Tech Forum

June 2012

FFT Audio Spectrum Analyzer

How can I implement FFT in microcontrollers so that I can do a frequency analysis of incoming audio signals that I have sampled through the A/D converter? I am not getting just where to start, though I know mathematical techniques of FFT. I want to deploy a cool audio spectrum analyzer for my audio system using matrix LEDs.

#6127
Abhishek Kumar
Meerut, Uttar Pradesh, India

Associated files:

Answers

I googled "audio FFT for PIC libraries" and got several hits for arduino and Rpi libraries Give it a try, I think you will find what you're looking for.

William B Runyon Sr
Chesapeake, VA