sound config

volume management is entrusted to alsamixer, the console volume control center.

operations are simple:

• display channel with Left/Right arrows.
• decrease/increase the volume with Up/Down arrows.
• mute channel with the 'm' key.
• Esc to leave.
• complete help with the F1 key.

alsamixer can be launched from a terminal with the 'alsamixer' command or from a menu: apps:media:volume