Hello. I've been studying alsa for a couple of days now, but I still have a few nagging questions I would like answered. I still don't understand how predefined aliases work. For example, let's take spdif definitions in /usr/share/alsa/alsa.conf: pcm.iec958 cards.pcm.iec958 pcm.spdif cards.pcm.iec958 These don't seem to lead anywhere as far as I can see. Where is 'cards.pcm.iec958' defined? Here is my sound card: val@boss:~$ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: M2496 [M Audio Audiophile 24/96], device 0: ICE1712 multi [ICE1712 multi] Subdevices: 1/1 Subdevice #0: subdevice #0 What exactly is the difference in how these two commands are handled? aplay -Dhw:0,0 dts_test.wav (Hissing coming from speakers) and aplay -Dspdif dts_test.wav (Receiver clicks, switching to DTS and plays) Is 'cards.pcm.iec958' some sort of an internal predefined interface that means something to ALSA so it knows that the incoming stream is not to be processed as PCM, but rather just dumped into the sound card 'as is'? If so, where can I see these "magically" defined interfaces? Thanks. Val ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
