terminology for sound thingamajigs.
man speaker-test has
"... --channels ... --device ... --speaker ...".
man alsamixergui has
"... -c <card number or identification> ... -D <device identification> ...".
The distinction between channel and device isn't obvious. Why does
a simple USB audio adapter with mono input and stereo output
provide four devices? http://wiki.debian.org/ALSA uses terminology
without explanation. Neither http://en.wikipedia.org/wiki/Sound_card
nor http://www.alsa-project.org/ helps much.
Does anyone know of a decent overview of sound hardware and terminology?
Yes, I've googled.
Thanks, ... Peter E.
Telephone 1 360 450 2132.
Shop pages http://carnot.yi.org/ accessible as long as the old drives survive.
Personal pages http://members.shaw.ca/peasthope/ .