STM32 Sound Analyzer

Embedded Systems & Microcontrollers — incorrectly specified categories?

45 USD

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STM32 Sound Analyzer

There are
1. STM32F411RET6
2. Audio input from 1 Vrms can be up to 2.4 Vrms

Task
1. Organize a scheme where the left and right audio channels come to the STM32, the wiring must be of the highest quality, there should be no interference with the sound.
2. Use Easy EDA
3. The entire spectrum is needed (something like MSGEQ7 will not work)
4. All components used must be available on JLCPCB in large quantities

The main task is not to spoil the characteristics of the DAC, which has 117dB signal/noise, distortion ≤ 0.0006%
Simple schemes with a couple of capacitors and a divider will not work

Power supply can be from:
3.3V (the best option for me)
5V
12V