A Hardware Debugging Method for Analog Microphone

Abstract

The present invention discloses a hardware debugging method for an analog microphone, comprising: step S1, measuring signal parameters of an integrated circuit chip and all pins of an analog-to-digital converter in a test environment; step S2, connecting the positive electrodes of all microphone sound pickup holes to the The negative pole is short-circuited and connected to the signal amplifier, the output maximum level is controlled within the preset voltage, and then the audio signal is connected to the signal amplifier to analyze the channel performance of the analog microphone; Step S3, respectively blocking the first microphone of the analog microphone to pick up the sound hole, the third microphone sound pickup hole and the fourth microphone sound pickup hole, and then perform recording to analyze the tightness of each microphone sound pickup hole; Step S4, after recording, block each microphone sound pickup hole in sequence and check for multiple Recording sequence of the microphone sound pickup holes; Step S5, respectively test the output level signal parameters and frequency response signal parameters of the analog microphone to check the electrical performance of the analog microphone. Beneficial effects: simple operation, saving time and cost.

Description

technical field [0001] The invention relates to the technical field of analog microphones, in particular to a hardware debugging method of an analog microphone. Background technique [0002] With the popularization and application of smart electronic products, smart TVs, smart set-top boxes, smart speakers, etc. are electronic products that require voice control, and their voice control needs to be processed by a microphone. The voice recognition function of the microphone is very important for voice-controlled electronic products. . Microphones include analog microphones and digital microphones, and the typical output impedance of an analog microphone is several hundred ohms. [0003] In the prior art, the channel performance consistency of the analog microphone is very poor, the recording sequence is prone to errors, and the sealing is poor. The above reasons often cause the voice to be unrecognizable or the voice recognition effect is poor; and according to actual use, i...

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Problems solved by technology

[0003] In the prior art, the channel performance consistency of the analog microphone is very poor, the recording sequence is prone to errors, and the sealing is poor. The above reasons often lead to unrecognizable voice or poor voice recognition; and according to actual use, it is found that the voice cannot be recognized or If the voice recognition effect is poor, let’s find out the reason. The above methods need to waste a lot of time, manpower and money, and cannot completely solve a series of problems such as poor channel performance consistency of analog microphones, wrong recording sequence, poor sealing, and whether the electrical performance meets the requirements.

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