Folk, 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/ . -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/171056950.51085.43123@cantor.invalid
