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ANC earphone acoustic test system

A technology for acoustic testing and earphones, applied in earphones to reduce environmental noise, earpiece/earphone accessories, electrical components, etc., can solve problems such as narrowing of frequency response range, simulation test, leakage, etc., and achieve the effect of small resistance, easy installation and replacement

Active Publication Date: 2021-02-02
深圳市逸音科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production consistency of noise-cancelling headphones is very high. At the same time, it is also necessary to consider whether the design of the headphones can ensure the consistency of leakage when worn by real people. The common method in design is to increase the leakage resistance of the front cavity, but this will lead to frequency response The range is narrowed, which reduces the sensitivity of the earphone. In order to solve this problem, someone proposed a design of a resonance damping speaker box. In the speaker installation box, it is proposed to realize the problem through the material selection and structural design of the resonance damping speaker box. Solved, but the prior art has not been able to provide a system for simulating the acoustic performance of the resonance damping speaker box

Method used

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Embodiment Construction

[0024] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0025] Such as figure 1 , figure 2 , image 3 As shown, a kind of ANC earphone acoustic test system of the present invention comprises audio system 01, the test sound card 02 that is connected with described audio system 01, is connected with described test sound card 02, the test microphone 03 that collects test sound signal, and all The converter 04 connected to the test sound card 02, and the console 05 connected to the converter 04, outputting control signals and receiving test sound signals, the audio system 01 includes a test speaker, and the test speaker includes an analog front shell 11 and an analog The rear shell 12, the simulated front shell 11 is fastened with the simulated rear shell 12, the simulated front shell 11 is provided with a front cavity 21, and the simulated front shell 11 is also provided with a middle cavity, a channel 4 and a leakage hol...

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Abstract

The invention relates to the technical field of earphone acoustic structures, in particular to an ANC earphone acoustic test system. The system comprises an audio system, a test sound card, a test microphone, a converter and a console; the audio system comprises a test loudspeaker, and 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 duct and a leakage hole, the middle cavity is internally provided with a test space for accommodating a tested resonance damping horn box, 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, and the installation hole site 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 site. The ANC earphone acoustic test system can be used for testing a resonance damping loudspeaker box with a special structure, the tested resonancedamping loudspeaker box is easy to install and replace, and the actual earphone assembly environment of a loudspeaker is simulated.

Description

technical field [0001] The invention relates to the technical field of earphone acoustic structure, in particular to an ANC earphone acoustic test system. Background technique [0002] The acoustic structure of active noise-cancelling headphones seriously affects the overall performance of the headphones, and they must pass various tests before entering the market. [0003] A 2 NC2.0 is a representative of the new generation of headphone technology, but there are still many technical problems to be solved. The production consistency of noise-cancelling headphones is very high. At the same time, it is also necessary to consider whether the design of the headphones can ensure the consistency of leakage when worn by real people. The common method in design is to increase the leakage resistance of the front cavity, but this will lead to frequency response The range is narrowed, which reduces the sensitivity of the earphone. In order to solve this problem, someone proposed a de...

Claims

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Application Information

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IPC IPC(8): H04R29/00H04R1/10
CPCH04R29/001H04R1/10H04R1/1083
Inventor 王雨雷田嵘
Owner 深圳市逸音科技有限公司
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