CN112312296B - ANC earphone acoustic test system - Google Patents
ANC earphone acoustic test system Download PDFInfo
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- CN112312296B CN112312296B CN202010934112.XA CN202010934112A CN112312296B CN 112312296 B CN112312296 B CN 112312296B CN 202010934112 A CN202010934112 A CN 202010934112A CN 112312296 B CN112312296 B CN 112312296B
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- test
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- resonance damping
- flat pressing
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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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
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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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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Headphones And Earphones (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention relates to the technical field of earphone acoustic structures, in particular to an ANC earphone acoustic test system which comprises an audio system, a test sound card, a test microphone, a converter and a console, wherein the audio system comprises a test loudspeaker, the test loudspeaker comprises a simulation front shell and a simulation rear shell, the simulation front shell is provided with a front cavity, the simulation front shell is also provided with a middle cavity, a pore channel and a leakage hole, a test space used for containing a tested resonance damping horn box is arranged in the middle cavity, the inner wall of the middle cavity is provided with a mounting hole position, one end of the leakage hole is communicated with the front cavity, the mounting hole position is provided with an elastic flat pressing pipe body used for supporting and being communicated with the interior of the resonance damping horn box, and one end of the flat pressing pipe body is inserted into the mounting hole position. The ANC earphone acoustic testing system can be used for testing a resonance damping horn box with a special structure, is easy to install and replace the resonance damping horn box to be tested, and simulates the actual earphone assembly environment of a horn.
Description
Technical Field
The invention relates to the technical field of earphone acoustic structures, in particular to an ANC earphone acoustic testing system.
Background
The acoustic structure of the active noise reduction earphone seriously affects the comprehensive performance of the earphone and can enter the market by various testing parties.
A2NC2.0 is representative of a new generation of headset technology, but it still has a number of technical problems to be solved. The production uniformity requirement of the noise reduction earphone is very high, whether the uniformity of leakage when a real person wears can be guaranteed or not in consideration of the design of the earphone, the common method in design is the leakage resistance of an increased front cavity, but the frequency response range can be reduced in such a way, the sensitivity of the earphone is reduced, for solving the problem, the design of a resonance damping horn box is proposed by people, in the horn installation box, the problem is solved by selecting materials and designing the structure of the resonance damping horn box, but a system for performing simulation test on the acoustic performance of the resonance damping horn box cannot be provided in the prior art.
Disclosure of Invention
The invention aims to provide an ANC earphone acoustic testing system aiming at the defects of the prior art, which can perform simulation test on the acoustic performance of a resonance damping horn box.
In order to achieve the above object, the ANC earphone acoustic testing system of the present invention comprises an audio system, a testing sound card connected to the audio system, a testing microphone connected to the testing sound card and collecting testing sound signals, a converter connected to the testing sound card, and a console connected to the converter and outputting control signals and receiving testing sound signals, wherein the audio system comprises a testing speaker, the testing speaker comprises a front simulation shell and a rear simulation shell, the front simulation shell is fastened to the rear simulation shell, the front simulation shell is provided with a front cavity, the front simulation shell is further provided with a middle cavity, a duct, and a leakage hole, a testing space for accommodating a tested resonance damping speaker box is arranged in the middle cavity, an installation hole site is arranged on the inner wall of the middle cavity, one end of the leakage hole is communicated with the front cavity, the other end of the leakage hole is communicated with the outside, one end of the duct is communicated with the waist of the leakage hole, the other end of the pore passage is communicated with a mounting hole position, the mounting hole position is provided with an elastic flat pressing pipe body which is used for supporting and is communicated with the interior of the resonance damping horn box, and one end of the flat pressing pipe body is inserted into the mounting hole position.
Furthermore, the flat pressing pipe bodies are three, and the resonance damping horn boxes to be tested are connected with the simulation front shell in a suspension mode through the three flat pressing pipe bodies.
Furthermore, the elastic modulus of the flat pressing pipe body is 0.1-0.5 GPa.
Furthermore, the middle part of the pore canal is provided with a communicated right-angle section and an arc section, and the radius of the arc section is more than 8 mm; the waist of the leakage hole is communicated with the right-angle section, and the arc section is communicated with the mounting hole position.
Further, the test sound card is a four-channel test sound card.
Further, the test sound card is 24bit wide.
The invention has the beneficial effects that: the ANC earphone acoustic testing system can be used for testing a resonance damping horn box with a special structure, the elastic flat pressing pipe body can be elastically bent and deformed, and the resonance damping horn box to be tested is easy to install and replace; the leakage hole can be communicated with the interior of the resonance damping horn box through the pore passage and the pressure equalizing pipe body, so that the resistance of the sound film of the horn in the resonance damping horn box is small when the sound film vibrates, and the actual earphone assembly environment of the horn is simulated.
Drawings
Fig. 1 is a schematic view of the connection structure of the present invention.
Fig. 2 is a schematic cross-sectional structure diagram of an audio system of the present invention.
FIG. 3 shows the resonance damping horn box 6 to be tested
The reference numerals include:
01-audio system 02-test sound card 03-test microphone
04-converter 05-control console
11-simulated front shell 12-simulated rear shell
21-front chamber 22-test space
3-leakage hole
4-pore canal 41-right angle section 42-circular arc section
5-flat pressing pipe body
6-resonance damping horn box.
Detailed Description
The present invention is described in detail below with reference to the attached drawings.
As shown in fig. 1, 2 and 3, the ANC earphone acoustic testing system of the present invention includes an audio system 01, a testing sound card 02 connected to the audio system 01, a testing microphone 03 connected to the testing sound card 02 and collecting testing sound signals, a converter 04 connected to the testing sound card 02, and a console 05 connected to the converter 04 and outputting control signals and receiving testing sound signals, where the audio system 01 includes a testing speaker, the testing speaker includes a front simulation shell 11 and a rear simulation shell 12, the front simulation shell 11 is fastened to the rear simulation shell 12, the front simulation shell 11 is provided with a front cavity 21, the front simulation shell 11 is further provided with a middle cavity, a duct 4 and a leakage hole 3, a testing space 22 for accommodating a tested resonance damping speaker box 6 is provided in the middle cavity, an installation hole is provided on an inner wall of the middle cavity, one end of the leakage hole 3 is connected to the front cavity 21, the other end of the leakage hole 3 is communicated with the outside, one end of the pore 4 is communicated with the waist of the leakage hole 3, the other end of the pore 4 is communicated with the installation hole position, the installation hole position is provided with an elastic flat pressing pipe body 5 which is used for supporting and is communicated with the inside of the resonant damping horn box 6, and one end of the flat pressing pipe body 5 is inserted into the installation hole position. According to the ANC earphone acoustic testing system, the simulation front shell 11 and the simulation rear shell 12 simulate the actual use environment of the tested resonance damping horn box 6 and can be used for testing the resonance damping horn box 6 with a special structure, the elastic flat pressing pipe body 5 can be elastically bent and deformed, and the tested resonance damping horn box 6 is easy to install and replace; the leakage hole 3 can be communicated with the interior of the resonance damping horn box 6 through the pore passage 4 and the flat pressing pipe body 5, so that the air pressure in the front cavity 21 and the interior of the resonance damping horn box 6 tends to be balanced, the resistance of the acoustic membrane of the horn in the interior of the resonance damping horn box 6 is small when the horn vibrates, and the actual earphone assembly environment of the simulated horn is realized.
Further, the flat pressing pipe bodies 5 are three, and the tested resonance damping horn boxes 6 are in suspension installation connection with the simulation front shell 11 through the three flat pressing pipe bodies 5. According to the ANC earphone acoustic testing system, the resonance damping horn box 6 to be tested is in suspension installation connection with the simulation front shell 11 through the three flat pressing pipe bodies 5, so that the interference of the simulation front shell 11 on the resonance of the resonance damping horn box 6 to be tested in a sound wave environment can be reduced, and the accuracy of performance measurement of the resonance damping horn box 6 is improved.
Furthermore, the elastic modulus of the flat pressing pipe body 5 is 0.1-0.5 GPa. The flat pressing pipe body 5 can further reduce the interference of the simulation front shell 11 on the resonance of the tested resonance damping horn box 6 in the sound wave environment, and further improve the accuracy of the performance measurement of the resonance damping horn box 6.
Specifically, the middle part of the pore passage 4 is provided with a right angle section 41 and an arc section 42 which are communicated, and the radius of the arc section 42 is larger than 8 mm; the waist of the leakage hole 3 is communicated with the right-angle section 41, and the circular arc section 42 is communicated with the mounting hole. According to the ANC earphone acoustic testing system, the duct 4 is arranged on the wall of the simulation front shell 11, and the actual assembly and use environment of the resonance damping horn box 6 is simulated.
Specifically, the test sound card 02 is a four-channel test sound card 02. The ANC earphone acoustic test system can simultaneously test the stereo performance of the loudspeakers in the two resonance damping loudspeaker boxes 6.
Specifically, according to the ANC earphone acoustic testing system, the testing sound card 02 is 24-bit wide, and the signal-to-noise ratio and the sensitivity meet the noise reduction testing requirements.
In conclusion, the present invention has the above-mentioned excellent characteristics, so that it can be used to enhance the performance of the prior art and has practicability, and becomes a product with practical value.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (4)
1. An ANC earphone acoustics test system, includes audio system, with the test sound card that audio system links to each other, with the test microphone that the test sound card links to each other, gathers the test sound signal, with the converter that the test sound card is connected, and with the converter is connected, output control signal and receive the control cabinet of test sound signal, its characterized in that: the audio system comprises a test loudspeaker, the test loudspeaker comprises a simulation front shell and a simulation rear shell, the simulation front shell is buckled with the simulation rear shell, the simulation front shell is provided with a front cavity, the simulation front shell is also provided with a middle cavity, a pore channel and a leakage hole, a test space for accommodating a tested resonance damping horn box is arranged in the middle cavity, the inner wall of the middle cavity is provided with an installation hole site, one end of the leakage hole is communicated with the front cavity, the other end of the leakage hole is communicated with the outside, one end of the pore channel is communicated with the waist of the leakage hole, the other end of the pore channel is communicated with the installation hole site, the installation hole site is provided with an elastic flat pressing pipe body which is used for supporting and is communicated with the inside of the resonance damping horn box, and one end of the flat pressing pipe body is inserted into the installation hole site; the three flat pressing pipe bodies are arranged, and the resonance damping horn box to be tested is connected with the simulation front shell in a suspension mode through the three flat pressing pipe bodies; the elastic modulus of the flat pressing pipe body is 0.1-0.5 GPa.
2. The ANC earpiece acoustic testing system of claim 1, wherein: the middle part of the pore canal is provided with a communicated right-angle section and an arc section, and the radius of the arc section is more than 8 mm; the waist of the leakage hole is communicated with the right-angle section, and the arc section is communicated with the mounting hole position.
3. The ANC earpiece acoustic testing system of claim 1, wherein: the test sound card is a four-channel test sound card.
4. The ANC earpiece acoustic testing system of claim 1, wherein: the test sound card is 24bit wide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010934112.XA CN112312296B (en) | 2020-09-08 | 2020-09-08 | ANC earphone acoustic test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010934112.XA CN112312296B (en) | 2020-09-08 | 2020-09-08 | ANC earphone acoustic test system |
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| Publication Number | Publication Date |
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| CN112312296A CN112312296A (en) | 2021-02-02 |
| CN112312296B true CN112312296B (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010934112.XA Active CN112312296B (en) | 2020-09-08 | 2020-09-08 | ANC earphone acoustic test system |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112752187A (en) * | 2021-02-03 | 2021-05-04 | 深圳市逸音科技有限公司 | Feedforward type active noise reduction earphone acoustic structure |
| CN113068109B (en) * | 2021-03-26 | 2022-11-22 | 潍坊歌尔电子有限公司 | Horn testing mechanism |
| CN113055806A (en) * | 2021-04-22 | 2021-06-29 | 东莞市声强电子有限公司 | Acoustic testing system of active noise reduction earphone |
| CN116634327B (en) * | 2023-07-25 | 2023-10-17 | 深圳市盛佳丽电子有限公司 | Earphone loudspeaker that can effectively fall noise |
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| CN105721972A (en) * | 2016-01-22 | 2016-06-29 | 杨贺捷 | Method for manufacturing customized headset with replaceable acoustics component |
| CN106412788A (en) * | 2016-10-31 | 2017-02-15 | 歌尔科技有限公司 | Method and system for testing feed-forward active noise reduction earphones |
| CN106454674A (en) * | 2016-09-12 | 2017-02-22 | 歌尔股份有限公司 | Testing tooling |
| CN207443081U (en) * | 2017-11-15 | 2018-06-01 | 歌尔智能科技有限公司 | Earphone |
| CN208540118U (en) * | 2018-08-03 | 2019-02-22 | 歌尔智能科技有限公司 | The vibration insulation structure of headphone |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8976994B2 (en) * | 2012-06-20 | 2015-03-10 | Apple Inc. | Earphone having an acoustic tuning mechanism |
| CN203446007U (en) * | 2013-09-27 | 2014-02-19 | 宁波一凯电子有限公司 | In-ear headphones |
| CN107343247B (en) * | 2017-07-04 | 2020-07-14 | 瑞声科技(新加坡)有限公司 | Loudspeaker box |
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2020
- 2020-09-08 CN CN202010934112.XA patent/CN112312296B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105721972A (en) * | 2016-01-22 | 2016-06-29 | 杨贺捷 | Method for manufacturing customized headset with replaceable acoustics component |
| CN106454674A (en) * | 2016-09-12 | 2017-02-22 | 歌尔股份有限公司 | Testing tooling |
| CN106412788A (en) * | 2016-10-31 | 2017-02-15 | 歌尔科技有限公司 | Method and system for testing feed-forward active noise reduction earphones |
| CN207443081U (en) * | 2017-11-15 | 2018-06-01 | 歌尔智能科技有限公司 | Earphone |
| CN208540118U (en) * | 2018-08-03 | 2019-02-22 | 歌尔智能科技有限公司 | The vibration insulation structure of headphone |
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| CN112312296A (en) | 2021-02-02 |
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