[alsa-devel] [PATCH 1/2] Remove definition for surround sound devices on ICE1712.

[Jaroslav Kysela]

On Tue, 20 Jan 2009, Alan Horstmann wrote:

> On Tuesday 20 January 2009 13:49, Diego E. 'Flameeyes' Petten? wrote:
> > Jaroslav Kysela <perex at perex.cz> writes:
> > > Do you have seen M-Audio Delta 1010 ?
> 
> Or DMX6fire, or Hoontech/ST.Audio dsp2000, or rest of a list... It seems to me 
> that only a few cut-down card versions have only 2 analogue in/out.
> 
> > Still, as they are the devices are non-functional at least on my card,
> > and I'm ready to bet that the same would happen on the Delta 1010 given
> > that the number of channels is not coherent (you try to open surround71
> > as 8-channels and it'll fail because this minimal card has 10; if the
> > 1010 has the same amount of channels, it'll still fail).
> 
> Here (on a rather old Alsa version)  on DMX6fire:
> 
> aplay -Dfront try1.wav
> 
> does fail unless try1.wav is a 10-channel file, whereupon just the first 2 
> channels play out.  A standard stereo wav file fails with a sample format 
> error.  So there is something not quite right with the config files.

Note that front and surround devices does not support automatic sample 
conversion. Use plug:front, plug:surround40 etc. devices.

					Jaroslav

-----
Jaroslav Kysela <perex at perex.cz>
Linux Kernel Sound Maintainer
ALSA Project, Red Hat, Inc.