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Updated WalkThrough_User_PulseOnJack (markdown)

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mxa 2014-08-16 21:01:22 -07:00
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WalkThrough_User_PulseOnJack.md
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# Running PulseAudio on top of JACK # 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: 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 all ALSA output to PulseAudio
1. Redirect PulseAudio to JACK 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
## Redirecting ALSA to PulseAudio
Use the following settings in /etc/asound.conf (or $HOME/.asoundrc)
Use the following settings in /etc/asound.conf (or $HOME/.asoundrc)
pcm.pulse {
type pulse pcm.pulse {
} type pulse
}
ctl.pulse {
type pulse ctl.pulse {
} type pulse
}
pcm.!default {
type pulse pcm.!default {
} type pulse
ctl.!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) ## 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:
Then, use the following configuration if you intend to run jackd all the time:
*~/.pulse/default.pa*:
*~/.pulse/default.pa*:
load-module module-native-protocol-unix
load-module module-jack-sink channels=2 load-module module-native-protocol-unix
load-module module-jack-source channels=2 load-module module-jack-sink channels=2
load-module module-null-sink load-module module-jack-source channels=2
load-module module-stream-restore load-module module-null-sink
load-module module-rescue-streams load-module module-stream-restore
load-module module-always-sink load-module module-rescue-streams
load-module module-suspend-on-idle load-module module-always-sink
set-default-sink jack_out load-module module-suspend-on-idle
set-default-source jack_in set-default-sink jack_out
set-default-source jack_in
The following isn't strictly necessary but might be useful. *~/.pulse/daemon.conf*:
The following isn't strictly necessary but might be useful. *~/.pulse/daemon.conf*:
default-sample-format = float32le
default-sample-rate = 48000 default-sample-format = float32le
realtime-scheduling = yes default-sample-rate = 48000
exit-idle-time = -1 realtime-scheduling = yes
exit-idle-time = -1
If you're using qjackctl as a launcher for jackd.
If you're using qjackctl as a launcher for jackd.
in settings options add a post startup script like this:
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
pactl load-module module-jack-sink channels=2; pactl load-module module-jack-source channels=2; pacmd set-default-sink jack_out