How to process sound from a microphone on arduino?

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vaselekk2020-12-22 00:02:28

Arduino

vaselekk, 2020-12-22 00:02:28

How to process sound from microphone on ardino? what sensor to use? and you can get sound frequencies

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V

VT100, 2020-12-22
@VT100

what sensor to use? and you can get sound frequencies

Judging by the tag of the entry - the one that is. For example - an electret microphone from a broken headset. If necessary - with an amplifier (you must specify which reference voltage for the ADC is supposed to be used).
If you need an analysis of the sound spectrum, read about the FFT (Fast Fourier Transform, FFT) and how it was done 30 years ago in AONs (on significantly weaker microcontrollers).

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Borys Latysh, 2021-02-14
@nava2002

https://radioprog.ru/post/533
I made this device for the guitar and it works great.
The point is that we digitize the signal to the ADC, then we do what we want with it, and then we collect it using 2 PWM outputs.
An Arduino UNO or any other requires an Analog input and at least 2 PWM outputs.