Hi!
In general you can't. But there is one trick I know. You can configure
alsa's default device to be a jack-client. that means, your app says let me
use ALSA and alsa just says: None of my worry I pass it on to jack. You can do
that in your .asoundrc in your homedirectory. I did it like this:
edit ~/.asoundrc
pcm.!default
{
type plug
slave
{
pcm "myjack"
}
}
pcm.myjack
{
type jack
playback_ports
{
0 alsa_pcm:playback_1
1 alsa_pcm:playback_2
}
capture_ports
{
# I use capture_1 twice, because it give stereo microphone input
0 alsa_pcm:capture_1
1 alsa_pcm:capture_1
}
}
You should make sure, there is no other "pcm.!default" in your .asoundrc. If
there is noe move it to something like "pcm.old_default".
So when you run on simple ALSA, no JACK at all, you could still easily use
alsa by:
1. giving the proper "old_default" device as alsa-device to the app you run.
OR:
2. By chaning "pcm.!default" to "pcm.old_default" and vice versa.
For me it works perfectly with most apps.
By wrapping the myjack pcm-device in a plug (pcm".!default" I even get some
nice and comfortable conversions done.
Hope that helps!
Kindest regards
Julien
--------
Music was my first love and it will be my last (John Miles)
======== FIND MY WEB-PROJECT AT: ========
http://ltsb.sourceforge.net
the Linux TextBased Studio guide
======= AND MY PERSONAL PAGES AT: =======
http://www.juliencoder.de
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