any limitation as.The feelings of spirit and scope are not being departed from
Under condition, those skilled in the art becomes readily apparent that a variety of modifications and adaptation.
It should be understood that the illustrative embodiments being somebody's turn to do herein should be to be considered only as descriptive, and it is not limited to.Every
The class suitable for other exemplary embodiments should be generally considered to the description of feature or aspect in individual illustrative embodiments
Like feature or aspect.Although describing the present invention with reference to exemplary embodiment, those skilled in the art's progress can be advised
Various change and change.The invention is intended to cover these changes in the scope of the appended claims and change.
Claims (10)
1. a kind of earphone, it is characterised in that including：Two receivers, the receiver includes shell and is housed in the shell
Phonation unit；A call microphone is provided with wherein one receiver, a drop is provided with another receiver
Make an uproar microphone；
The call microphone and the noise reduction microphone are used to carry out up noise reduction and descending noise reduction to earphone.
2. earphone according to claim 1, it is characterised in that
The noise reduction microphone is handled the voice signal received, to eliminate the noise signal on the direction of human ear both sides,
And in head fore-and-aft direction formation collimated beam of sound.
3. earphone according to claim 1, it is characterised in that
The call microphone is handled the voice signal received, to eliminate the noise signal on the direction of human ear both sides,
And in head fore-and-aft direction formation collimated beam of sound.
4. earphone according to claim 1, it is characterised in that
The noise reduction microphone and the call microphone by active noise controlling method to the earphone specifically for being carried out
Descending noise reduction.
5. earphone according to claim 1, it is characterised in that
The noise reduction microphone and the call microphone are up specifically for being carried out by beam-forming method to the earphone
Noise reduction.
6. according to any described earphone of claim 1 to 5, it is characterised in that
The noise reduction microphone is ANC microphones；The call microphone is ANC microphones, Electret Condencer Microphone or electronic
Formula microphone.
7. a kind of noise-reduction method of earphone, it is characterised in that wherein earphone includes two receivers, the receiver include shell and
It is housed in the phonation unit in the shell；A call microphone is provided with wherein one receiver, is listened at another
A noise reduction microphone is provided with cylinder；Methods described includes：
Up noise reduction and descending noise reduction are carried out to the earphone by the call microphone and the noise reduction microphone.
8. the noise-reduction method of earphone according to claim 7, it is characterised in that
The voice signal received is handled by the noise reduction microphone, to eliminate the letter of the noise on the direction of human ear both sides
Number, and in head fore-and-aft direction formation collimated beam of sound.
9. the noise-reduction method of earphone according to claim 7, it is characterised in that
The noise reduction microphone and the call microphone by active noise controlling method to the earphone specifically for being carried out
Descending noise reduction.
10. according to the noise-reduction method of any described earphone of claim 7 to 9, it is characterised in that
The noise reduction microphone and the call microphone are up specifically for being carried out by beam-forming method to the earphone
Noise reduction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710174050.5A CN107018461A (en) | 2017-03-22 | 2017-03-22 | Earphone and its noise-reduction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710174050.5A CN107018461A (en) | 2017-03-22 | 2017-03-22 | Earphone and its noise-reduction method |
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| CN107018461A true CN107018461A (en) | 2017-08-04 |
Family
ID=59439882
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710174050.5A Pending CN107018461A (en) | 2017-03-22 | 2017-03-22 | Earphone and its noise-reduction method |
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| CN108419163A (en) * | 2017-12-21 | 2018-08-17 | 歌尔股份有限公司 | Earphone and for earphone uplink noise eliminate method |
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