Document Audio setup on VSERPI

[rootnotez]

For those instruments that have audio reactivity (AUTO_WAAAVE and Phosphorm)? Document which linux audio system is being used. I.e. Jack, Pulse, ALSA

https://www.raspberrypi.com/documentation/accessories/audio.html

[beauchab]

** Tested on Raspberry Pi 3B+ v1.4 **
Read under discussions for full setup:

In order to fix the audio issue the .asoundrc file at <~/.asoundrc> needs to be modified as follows:

pcm.!default {
type hw
card sndrpihifiberry
}
ctl.!default {
type hw
card sndrpihifiberry
}

The system was then rebooted and audio input worked properly.