On Friday 30 June 2006 11:17, you wrote:
> At Thu, 29 Jun 2006 23:11:05 +0100,
>
> Alan Horstmann wrote:
> > On Tuesday 20 June 2006 10:56, you wrote:
> > > At Mon, 19 Jun 2006 22:12:57 +0100,
> > >
> > > Alan Horstmann wrote:
> > > > Another alternative would be for ALSA to create at least two devices,
> > > > one for all playback channels, the other for all capture, eg /dsp0
> > > > and /adsp0 or something else. It would then be more like the raws
> > > > OSS in its behaviour. That would also solve the problems here.
> > > > Obviously a full implementation as per attached description would
> > > > also be fine!
> > >
> > > It's easy over aoss. Having the following
> > >
> > > pcm.dsp0 {
> > > type asym
> > > playback.pcm "plughw"
> > > }
> > >
> > > pcm.dsp1 {
> > > type asym
> > > capture.pcm "plughw"
> > > }
> > >
> > > would give you /dev/dsp0 for playback and /dev/dsp1 for capture.
> > > You can replace "plughw" whatever you like, of course.
> >
> > I'm not very familiar with these conf files, and have tried for hours to
> > get this to work. However, at best
> > aoss audacity
> > results in
> > ALSA lib pcm_asym.c:106:(_snd_pcm_asym_open) playback slave is not
> > defined ALSA lib pcm_asym.c:106:(_snd_pcm_asym_open) capture slave is not
> > defined
> >
> > Have I missed other bits?
> >
> > Also, won't using aoss introduce a performance hit?
>
> Err, I should have tested before posting. How about below?
>
> pcm.dsp0 {
> type asym
> playback.pcm "plughw"
> capture.pcm "null"
> }
> pcm.dsp1 {
> type asym
> playback.pcm "null"
> capture.pcm "plughw"
> }
Now a different set of errors, interspersed with portaudio errors/warnings....
ALSA lib pcm.c:2146:(snd_pcm_open_noupdate) Unknown PCM dsp2
ALSA lib pcm_null.c:347:(snd_pcm_null_open) Cannot open /dev/full: Permission
denied
ALSA lib pcm_null.c:347:(snd_pcm_null_open) Cannot open /dev/full: Permission
denied
ALSA lib control.c:816:(snd_ctl_open_noupdate) Invalid CTL mixer0
ALSA lib control.c:816:(snd_ctl_open_noupdate) Invalid CTL mixer0
ALSA lib control.c:816:(snd_ctl_open_noupdate) Invalid CTL mixer1
ALSA lib control.c:816:(snd_ctl_open_noupdate) Invalid CTL mixer2
ALSA lib control.c:816:(snd_ctl_open_noupdate) Invalid CTL mixer3
ALSA lib control.c:816:(snd_ctl_open_noupdate) Invalid CTL mixer0
ALSA lib control.c:816:(snd_ctl_open_noupdate) Invalid CTL mixer0
ALSA lib control.c:816:(snd_ctl_open_noupdate) Invalid CTL mixer1
ALSA lib control.c:816:(snd_ctl_open_noupdate) Invalid CTL mixer2
ALSA lib control.c:816:(snd_ctl_open_noupdate) Invalid CTL mixer3
Alan
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