Updated WalkThrough_User_PulseOnJack (markdown)

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mxa 2014-08-16 21:01:22 -07:00
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# Running PulseAudio on top of JACK
If you intend to use consumer applications like Flash or media players in your JACK setup, one possible solution is to use PulseAudio as an intermediate layer for all these non-JACKified programs. Basically, it boils down to the following:
1. Redirect all ALSA output to PulseAudio
1. Redirect PulseAudio to JACK
## Redirecting ALSA to PulseAudio
Use the following settings in /etc/asound.conf (or $HOME/.asoundrc)
pcm.pulse {
type pulse
}
ctl.pulse {
type pulse
}
pcm.!default {
type pulse
}
ctl.!default {
type pulse
}
## Redirecting PulseAudio to JACK
On Debian-like systems, be sure to install *pulseaudio-module-jack*. (TODO: Add information about Fedora, OpenSuSE and the lot)
Then, use the following configuration if you intend to run jackd all the time:
*~/.pulse/default.pa*:
load-module module-native-protocol-unix
load-module module-jack-sink channels=2
load-module module-jack-source channels=2
load-module module-null-sink
load-module module-stream-restore
load-module module-rescue-streams
load-module module-always-sink
load-module module-suspend-on-idle
set-default-sink jack_out
set-default-source jack_in
The following isn't strictly necessary but might be useful. *~/.pulse/daemon.conf*:
default-sample-format = float32le
default-sample-rate = 48000
realtime-scheduling = yes
exit-idle-time = -1
If you're using qjackctl as a launcher for jackd.
in settings options add a post startup script like this:
pactl load-module module-jack-sink channels=2; pactl load-module module-jack-source channels=2; pacmd set-default-sink jack_out
# Running PulseAudio on top of JACK
If you intend to use consumer applications like Flash or media players in your JACK setup, one possible solution is to use PulseAudio as an intermediate layer for all these non-JACKified programs. Basically, it boils down to the following:
1. Redirect all ALSA output to PulseAudio
1. Redirect PulseAudio to JACK
Warning: If you follow this setup there is no control with qjackctl. Any settings there will have no effect. You will have to make changes to the configuration with jack_control. jack_control has no man page, try jack_control --help.
## Redirecting ALSA to PulseAudio
Use the following settings in /etc/asound.conf (or $HOME/.asoundrc)
pcm.pulse {
type pulse
}
ctl.pulse {
type pulse
}
pcm.!default {
type pulse
}
ctl.!default {
type pulse
}
## Redirecting PulseAudio to JACK
On Debian-like systems, be sure to install *pulseaudio-module-jack*. (TODO: Add information about Fedora, OpenSuSE and the lot)
Then, use the following configuration if you intend to run jackd all the time:
*~/.pulse/default.pa*:
load-module module-native-protocol-unix
load-module module-jack-sink channels=2
load-module module-jack-source channels=2
load-module module-null-sink
load-module module-stream-restore
load-module module-rescue-streams
load-module module-always-sink
load-module module-suspend-on-idle
set-default-sink jack_out
set-default-source jack_in
The following isn't strictly necessary but might be useful. *~/.pulse/daemon.conf*:
default-sample-format = float32le
default-sample-rate = 48000
realtime-scheduling = yes
exit-idle-time = -1
If you're using qjackctl as a launcher for jackd.
in settings options add a post startup script like this:
pactl load-module module-jack-sink channels=2; pactl load-module module-jack-source channels=2; pacmd set-default-sink jack_out