CN106060694B - Digital earphone and its listen voice handling method - Google Patents
Digital earphone and its listen voice handling method Download PDFInfo
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- CN106060694B CN106060694B CN201610466201.XA CN201610466201A CN106060694B CN 106060694 B CN106060694 B CN 106060694B CN 201610466201 A CN201610466201 A CN 201610466201A CN 106060694 B CN106060694 B CN 106060694B
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- loudspeaker
- earphone
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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
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- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The present invention provides a kind of digital earphone and its listens voice handling method, and digital earphone therein includes decoding chip, data line, the earphone cable connecting with data line and the loudspeaker positioned at earphone thread end；With difference signal in decoding chip, difference signal is transmitted in loudspeaker after being superimposed with the voice signal that data line transmits；Wherein, difference signal is the difference of the preset standard curve of digital earphone and corresponding acoustical testing curve.It is capable of the consistency of exact figures word headphone acoustic parameter using foregoing invention, guarantees that audition is consistent.
Description
Technical field
The present invention relates to technical field of acoustics, more specifically, are related to a kind of digital earphone and its listen voice handling method.
Background technique
Digital earphone and common headphones include ear casing, wire rod and loudspeaker monomer/loudspeaker, in addition, digital earphone is also
Including the chip stored and processed for data, decoding chip and amplifier in digital earphone can convert digital signal
For can be by the analog signal of ear recognition, and amplify output to loudspeaker, brings more preferably audition experience for user.
But at present the parameters,acoustic of digital earphone can not accomplish it is completely the same, such as the frequency response of Fig. 1 digital earphone
It manages shown in range curve, by taking parameters,acoustic is frequency response as an example, the width model of the qualified general control of product in bound
In enclosing, i.e., parameter control is carried out to earphone in certain frequency range, does not ensure that all frequency response curves are consistent.By
Tolerance between the fluctuation of loudspeaker itself, digital earphone component adds up, the acoustic resistance between different screen cloths is not quite identical etc.
Many reasons, will lead to the parameter of digital earphone, there are fluctuation ranges.
Wherein, the horizontal axis in Fig. 1 indicates frequency (unit, Hz), and the longitudinal axis indicates frequency response (unit, dB), frequency response
The top of curve and two curves of bottom respectively indicate the limit value up and down of frequency response, and what it is more than this limit is not
Good product.It is found that frequency parameter, in 1kHz, frequency response general control is in the range of ± 3dB, and the response of high frequency is general
In the range of ± 7dB or so, the voice signal of digital earphone output is difficult to ensure unanimously for control.
Summary of the invention
In view of the above problems, the object of the present invention is to provide a kind of digital earphone and its voice handling method is listened, to solve mesh
Preceding digital earphone can only in a certain range manage its parameters,acoustic, and the asonia of earphone ensures that consistency etc. is asked
Topic.
According to an aspect of the present invention, a kind of digital earphone is provided, including decoding chip, data line and data line connect
The earphone cable connect and the loudspeaker positioned at earphone thread end；With difference signal, difference signal and data line in decoding chip
It is transmitted in loudspeaker after the voice signal superposition of transmission；Wherein, difference signal be the preset standard curve of digital earphone with it is corresponding
Acoustical testing curve difference.
Furthermore it is preferred that scheme be that the corresponding parameters,acoustic of standard curve includes frequency response, phase and distortion；Acoustics
Test curve is consistent with the parameters,acoustic of standard curve.
Furthermore it is preferred that scheme be, loudspeaker include the first loudspeaker and the second loudspeaker, the first loudspeaker and the second loudspeaker lead to respectively
It crosses corresponding first earphone cable and the second earphone cable is connect with decoding chip.
Furthermore it is preferred that scheme be the first difference signal corresponding with the first loudspeaker to be stored in decoding chip, with the
Corresponding second difference signal of two loudspeaker；The voice signal of data line transmission is transmitted to the first loudspeaker after being superimposed with the first difference signal
In, data line transmission voice signal be superimposed with the second difference signal after be transmitted in the second loudspeaker.
Furthermore it is preferred that scheme be, the first loudspeaker and the second loudspeaker output parameters,acoustic information it is consistent.
Furthermore it is preferred that scheme be that the interface connecting with terminal device is provided in the end of data line, interface is
MICRO-USB, TYPEA, TYPE-C, Lightning, Min-USB or USB2.0.
Furthermore it is preferred that scheme be that digital earphone includes headphone or In-Ear Headphones.
According to another aspect of the present invention, provide a kind of digital earphone listens voice handling method, wherein digital earphone is such as
On, listening voice handling method includes: the acoustical testing curve for obtaining digital earphone, and according to acoustical testing curve and preset standard
Curve acquisition difference signal；Difference signal is written in decoding chip, the signal that loudspeaker issue is the sound letter of data line transmission
Number with the superposition of difference signal corresponding in decoding chip.
Furthermore it is preferred that scheme be, obtain digital earphone acoustical testing curve during, by acoustical testing software
The voice signal of sending is successively transmitted to digital earphone to be tested, digital earphone to be tested after the processing of sound card and amplifier
According to the signal sounding received；Artificial ear receives the voice signal that digital earphone to be tested issues, and successively passes through amplifier
Acoustical testing software is back to sound card；According to acoustical testing software issue voice signal and passback voice signal obtain with
The corresponding acoustical testing curve of digital earphone to be tested.
Using above-mentioned digital earphone according to the present invention and its voice handling method is listened, by the acoustical testing for identifying trumpet end
Difference between curve and the standard curve of fixation, and the difference is written in decoding chip, in the use process of earphone, energy
The consistency for enough guaranteeing the parameters,acoustic between different earphones or the left and right ear of same earphone by difference, to guarantee earphone
Audition it is consistent.
To the accomplishment of the foregoing and related purposes, one or more aspects of the present invention include be particularly described below and
The feature particularly pointed out in claim.Certain illustrative aspects of the invention is described in detail in the following description and the annexed drawings.
However, these aspects indicate only usable some of the various ways in the principles of the present invention.In addition, of the invention
It is intended to include all such aspects and their equivalent.
Detailed description of the invention
By reference to the following description in conjunction with the accompanying drawings and the contents of the claims, and with to it is of the invention more comprehensively
Understand, other objects and results of the present invention will be more clearly understood and understood.In the accompanying drawings:
Fig. 1 is that range curve graph is managed in the frequency response of existing digital earphone.
Fig. 2 is the digital earphone structural schematic diagram according to the embodiment of the present invention；
Fig. 3 is to listen voice handling method flow chart according to the digital earphone of the embodiment of the present invention；
Fig. 4 is the acoustical testing curve acquisition block diagram according to the embodiment of the present invention.
Appended drawing reference therein includes: the first loudspeaker 11, the second loudspeaker 12, the first earphone cable 21, the second earphone cable 22,
One difference curve memory block 31, the second difference curve memory block 32, decoding chip 4, data line 5, interface 6.
Identical label indicates similar or corresponding feature or function in all the appended drawings.
Specific embodiment
In the following description, for purposes of illustration, it in order to provide the comprehensive understanding to one or more embodiments, explains
Many details are stated.It may be evident, however, that these embodiments can also be realized without these specific details.
In other examples, one or more embodiments for ease of description, well known structure and equipment are shown in block form an.
For the present invention is described in detail embodiment digital earphone and its listen voice handling method, below with reference to attached drawing to this hair
Bright specific embodiment is described in detail.
Fig. 2 shows the structures of digital earphone according to an embodiment of the present invention.
As shown in Fig. 2, the digital earphone of the embodiment of the present invention, including decoding chip 4, the data being connect with decoding chip 4
Line 5, the earphone cable being connect with data line 5 and the loudspeaker (or loudspeaker) positioned at earphone thread end；It is write in decoding chip 4
It is transmitted in loudspeaker after thering is difference signal, difference signal to be superimposed with the voice signal transmitted by data line 5；Wherein, difference is believed
Number for the preset standard curve of digital earphone (or and standard curve relevant parameters,acoustic data) and corresponding acoustical testing
The difference of curve (or parameters,acoustic data with acoustical testing curvilinear correlation).
Specifically, one end of data line 5 is provided with the interface 6 connecting with exterior terminal equipment, and the other end passes through decoding core
Piece 4 is connect with two earphone cables, and loudspeaker include the first loudspeaker 11 and the second loudspeaker 12 (or left horn and right horn), the first loudspeaker
11 and second loudspeaker 12 connect respectively by corresponding first earphone cable 21 and the second earphone cable 22 with decoding chip 4, solving
The first difference signal and the second difference signal (31 He of the first difference curve memory block in respective figure are stored in code chip 4
Second difference curve memory block 32), the voice signal transmitted through data line 5 from terminal device passes after being superimposed with the first difference signal
It transports in the first loudspeaker 11, the voice signal transmitted from terminal device is transmitted to the second loudspeaker 12 after being superimposed with the second difference signal
It is interior, so that it is guaranteed that the parameters,acoustic of the first loudspeaker 11 and the second loudspeaker 12 is consistent.
Wherein, in the acquisition process of the first difference signal, the voice signal that acoustical testing software issues successively is passed through
It is transmitted to digital earphone to be tested after the processing of sound card and amplifier, the first loudspeaker 11 of digital earphone to be tested are according to receiving
Signal sounding；Artificial ear receives the voice signal that the first loudspeaker 11 issue, and is successively back to sound by amplifier and sound card
Learn test software；According to acoustical testing software issue voice signal and be back to acoustical testing software voice signal obtain and
The corresponding acoustical testing curve of first loudspeaker 11；Then, acoustics corresponding with the first loudspeaker is subtracted according to preset standard curve
Test curve obtains the first difference signal.
Then, 4 corresponding first difference curve memory block 31 of decoding chip is written into the first difference signal, again carry out sound
When learning test, the signal of 11 end final output of the first loudspeaker be folding for the voice signal inputted from interface 6 and the first difference signal
Add, so that guarantee earphone final output is unified standard curve.
Similarly, in the acquisition process of the second difference signal, the voice signal that acoustical testing software issues successively is passed through
It is transmitted to digital earphone to be tested after the processing of sound card and amplifier, the second loudspeaker 12 of digital earphone to be tested are according to receiving
Signal sounding；Artificial ear receives the voice signal that the second loudspeaker 12 issue, and is successively back to sound by amplifier and sound card
Learn test software；According to acoustical testing software issue voice signal and be back to acoustical testing software voice signal obtain and
The corresponding acoustical testing curve of second loudspeaker 12；Then, acoustics corresponding with the second loudspeaker is subtracted according to preset standard curve
Test curve obtains the second difference signal.
Then, 4 corresponding second difference curve memory block 32 of decoding chip is written into the second difference signal, again carry out sound
When learning test, the signal of 12 end final output of the second loudspeaker be folding for the voice signal inputted from interface 6 and the second difference signal
Add, to guarantee that the audition of digital earphone is consistent.
In the specific embodiment of the present invention, standard curve can be required according to parameters,acoustic of the client to product
Or the market demand is adjusted, the corresponding parameters,acoustic of standard curve may include frequency response, phase and distortion etc., acoustics
The parameters,acoustic of test curve and standard curve is also consistent, in carrying out test or use process to digital earphone, digital ear
First loudspeaker 11 of machine and the parameters,acoustic information or parameters,acoustic curve of the second loudspeaker 12 are consistent, to bring for user
More outstanding audition experience.
In another embodiment of the present invention, the interface 6 of data line 5 can for MICRO-USB, TYPEA,
TYPE-C, Lightning, Min-USB or USB2.0 etc..
In the digital earphone of the embodiment of the present invention, obtains the preset standard curve of loudspeaker and subtract corresponding acoustical testing song
Line obtains corresponding difference signal, and stores it in decoding chip 4, and the signal terminal device for exporting digital earphone is defeated
The superposition of the voice signal sent and corresponding difference signal, it can be ensured that the consistency of the parameters,acoustic of earphone output, it is therein
Digital earphone can be the diversified forms such as headphone or In-Ear Headphones.
The present invention also provides a kind of voice handling method of listening of digital earphone, the specific structure of digital earphone is referred to above-mentioned
Description in relation to digital earphone device.Specifically, Fig. 3 shows the audition processing side of digital earphone according to an embodiment of the present invention
Method process.
As shown in figure 3, the digital earphone of the embodiment of the present invention listens voice handling method, comprising:
S310: the acoustical testing curve of digital earphone is obtained, and is obtained according to acoustical testing curve and preset standard curve
Take difference signal.
Wherein, the acoustical testing curve of digital earphone is one-to-one with the loudspeaker of digital earphone, to ensure digital ear
The consistency of machine, two loudspeaker respectively correspond two acoustical testing curves, and corresponding difference signal is not also identical.
S320: by difference signal be written decoding chip in, loudspeaker issue signal be data line transmission voice signal with
The superposition of corresponding difference signal in decoding chip.
Wherein, by the first difference signal/second difference signal write-in decoding chip corresponding first difference curve memory block/
Second difference curve memory block, when carrying out acoustical testing again, the first loudspeaker/second trumpet end final output signal is from connecing
The voice signal of mouth output is superimposed with the first difference signal/second difference signal, to guarantee the first loudspeaker and the second loudspeaker
The parameters,acoustic of output is standard curve.
Fig. 4 shows acoustical testing curve acquisition structure of block diagram according to an embodiment of the present invention.
As shown in figure 4, in step s310, the process for obtaining the acoustical testing curve of digital earphone includes: to survey acoustics
The voice signal that examination software issues successively is transmitted to digital earphone to be tested, number to be tested after the processing of sound card and amplifier
Word earphone is according to the signal sounding received；Artificial ear receives the voice signal that digital earphone to be tested issues, and successively passes through
Amplifier and sound card are back to acoustical testing software；According to the voice signal of acoustical testing software sending and it is back to acoustical testing
The voice signal of software obtains acoustical testing curve corresponding with digital earphone to be tested.
By above embodiment as can be seen that the digital earphone of the embodiment of the present invention and its listening voice handling method, utilize
The power of digital earphone decoding chip presets fixed standard curve, in the production process of earphone, is identified by test
Difference between the acoustical testing curve and standard curve of trumpet end, and the difference is written in decoding chip, loudspeaker are finally defeated
Signal out is voice signal and the superposition of corresponding difference signal of terminal device transmission, so that it is guaranteed that different earphones or together
The consistency of parameters,acoustic, guarantees that the audition of earphone is consistent between one earphone difference loudspeaker, provides better audition body for user
It tests.
It describes digital earphone according to the present invention in an illustrative manner above with reference to attached drawing and its listens voice handling method.But
It is, it will be appreciated by those skilled in the art that the digital earphone that is proposed for aforementioned present invention and its listening voice handling method, may be used also
To make various improvement on the basis of not departing from the content of present invention.Therefore, protection scope of the present invention should be by appended power
The content of sharp claim determines.
Claims (8)
1. a kind of digital earphone including decoding chip, data line, the earphone cable connecting with the data line and is located at the ear
The loudspeaker of machine thread end, the loudspeaker include the first loudspeaker and the second loudspeaker；It is characterized in that,
With difference signal in the decoding chip, after the difference signal is superimposed with the voice signal that the data line transmits
It is transmitted in the loudspeaker；Wherein,
The difference signal include and corresponding first difference signal of first loudspeaker, with second loudspeaker corresponding second
Difference signal；
The difference signal is the difference of the preset standard curve of the digital earphone and corresponding acoustical testing curve；
The corresponding parameters,acoustic of the standard curve includes frequency response, phase and distortion；
The acoustical testing curve is consistent with the parameters,acoustic of the standard curve.
2. digital earphone as described in claim 1, which is characterized in that
First loudspeaker and second loudspeaker pass through corresponding first earphone cable and the second earphone cable and the decoding respectively
Chip connection.
3. digital earphone as claimed in claim 2, which is characterized in that
The voice signal of the data line transmission is transmitted in first loudspeaker after being superimposed with first difference signal, described
The voice signal of data line transmission is transmitted in second loudspeaker after being superimposed with second difference signal.
4. digital earphone as claimed in claim 3, which is characterized in that
First loudspeaker and the parameters,acoustic information of second loudspeaker output are consistent.
5. digital earphone as described in claim 1, which is characterized in that
Be provided with the interface connecting with terminal device in the end of the data line, the interface be MICRO-USB, TYPEA,
TYPE-C, Lightning, Min-USB or USB2.0.
6. digital earphone as described in claim 1, which is characterized in that
The digital earphone includes headphone or In-Ear Headphones.
7. a kind of digital earphone listens voice handling method, wherein the digital earphone is as described in any one of claim 1 to 6, institute
It states and listens the voice handling method to include:
The acoustical testing curve of the digital earphone is obtained, and is obtained according to the acoustical testing curve and preset standard curve
Difference signal；
The difference signal is written in decoding chip, the signal that loudspeaker issue is the voice signal and the solution that data line transmits
The superposition of corresponding difference signal in code chip.
8. digital earphone as claimed in claim 7 listens voice handling method, which is characterized in that obtaining the digital earphone
During acoustical testing curve,
The voice signal that acoustical testing software issues successively is transmitted to number to be tested after the processing of sound card and amplifier
Earphone, the digital earphone to be tested is according to the signal sounding received；
Artificial ear receives the voice signal that the digital earphone to be tested issues, and is successively back to institute by amplifier and sound card
State acoustical testing software；
The voice signal of the voice signal and passback that are issued according to the acoustical testing software obtains and the digital ear to be tested
The corresponding acoustical testing curve of machine.
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107371115A (en) * | 2017-07-18 | 2017-11-21 | Tcl移动通信科技（宁波）有限公司 | A kind of detection method, storage medium and the terminal of complete machine loudspeaker performance |
| CN107920322B (en) * | 2017-12-05 | 2020-11-20 | 歌尔股份有限公司 | Noise reduction earphone testing method, noise reduction earphone testing system and computer readable storage medium |
| CN108966084A (en) * | 2018-08-09 | 2018-12-07 | 歌尔科技有限公司 | A kind of loudspeaking equipment and its calibration method, device, equipment |
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| CN1842223A (en) * | 2005-03-29 | 2006-10-04 | 索尼株式会社 | Audio signal amplifying apparatus and distortion correcting method |
| CN1928807A (en) * | 2005-09-05 | 2007-03-14 | 鸿富锦精密工业（深圳）有限公司 | Sound output system and method |
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| US8218784B2 (en) * | 2007-01-09 | 2012-07-10 | Tension Labs, Inc. | Digital audio processor device and method |
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| CN1842223A (en) * | 2005-03-29 | 2006-10-04 | 索尼株式会社 | Audio signal amplifying apparatus and distortion correcting method |
| CN1928807A (en) * | 2005-09-05 | 2007-03-14 | 鸿富锦精密工业（深圳）有限公司 | Sound output system and method |
| CN102104822A (en) * | 2009-12-18 | 2011-06-22 | 新唐科技股份有限公司 | Audio frequency adjusting system and method |
| CN102892069A (en) * | 2012-09-10 | 2013-01-23 | 清华大学 | Stimulus frequency otoacoustic emission tuning curve detection and calibration system |
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