Sound frequency detector on STM32F7xx

Описание к видео Sound frequency detector on STM32F7xx

A short demo of a sound frequency detector which uses magnitude FFT to find the harmonic with the largest magnitude which represents the detected note.

The exact MCU is STM32F746zgt6u on the NUCLEO-F746zg (or Nucleo-144) board.
Mic click is used for sound acquisition.
OLED B click is used for displaying results.

CMSIS DSP functions are used for FIR filtering, decimation and FFT calculation in Q15 precision.

If anyone is interested in more details, or the original code which is run on the MCU please leave a comment.

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