Talk:Alsamixer

From the ALSA wiki

items meaning

Hello,
each time I use alsamixer I get into trouble with the meaning of :

• the two signs OO and MM : I never remember which means the channel is open and which mute.

FAQ seen

Check for a little "MM" at the top of alsamixer's display. "MM" means the left+right stereo channels are muted. 
You can toggle muting on or off by pressing the "m" key. 

• the names of the channels which are very esoterical.

Could you explain them in a wiki page, such as PCM ?