STM32. FFT. DSP. Fourier. Different Audio Spectrums. Фурье-преобразование и спектры звука. STM32F407

Описание: Делаем быстрое Фурье преобразование. Выводим спектр на дисплей ILI9341. Смотрим спектры синуса, пилы, меандра. А также спектры сэмплов инструментов из FL.
Launch FFT with DSP Library and STM32F407 in Cube. Watch spectrums: sine wave, saw, square and spectrums of violin, flute, trumpet samples taken from FL Studio.
Generator: https://vb-audio.pagesperso-orange.fr...
Статья про FFT на DSP: https://hubstub.ru/stm32/149-stm32-by...
Cloud with Cube Project: https://cloud.mail.ru/public/QYf8/E4s...

/*Code is demo, data processing is not in real time. It's bad decision to process data in callback, switching off and on dma, but this is quick way to watch demo FFT results */