[MPlayer-users] ALSA (0.9.1) + mplayer (0.90rc4) + Audigy2 + channels & surround problem

[gabor]

On Fri, 2003-03-14 at 21:50, Corey Hickey wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> Zdenek Pizl wrote:
> > [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> > Hallo all,
> > 
> >  finally I got my Audigy 2 soundcard and Genius SW HomeTheatre 5.1 repro. 
> > I've installed ALSA emu10k1 - the system sound worked. Then I tried to play a 
> > movie and noticed the sound isn't going from all speakers but only from rear 
> > and center+subwoofer ones. The front left/right is quiet.
> > 
> >  I know about mplayer options -channels 6 and/or -ao alsa9:surround51 but all 
> > these result into NOSOUND :(
> > 
> >  Is it possible to made mplayer to use 5.1 reprosystem even when the movie has 
> > only 2 channels? I think so, but I cannot managed it ...
> > 
> > BTW - where can I get all options and suboptions of mplayer. 'cause i.e. 
> > alsa9:surround51 isn't described in neither man nor htdocs (or didn't I find 
> > it?)
> > 
> > Thanks in advance
> > 					Z.P.
> >  
> 
> I don't think there's any list around, though I'd appreciate one as I've
> been investigating multi-channel capabilities myself lately. Some
> options that I know of:
> 
> alsa9:front		output with front speakers
> alsa9:rear		output with rear speakers
> alsa9:surround51	set soundcard to 6-channel output
> alsa9:surround40	set soundcard to 4-channel output
> alsa9:hw:1,0		use soundcard #1 (the second card), subdevice 0
> 
> Corrections and additions from anyone would be great!
> 
i think you are correct :) my sblive does the same....

btw. if talking about alsa...

what volume controls do you use?
i always tried to switch from oss to alsa,
but i always failed to find the correct volume controls ( there are LOTS
of them in alsamix ).

for example in oss it's simple:
front-volume = VOL * PCM
rear-volume  = OGAIN * PCM

so if i want to adjust the volume globally i use the PCM volume control,
if separately i use VOL or OGAIN.

which volume controls do you use in alsa?

thanks,
gabor

> -Corey
> 
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