[MPlayer-users] Sound Volume Control

Alexander Roalter roalter at cs.tum.edu
Mon Apr 10 15:26:36 CEST 2006


I recently ran into a problem with the volume control using ALSA.
I have two sound cards in my system (a 5.1 Onboard (NForce4 chipset) and 
a Creative EnSonic Stereo). I use the stereo card for listening to music 
on the PC or occasionally watching videos directly on screen, so I use 
-ao alsa:device=hw=1, and the sound comes from the speakers on my desktop.

When watching DVDs or other features, I use the 5.1 system (located 
elsewhere in the room, hence no use for it when listening to music while 
sitting on the computer) and output the video via TV-Out to the TV set.
then I use -ao alsa:device=hw=0

If then I use the volume control (on the keypad *,/), on both cases
the volume for the 5.1 system is changed.

I know I could use oss for the first (stereo) setup, and everything 
would work just fine, but a) I'm eager to know whether this is a 
misconfiguration by me or an illbehavior of mplayer's alsa driver and b) 
I'd like to use alsa only and not some cripple setup with oss support...


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