Id’ like see in Dietpi LEDFX.
LedFx offers is the ability to take audio input, and instantanously processes the audio into realtime lightshow to multiple LED strips/matrix.
https://ledfx.readthedocs.io/en/docs/installing.html#raspberry-pi-installation
II’ve tried to install it, but I can’t find the file /usr/share/alsa/alsa.conf
Thanks