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In this video I want to explain you how to realize audio spectrum analysis based on FFT function on the STM32.

0:01 - General Introduction
7:27 - Code review
12:36 - Testing with tone generator
14:14 - Testing with music

For further details on the STM32 hardware configuration and the DMA usage, please watch my first video on the STM32 audio-dsp sessions where I explained this topic in detail:
   • [#5] IIR Filters - Audio DSP On STM32...  

More detailed explanation on the block-based processing approach with the help of the CMSIS DSP library you can watch here:
   • [#15] CMSIS DSP Library - Audio DSP O...  

Download the code here:
https://github.com/YetAnotherElectron...


Used hardware:

Pmod I2S2 Stereo In/Out Board
https://store.digilentinc.com/pmod-i2...

STM32F407G-DISC1 Evalboard
https://www.digikey.de/short/pd8tnp

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