Method and system for testing array microphone and rotating device

A technology of array testing and testing methods, applied in the direction of electrical components, etc.

Active Publication Date: 2011-05-25
SHENZHEN HORN AUDIO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the microphone units need to be replaced sequentially for testing when testing the array microphone, it is necessary to provide a method for testing the array microphone that can perform multi-channel synchronous testing on all the microphone units of the array microphone

Method used

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  • Method and system for testing array microphone and rotating device
  • Method and system for testing array microphone and rotating device
  • Method and system for testing array microphone and rotating device

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Embodiment Construction

[0020] In order to make the objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0021] figure 1 It is a flowchart of a method for testing an array microphone in an embodiment, comprising the following steps:

[0022] S110, connect the microphone array to the array test circuit, and supply power to the array microphone through the array test circuit.

[0023] figure 2 is a schematic circuit diagram of the array test circuit in one embodiment. The array test circuit includes a resistance, a capacitance and a response signal output terminal corresponding to each microphone unit. In this embodiment, the array microphone is a four-channel array microphone (that is, one array microphone includes four microphone units). Therefore, there are 4 resistors, 4 capacitors and 4 response signal output terminals in total. Each r...

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Abstract

The invention relates to a method for testing an array microphone. The method comprises the following steps of: accessing a microphone array to an array test circuit, and supplying electricity to the array microphone by using the array test circuit; making a test tone source give off a test tone, and acquiring 0-degree characteristic of each microphone monomer of the array microphone at the same time; rotating the array microphone 180 degrees to ensure that the array microphone facing the test tone source originally turns back to the test tone source; acquiring the 180-degree characteristic of each microphone monomer of the array microphone at the same time; and calculating, and judging whether the microphone is qualified according to the 0-degree characteristic and the 180-degree characteristic. The invention also relates to a system for testing the array microphone and a rotating device. Multi-channel synchronous input and output are realized, the array microphone is tested under the condition of not sequentially replacing microphone monomers, efficiency is high and test escape and false test are avoided. The unintuitive electroacoustic performance test is also automatically finished by a program so that the manual calculation is not needed and the confidence is high. The method and the device for testing the array microphone and the rotating device make the large-batch audio test possible.

Description

【Technical field】 [0001] The invention relates to a testing device in the field of electroacoustics, in particular to a testing method and system for an array microphone, and also to a rotating device for testing the array microphone. 【Background technique】 [0002] Single-channel audio test When testing array microphones and speakers, it is necessary to replace the microphone units of the array microphones in sequence to obtain data. If the array microphone needs to test the 180-degree characteristic, it is also necessary to turn the array microphone to To the 180-degree direction, and then replace the microphone unit in turn for testing. This kind of testing work is complicated, and batch testing cannot be completed. In addition, during the test process, the test sequence of the microphone unit is prone to errors and missed tests, and it is not easy to detect. If you need to test the non-intuitive electroacoustic performance of the microphone unit and the microphone unit ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R29/00
Inventor 乔杰李军温志锋罗锡耀李俊
Owner SHENZHEN HORN AUDIO
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