CN106211012A - The measurement of a kind of earphone time-frequency response and correction system and method - Google Patents
The measurement of a kind of earphone time-frequency response and correction system and method Download PDFInfo
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- CN106211012A CN106211012A CN201610557869.5A CN201610557869A CN106211012A CN 106211012 A CN106211012 A CN 106211012A CN 201610557869 A CN201610557869 A CN 201610557869A CN 106211012 A CN106211012 A CN 106211012A
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- 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
- H04R29/00—Monitoring arrangements; Testing arrangements
- H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
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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
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
Abstract
The invention discloses measurement and the correction system and method for a kind of earphone time-frequency response, system includes measurement apparatus and correcting unit, the computing unit A(2 of the first audio-frequency playing terminal) read the audio files A(1 in storage unit A), amplifier A(3 is given after output) it is amplified, amplifier A(3) outfan connect earphone to be detected (4,5) (1) by audio interface；Acoustical signal is converted into after the signal of telecommunication by amplifier B(7 by acoustoelectric sensor (17) (5)) send to computing unit B(8), computing unit B(8) signal is processed after generate the correction file (9) of earphone；Second audio-frequency playing terminal use described correction file (9) to audio files B(10) audio files stream process, export afterwards.The nonlinear effect of earphone is accurately measured by the present invention, record, measures the true distortion parameter of earphone, the time-frequency response of correction earphone, thus reaches the effect making cheap earphone release expensive earphone.
Description
Technical field
The present invention relates to measurement and the correction system and method for a kind of earphone time-frequency response.
Background technology
The function of earphone is that the signal of telecommunication is become mechanical wave.The time-frequency response distortion of earphone, mainly by the electroacoustic of earphone
Nonlinear effect in transition process causes.
Existing music technology, earphone portion audio distortion is serious.A fidelity earphone of multiple kind is had: base on market
This type, moderate type, fidelity type, high-fidelity type, the earphone distortion level difference of each class is huge, price also difference is huge.
Therefore, for prior art, need a kind of by the nonlinear effect of earphone is accurately measured, record, correct
The method of the time-frequency response distortion of earphone, makes cheap earphone release the effect of expensive earphone.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that the measurement of a kind of earphone time-frequency response and correction system
System and method thereof.
It is an object of the invention to be achieved through the following technical solutions: the measurement of a kind of earphone time-frequency response and correction system
System, it include measurement apparatus and correcting unit, described measurement apparatus include the first audio-frequency playing terminal, earphone to be detected (4,
5), high manual imitation auditory meatus and computing terminal, be provided with acoustoelectric sensor at the ear drum membrane of described high manual imitation auditory meatus, described
Computing terminal includes amplifier B and computing unit B；The first described audio-frequency playing terminal includes storage unit A, computing unit A
Read the audio files A in storage unit A with amplifier A, described computing unit A, give amplifier A after output and put
Greatly, the outfan of amplifier A connects earphone to be detected by audio interface, and earphone to be detected is arranged at high manual imitation auditory meatus；Sound
Electric transducer receives from the acoustical signal of earphone to be detected, and is sent out by amplifier B after acoustical signal is converted into the signal of telecommunication
Deliver to computing unit B, described computing unit B and after signal is processed, generate the correction file of earphone；
Described correcting unit includes the second audio-frequency playing terminal and the earphone to be used with earphone same model to be detected, described
Second audio-frequency playing terminal includes that memory element B, computing unit C and amplifier C, described computing unit C read memory element B
Audio files B, use described correction file the audio files stream of audio files B to be processed, the most successively through putting simultaneously
Big device C, audio interface and earphone to be used export.
Described high manual imitation auditory meatus and acoustoelectric sensor are arranged at number of people mould.
Described system also includes a storage server, and described storage server is special with model for difference for storage
The correction file levied；Correcting unit before the use, by network download specific model earphone to be used correction file after
It is corrected.
Described audio-frequency playing terminal is intelligent mobile terminal or PC；Described computing terminal is intelligent mobile terminal
Or PC.
The first described audio-frequency playing terminal and the second audio-frequency playing terminal are same terminal or different terminals；Described
First audio-frequency playing terminal and computing terminal are same terminal or different terminals.
Described high manual imitation auditory meatus is additionally provided with temperature sensor and heating element heater, the outfan of temperature sensor and meter
Calculation cells D connects, and the temperature signal control output end of computing unit D is connected with heating element heater.
Described high manual imitation auditory meatus is additionally provided with temperature sensor and humidity sensor, described temperature sensor and wet
The outfan of degree sensor is all connected with computing unit B, reference real time temperature and humidity when computing unit B calculates correction file.
Described earphone to be detected is dual-channel headphone, including the first earphone heads and the second earphone heads；Described high apery
Work auditory meatus has two, is respectively arranged with the first acoustoelectric sensor and rising tone fax sense at the ear drum membrane of two high manual imitation auditory meatus
Device, the outfan of the first acoustoelectric sensor and rising tone electric transducer is all connected with computing terminal.
The measurement of a kind of earphone time-frequency response and bearing calibration, comprise the following steps:
S1: audio files A to be played is play by computing unit A, the output of computing unit A is given amplifier A and is amplified, send afterwards
To earphone to be detected, telecommunications is become sound wave；It is arranged at the acoustoelectric sensor at the ear drum membrane of high manual imitation auditory meatus to measure really
The time-frequency response of earphone to be detected, amplifier B is given in its output；Computing unit B process is given in the output of amplifier B, meter
Calculate unit B and export the correction file of earphone to be detected；
S2: computing unit C play audio files B time, use correction file to the audio files stream of audio files B at
Reason, amplified device C exports, gives and the earphone to be used of earphone same model to be detected, and earphone to be used exports.
Step S2 also includes a download step, and before computing unit C plays audio files B, user passes through the Internet
Download correct application APP or correction file.
The invention has the beneficial effects as follows:
(1) present invention nonlinear effect of earphone is accurately measured, record, measure the true distortion parameter of earphone, correction
The time-frequency response of earphone, thus reach the effect making cheap earphone release expensive earphone.
(2) present invention is for measuring the response of earphone time-frequency, by arranging number of people mould and high manual imitation auditory meatus, and
And acoustoelectric sensor is set at the ear drum membrane of high manual imitation auditory meatus, the ear imitating human body receives the effect of earphone, and by sound
The data that electric transducer gathers send to outside computing terminal.
(3) present invention generates precision to improve correction file, temperature and humidity parameter is carried out reference: include temperature
Parameter is controlled, it is ensured that temperature is identical with the true temperature of human body ear, improves the precision measured；Or measure warm and humid in real time
Degree, with reference to this parameter in trimming process.
Accompanying drawing explanation
Fig. 1 is that measurement apparatus circuit of the present invention connects block diagram；
Fig. 2 is that correcting unit circuit of the present invention connects block diagram；
Fig. 3 is that the present inventor's head mould has schematic diagram；
Fig. 4 is high manual imitation auditory meatus structure and acoustoelectric sensor installation site schematic diagram；
Fig. 5 is the inventive method flow chart；
In figure, 1-audio files A, 2-computing unit A, 3-amplifier A, 4-earphone to be detected, 5-earphone to be detected, 6-people's head mould
Tool, 7-amplifier B, 8-computing unit B, 9-correction file, 10-audio files B, 11-computing unit C, 12-amplifier C, 13-
Earphone to be used, 14-earphone to be used, 15-height manual imitation auditory meatus, 16-height manual imitation auditory meatus mouth, 17-acoustoelectric sensor.
Detailed description of the invention
Technical scheme is described in further detail below in conjunction with the accompanying drawings:
As it is shown in figure 1, the measurement of a kind of earphone time-frequency response and correction system, it includes measurement apparatus and correcting unit, described
Measurement apparatus include the first audio-frequency playing terminal, earphone to be detected 4,5, high manual imitation auditory meatus 15 and computing terminal, described
Being provided with acoustoelectric sensor 17 at the ear drum membrane of high manual imitation auditory meatus 15, described computing terminal includes amplifier B7 and calculates single
Unit B8；The first described audio-frequency playing terminal includes storage unit A, computing unit A2 and amplifier A3, described computing unit
A2 reads the audio files A1 in storage unit A, gives amplifier A3 and be amplified after output, and the outfan of amplifier A3 passes through
Audio interface connects earphone 4,5 to be detected, and earphone 4,5 to be detected is arranged at high manual imitation auditory meatus 16；Acoustoelectric sensor 17 receives
From the acoustical signal of earphone 4,5 to be detected, and acoustical signal is converted into after the signal of telecommunication and is sent to calculating by amplifier B7
Unit B 8, described computing unit B8 generates the correction file 9 of earphone after processing signal；
As in figure 2 it is shown, described correcting unit include the second audio-frequency playing terminal and with earphone 4,5 same model to be detected wait make
With earphone 13,14, the second described audio-frequency playing terminal includes memory element B, computing unit C11 and amplifier C12, described
Computing unit C11 reads the audio files B10 of memory element B, uses the described correction file 9 sound to audio files B10 simultaneously
Source file stream processes, and the most amplified device C12, audio interface and earphone to be used 13,14 export.
Described high manual imitation auditory meatus 15 and acoustoelectric sensor 17 are arranged at number of people mould 6.Number of people mould 6 senses with acoustic-electric
A kind of profile of device 17 is as it is shown on figure 3, during actual fabrication, it is ensured that the auditory meatus tool of the auditory meatus height manual imitation auditory meatus 15 of model and the mankind
Having maximized true comparability, profile can be varied.It is to say, high manual imitation auditory meatus 15 makes according to human ear,
As shown in Figure 4.Time actually used, can there is the artificial auditory meatus of multiple correspondence according to the sex of certain user, height, body weight etc..
Acoustoelectric sensor 17 position is set as it is shown on figure 3, acoustoelectric sensor 17 is arranged in the position of ear drum membrane.Two
Acoustoelectric sensor 17 picks up the sound entering auditory meatus respectively, is respectively converted into the signal of telecommunication, output.
Described system also includes a storage server, and described storage server is special with model for difference for storage
The correction file 9 levied；Correcting unit before the use, downloads the correction of the earphone to be used 13,14 of specific model by network
It is corrected after file 9.
The present invention can be a closed loop system, measurement is completed together with high-fidelity.
The present invention can also be an open cycle system, and measurement is set of system, obtains the distortion parameter of some earphone.It
Afterwards by Internet or alternate manner, this distortion parameter is combined with playback system, for high-fidelity playback.High
Fidelity playback system can be another system.
Corresponding, during batch production, each earphone is numbered with different serial numbers, a corresponding correction file 9 of earphone,
Correction file 9 is sold together with this earphone.
Or, during batch production, each earphone is numbered with different serial numbers, a corresponding correction file 9 of earphone, school
Positive file 9 is not sold together with this earphone, and user is downloaded by Internet.
Described audio-frequency playing terminal is intelligent mobile terminal or PC；Described computing terminal is intelligent mobile terminal
Or PC.
The first described audio-frequency playing terminal and the second audio-frequency playing terminal are same terminal or different terminals；Described
First audio-frequency playing terminal and computing terminal are same terminal or different terminals.
During earphone is measured, for improving the precision that correction file 9 generates, temperature and humidity parameter is joined
Examine, especially by following two mode:
1, temperature parameter is controlled, it is ensured that temperature is identical with the true temperature of human body ear, improves the precision measured, specifically
Mode is as follows: described high manual imitation auditory meatus 15 is additionally provided with temperature sensor and heating element heater, the outfan of temperature sensor
Being connected with computing unit D, the temperature signal control output end of computing unit D is connected with heating element heater.Temperature sensor is examined in real time
Surveying high manual imitation auditory meatus 15 internal temperature, when temperature is reduced to the first scope, computing unit D controls heating element heater and adds
Heat, until stopping during the second scope.
2, humiture is measured in real time, with reference to this parameter in trimming process: described high manual imitation auditory meatus 15 is additionally provided with
Temperature sensor and humidity sensor, described temperature sensor and the outfan of humidity sensor are all with computing unit B8 even
Connect, reference real time temperature and humidity when computing unit B8 calculates correction file 9.
Described earphone to be detected 4,5 is dual-channel headphone, including the first earphone heads and the second earphone heads；Described Gao Fang
Artificial auditory meatus 15 has two, is respectively arranged with the first acoustoelectric sensor 17 and second at the ear drum membrane of two high manual imitation auditory meatus 15
Acoustoelectric sensor 17, the outfan of the first acoustoelectric sensor 17 and rising tone electric transducer 17 is all connected with computing terminal.
The measurement of a kind of earphone time-frequency response and bearing calibration, comprise the following steps:
S1: audio files A1 to be played is play by computing unit A2, the output of computing unit A2 give amplifier A3 amplify, it
After give 4,5 telecommunications of earphone to be detected and become sound wave；It is arranged at the acoustoelectric sensor at the ear drum membrane of high manual imitation auditory meatus 15
The 17 time-frequency responses measuring earphone 4,5 to be detected really, amplifier B7 is given in its output；Calculating is given in the output of amplifier B7
Unit B 8 processes, and computing unit B8 exports the correction file 9 of earphone 4,5 to be detected；
S2: computing unit C11 when playing audio files B10, uses the correction file 9 audio files stream to audio files B10
Processing, amplified device C12 exports, and gives and the earphone to be used 13,14 of earphone 4,5 same model to be detected, to be used
Earphone 13, the output of 14.
Step S2 also includes a download step, and before computing unit C11 plays audio files B10, user is by mutually
Correct application APP or correction file 9 are downloaded in networking.
Claims (10)
1. the measurement of an earphone time-frequency response and correction system, it is characterised in that: it includes measurement apparatus and correcting unit, institute
The measurement apparatus stated includes the first audio-frequency playing terminal, earphone to be detected (4,5), high manual imitation auditory meatus (15) and computing terminal,
Being provided with acoustoelectric sensor (17) at the ear drum membrane of described high manual imitation auditory meatus (15), described computing terminal includes amplifier
B(7) and computing unit B(8)；The first described audio-frequency playing terminal includes storage unit A, computing unit A(2) and amplifier A
(3), described computing unit A(2) read the audio files A(1 in storage unit A), give amplifier A(3 after output) carry out
Amplify, amplifier A(3) outfan connect earphone to be detected (4,5) by audio interface, earphone to be detected (4,5) is arranged at
High manual imitation auditory meatus (16)；Acoustoelectric sensor (17) receives the acoustical signal from earphone to be detected (4,5), and by acoustical signal
Be converted into after the signal of telecommunication by amplifier B(7) send to computing unit B(8), described computing unit B(8) to signal at
The correction file (9) of earphone is generated after reason；
Described correcting unit includes the second audio-frequency playing terminal and the earphone to be used with earphone to be detected (4,5) same model
(13,14), the second described audio-frequency playing terminal includes memory element B, computing unit C(11) and amplifier C(12), described
Computing unit C(11) read memory element B audio files B(10), use described correction file (9) to audio files B simultaneously
(10) audio files stream processes, the most amplified device C(12), audio interface and earphone to be used (13,14) enter
Row output.
The measurement of a kind of earphone time-frequency the most according to claim 1 response and correction system, it is characterised in that: described height
Manual imitation auditory meatus (15) and acoustoelectric sensor (17) are arranged at number of people mould (6).
The measurement of a kind of earphone time-frequency the most according to claim 1 response and correction system, it is characterised in that: described is
System also includes a storage server, and described storage server is for storing the correction file (9) with model as distinguishing characteristics；
Correcting unit before the use, is carried out after the correction file (9) of the earphone to be used (13,14) being downloaded specific model by network
Correction.
The measurement of a kind of earphone time-frequency the most according to claim 1 response and correction system, it is characterised in that: described sound
Frequently playback terminal is intelligent mobile terminal or PC；Described computing terminal is intelligent mobile terminal or PC.
5. the measurement responded according to a kind of earphone time-frequency described in claim 1 or 4 and correction system, it is characterised in that: described
The first audio-frequency playing terminal and the second audio-frequency playing terminal be same terminal or different terminals；The first described audio frequency is play
Terminal and computing terminal are same terminal or different terminals.
The measurement of a kind of earphone time-frequency the most according to claim 1 response and correction system, it is characterised in that: described height
Manual imitation auditory meatus (15) is additionally provided with temperature sensor and heating element heater, and the outfan of temperature sensor is connected with computing unit D,
The temperature signal control output end of computing unit D is connected with heating element heater.
The measurement of a kind of earphone time-frequency the most according to claim 1 response and correction system, it is characterised in that: described height
Manual imitation auditory meatus (15) is additionally provided with the defeated of temperature sensor and humidity sensor, described temperature sensor and humidity sensor
Go out end all with computing unit B(8) be connected, computing unit B(8) and calculating correction file (9) time reference real time temperature and humidity.
The measurement of a kind of earphone time-frequency the most according to claim 1 response and correction system, it is characterised in that: described treats
Test earphone (4,5) is dual-channel headphone, including the first earphone heads and the second earphone heads；Described high manual imitation auditory meatus (15) has
Two, at the ear drum membrane of two high manual imitation auditory meatus (15), it is respectively arranged with the first acoustoelectric sensor (17) and rising tone fax sense
Device (17), the outfan of the first acoustoelectric sensor (17) and rising tone electric transducer (17) is all connected with computing terminal.
9. the measurement of earphone time-frequency response and bearing calibration, it is characterised in that: comprise the following steps:
By computing unit A(2 S1: audio files A(1 to be played)) play, computing unit A(2) output give amplifier A
(3) amplify, give earphone to be detected (4,5) afterwards and telecommunications is become sound wave；It is arranged at the ear drum membrane of high manual imitation auditory meatus (15)
The acoustoelectric sensor (17) at place measures the time-frequency response of earphone to be detected (4,5) really, and amplifier B(7 is given in its output)；Put
Big device B(7) output give computing unit B(8) process, computing unit B(8) export the correction of earphone to be detected (4,5)
File (9)；
S2: computing unit C(11) play audio files B(10) time, use correction file (9) to audio files B(10) sound
Source file stream processes, amplified device C(12) output, give and the earphone to be used of earphone to be detected (4,5) same model
(13,14), the output of earphone to be used (13,14).
The measurement of a kind of earphone time-frequency the most according to claim 9 response and correction system, it is characterised in that: step S2
Also include a download step, at computing unit C(11) play audio files B(10) before, user passes through the Internet download school
Just applying APP or correction file (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610557869.5A CN106211012B (en) | 2016-07-15 | 2016-07-15 | A kind of measurement and correction system and method for the response of earphone time-frequency |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610557869.5A CN106211012B (en) | 2016-07-15 | 2016-07-15 | A kind of measurement and correction system and method for the response of earphone time-frequency |
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| Publication Number | Publication Date |
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| CN106211012A true CN106211012A (en) | 2016-12-07 |
| CN106211012B CN106211012B (en) | 2019-11-29 |
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| CN201610557869.5A Active CN106211012B (en) | 2016-07-15 | 2016-07-15 | A kind of measurement and correction system and method for the response of earphone time-frequency |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108551648A (en) * | 2018-03-30 | 2018-09-18 | 广东欧珀移动通信有限公司 | Quality determining method and device, readable storage medium storing program for executing, terminal |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101208742A (en) * | 2005-05-18 | 2008-06-25 | 伯斯有限公司 | Adapted audio response |
| CN102104815A (en) * | 2009-12-18 | 2011-06-22 | 富港电子（东莞）有限公司 | Automatic volume adjusting earphone and earphone volume adjusting method |
| CN102761643A (en) * | 2011-04-26 | 2012-10-31 | 鹦鹉股份有限公司 | Audio headset integrated with microphone and headphone |
| CN104469651A (en) * | 2014-12-08 | 2015-03-25 | 惠州市联韵电子科技有限公司 | General artificial ear test device |
| WO2016032523A1 (en) * | 2014-08-29 | 2016-03-03 | Harman International Industries, Inc. | Auto-calibrating noise canceling headphone |
| CN105657630A (en) * | 2014-12-01 | 2016-06-08 | 富港电子（东莞）有限公司 | Earphone test device |
-
2016
- 2016-07-15 CN CN201610557869.5A patent/CN106211012B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101208742A (en) * | 2005-05-18 | 2008-06-25 | 伯斯有限公司 | Adapted audio response |
| CN102104815A (en) * | 2009-12-18 | 2011-06-22 | 富港电子（东莞）有限公司 | Automatic volume adjusting earphone and earphone volume adjusting method |
| CN102761643A (en) * | 2011-04-26 | 2012-10-31 | 鹦鹉股份有限公司 | Audio headset integrated with microphone and headphone |
| WO2016032523A1 (en) * | 2014-08-29 | 2016-03-03 | Harman International Industries, Inc. | Auto-calibrating noise canceling headphone |
| CN105657630A (en) * | 2014-12-01 | 2016-06-08 | 富港电子（东莞）有限公司 | Earphone test device |
| CN104469651A (en) * | 2014-12-08 | 2015-03-25 | 惠州市联韵电子科技有限公司 | General artificial ear test device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108551648A (en) * | 2018-03-30 | 2018-09-18 | 广东欧珀移动通信有限公司 | Quality determining method and device, readable storage medium storing program for executing, terminal |
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| CN106211012B (en) | 2019-11-29 |
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