USB Audio interface

[saraverbeecke]

Does anyone know if it is feasible to send a multi-channel digital audio stream (like TDM format) to a PC using a STM32H7 using MicroPython? Therefor it should act as an USB audio interface, but I cannot find any MicroPython examples on this subject...

[garthk]

It's not yet one of the examples but check out this working USB audio input gist! 👋 @benagricola

[jonnor]

For the input side, I2S is pretty well-supported on STM32. See machine.I2S: https://docs.micropython.org/en/latest/library/machine.I2S.html

PDM and TDM are not supported at the moment, I believe.