[Jack-Devel] Connecting alsa-loopback to jack
Hi,
since http://alsa.opensrc.org/Jack_and_Loopback_device_as_Alsa-to-Jack_bridge
seemsdead and gone, I'm asking here, as I believe there are quite a lot of
experts reading the list.
After I finally got jack workingusing jack1 I want to connect the alsa
loopback device with my recording/playback interface to be able to use both
devices with jack.
Jack is just working fine. But trying to playback with the loop device gives
no sound.
I'm sure, this is just aconfiguration problem, but I'm not able to figure out
the correct config.
This is what I got so far:
jankoh@kohni ~ $ cat .asoundrc
# playback PCM device: using loopback subdevice 0,0
pcm.amix {
type dmix
ipc_key 219345
slave.pcm "hw:Loopback,0,0"
}
# capture PCM device: using loopback subdevice 0,1
pcm.asnoop {
type dsnoop
ipc_key 219346
slave.pcm "hw:Loopback,0,1"
}
# duplex device combining above PCM devices
pcm.aduplex {
type asym
playback.pcm "amix"
capture.pcm "asnoop"
}
pcm.merge {
type multi;
slaves.a.pcm hw:Blackjack
slaves.a.channels 2;
slaves.b.pcm hw:Loopback
slaves.b.channels 2;
bindings.0.slave a;
bindings.0.channel 0;
bindings.1.slave b;
bindings.1.channel 0;
bindings.2.slave a;
bindings.2.channel 1;
bindings.3.slave b;
bindings.3.channel 1;
}
ctl.merge {
type hw
card 2
}
jankoh@kohni ~ $ cat /proc/asound/cards
0 [SB ]: HDA-Intel - HDA ATI SB
HDA ATI SB at 0xfdff4000 irq 16
1 [NVidia ]: HDA-Intel - HDA NVidia
HDA NVidia at 0xfbffc000 irq 19
2 [Blackjack ]: USB-Audio - Onyx Blackjack
Loud Technologies Inc. Onyx Blackjack at
usb-0000:00:13.0-5, full speed
3 [Loopback ]: Loopback - Loopback
Loopback 1
jankoh@kohni ~ $
Can you point me to related documentation or give me a hint, where the error
could be?
Thanks!
--
MfG Jan
1342552172.26513_0.ltw:2,a <2921283.0ZrPQXCpVn at kohni>