15 May
2004
15 May
'04
12:01 p.m.
hi,
what is the best way to get 4 independent outputs from an sblive!
i am using pd with jack but in qjackctl i only see 2 alsa_pcm playback
devices. Is it possible to get 4 outputs using an sblive and jack?
if not what's the best approach... alsa? oss?
thanks,
rob (planetccrma fedora core1)
16 May
16 May
8:06 p.m.
On Sat, 2004-05-15 at 06:53, robcanning wrote:
hi,
what is the best way to get 4 independent outputs from an sblive!
i am using pd with jack but in qjackctl i only see 2 alsa_pcm playback
devices. Is it possible to get 4 outputs using an sblive and jack?
if not what's the best approach... alsa? oss?
thanks,
Have played with this a little on SBlive 5.1 as well as a Santa Cruz
Turtle Biatch! And to no avail. I can get jack to accept 4 or 6 outputs
but plugging around the 3 different outs on the SBlive I could not hear
sound routed to those theoretical ports. Of course there's a kazillion
options in the alsa mixer panel and I may not have been setting it up
right...
But I remain optimistic as should you! No one here responded to a
similar question I asked about this...that means no one knows or the
depths of flexibility on cheapy cards have not been fully delved. :) (Or
nobody likes me! :P )
R~
rob (planetccrma fedora core1)
17 May
17 May
6:16 a.m.
you can use the pre-defined surround40 device, *but* jackd will
assume it also has 4 input channels and refuse to start, so you have
to define a new device based on surround40.
add this to your .asoundrc:
ctl.jack42 {
type hw
card 0
}
pcm.jack42 {
type asym
playback.pcm {
# route for mmap workaround
type route
slave.pcm surround40
ttable.0.0 1
ttable.1.1 1
ttable.2.2 1
ttable.3.3 1
}
capture.pcm {
# 2 channels only
type hw
card 0
}
}
then specify "jack42" as your alsa device when starting jackd. works
like a charm for me.
robcanning wrote:
hi,
what is the best way to get 4 independent outputs from an sblive!
i am using pd with jack but in qjackctl i only see 2 alsa_pcm playback
devices. Is it possible to get 4 outputs using an sblive and jack?
if not what's the best approach... alsa? oss?
thanks,
rob (planetccrma fedora core1)
--
Jörn Nettingsmeier
Lortzingstr. 11, 45128 Essen, Germany
http://spunk.dnsalias.org (my server)
http://www.linuxaudiodev.org (Linux Audio Developers)
12:45 p.m.
On Mon, 2004-05-17 at 01:00, Joern Nettingsmeier wrote:
you can use the pre-defined surround40 device, *but*
jackd will
assume it also has 4 input channels and refuse to start, so you have
to define a new device based on surround40.
add this to your .asoundrc:
ctl.jack42 {
type hw
card 0
}
pcm.jack42 {
type asym
playback.pcm {
# route for mmap workaround
type route
slave.pcm surround40
ttable.0.0 1
ttable.1.1 1
ttable.2.2 1
ttable.3.3 1
}
capture.pcm {
# 2 channels only
type hw
card 0
}
}
then specify "jack42" as your alsa device when starting jackd. works
like a charm for me.
So when this is running, what controls in alsa mixer are relevant for
the additional channels?
R~
robcanning wrote:
> hi,
>
> what is the best way to get 4 independent outputs from an sblive!
> i am using pd with jack but in qjackctl i only see 2 alsa_pcm playback
> devices. Is it possible to get 4 outputs using an sblive and jack?
> if not what's the best approach... alsa? oss?
> thanks,
>
> rob (planetccrma fedora core1)
>
1:32 p.m.
On Mon, 2004-05-17 at 01:00, Joern Nettingsmeier
wrote:
not at my home box atm, but iirc it's "surround".
you can use the pre-defined surround40 device,
*but* jackd will
assume it also has 4 input channels and refuse to start, so you have
to define a new device based on surround40.
add this to your .asoundrc:
ctl.jack42 {
type hw
card 0
}
pcm.jack42 {
type asym
playback.pcm {
# route for mmap workaround
type route
slave.pcm surround40
ttable.0.0 1
ttable.1.1 1
ttable.2.2 1
ttable.3.3 1
}
capture.pcm {
# 2 channels only
type hw
card 0
}
}
then specify "jack42" as your alsa device when starting jackd. works
like a charm for me.
So when this is running, what controls in alsa mixer are relevant for
the additional channels?
7589
days inactive
7591
days old
linux-audio-user@lists.linuxaudio.org
4 comments
3 participants
participants (3)
-
Joern Nettingsmeier -
robcanning -
Russell Hanaghan