Hardware debugging method for analog microphone

Abstract

The invention discloses a hardware debugging method for an analog microphone, and the method comprises the steps: S1, measuring signal parameters of all pins of an integrated circuit chip and an analog-to-digital converter in a test environment; S2, short-connecting the positive electrodes and the negative electrodes of all microphone pickup holes, connecting the microphone pickup holes with a signal amplifier, outputting a maximum level, controlling the maximum level within a preset voltage, recording, and connecting an audio signal to the signal amplifier to analyze the channel performance of the analog microphone; step S3, respectively blocking a first microphone pickup hole, a third microphone pickup hole and a fourth microphone pickup hole of the analog microphone, and then recordingand analyzing the sealing performance of each microphone pickup hole; S4, after recording, blocking each microphone pickup hole in sequence, and checking the recording sequence of the plurality of microphone pickup holes; and S5, respectively testing an output level signal parameter and a frequency response signal parameter of the analog microphone, and checking the electrical performance of the analog microphone. The method has the beneficial effects of simplicity in operation and time and cost saving.

Description

technical field [0001] The present invention relates to the technical field of analog microphones, in particular to a hardware debugging method for analog microphones. 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 analog microphones 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 lead to unrecognizable voice or poor voice recognition; and according to actual use, it is found that t...

AI Technical Summary

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 speech 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.

Images