On Wed, 20 Feb 2002, Adam K Kirchhoff wrote:
>
> On Wed, 20 Feb 2002, Takashi Iwai wrote:
>
> > At Wed, 20 Feb 2002 08:50:23 -0500 (EST),
> > Adam K Kirchhoff wrote:
> > >
> > >
> > > On Wed, 20 Feb 2002, Takashi Iwai wrote:
> > >
> > > > At Mon, 18 Feb 2002 22:45:07 EST (-0500),
> > > > Adam K Kirchhoff wrote:
> > > > >
> > > > >
> > > > > I'm curious if anyone has gotten one of the ymfpci cards to work with
> > > > >
> > > > > front and rear output with the OSS emulation? Is it even supported at
> > > > >
> > > > > this point?
> > > >
> > > > (please note i myself didn't test the following:)
> > > >
> > > > the rear pcm assigned to device #2. so at first please check whether
> > > > the driver really supports rear speakers by playing via hw:0,2, i.e.
> > >
> > > It does.... Alsa has natively supported both the front and rear channels
> > > for a number of months now, iirc.
> > >
> > > > % aplay -Dhw:0,2 foo.wav
> > >
> > > Yep. That works fine.
> > >
> > > One of the first things I'm noticing now, however, is that the only Alsa
> > > application that seems to use the rear speakers is aplay, and only when
> > > specified. For example, alsaplayer will still only use the front
> > > speakers.
> >
> > it's a problem of alsaplayer. doesn't work "alsaplayer -d hw:0,2" ?
>
> Good question... That's something I haven't tried. I'll give it a shot
> when I get home.
>
> However, here's the thing... alsaplayer uses both the front and rear
> outputs with the SB Live! by default. No need to specify one or the
> other.
>
> Now, I understand that since so many more people have SB Live! cards
> driver development obviously isn't going to focus on the ymfpci cards as
> much, but I'm curious if this is something that can eventually be enabled?
> Is it an issue with the yamaha hardware?
Yamaha hardware has some contraints. The signal route for rear speakers is
shared with the S/PDIF path, so you cannot use them at same time
simultaneously. It's no problem for us to add a new control for the rear
device (hw:0,2) which can control front speakers as well. We can also
invert hw:0,2 and hw:0,0 after that change, so the default working mode
will be "use front & rear speakers".
Jaroslav
-----
Jaroslav Kysela <[EMAIL PROTECTED]>
Linux Kernel Sound Maintainer
ALSA Project http://www.alsa-project.org
SuSE Linux http://www.suse.com
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