I need to do the following (if possible in Python):
- output at the same time on multiple USB sound card (cheap one you can find on Amazon)
- on the main audio file, I need to output temporary sound
- if possible I would like also to be able to use on a given sound card only the left channel or the right channel for 2 differents main audio file.
I did try Pygame.mixer:
I managed to do 3) and 2) quite easily on the main audio output of the Pi but I did not manage to select different sound card neither to use multiple sound card. - ( Then I try sounddevice library with the following exemple: http://www.esologic.com/multi-audio/
I can play .wav files on multiple USB audio output (task 1) but I do not get how to do task 2 & 3.