I am running Jamulus OS from hard disk ok, but am having issues with jack and Jamulus. Using the suggested settings for Jamulus, jack gives countless Xruns, making audio impossible to listen to (cracks, pops, dropouts). If i increase the frames/period setting from 128 to 1024 i have clear audio but a delay time within jamulus of 70mS or more making it unusable. I started using jamulus last summer, running with Ubuntu Studio and did not have this problem.....any ideas?? The hardware test option within Jamulus os gives my network and audio settings a clean result.
example error message:
ERROR: JackAudioDriver::ProcessGraphAsyncMaster: Process error
Fri Apr 2 10:37:24 2021: ERROR: JackEngine::XRun: client = PulseAudio JACK Sink was not finished, state = Triggered
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It seems Pulseaudio is causing the error message. If you haven't got a modern PC then you should consider the following :
Extract from WIKI:
Audio optimisation
If you don't use pulseaudio to grab audio from web explorer like firefox or other pulseaudio capable applications, please don't activate the pulseaudio bridge in Ubuntu studio controls as it can take CPU even if you don't use it.
If you have a simple setup with Jamulus, you will not need pulseaudio bridge, so don't activate it (click on "remove input bridge" et "remove output bridge" buttons if any in Pulse Bridging tab and then click "Apply audio settings" | all in Ubuntu Studio Controls)
Close all applications that you don't need especially web browser which can take a lot of CPU/RAM ... So it can slower your computer if you have not enough resources !
BR,
Laurent
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Hi Laurent, my pc is only about 4 years old (quad core cpu 8gig ram). I
tried your suggestion, no change. Like I said originally, on previous
versions of Jamulus, I didn't suffer this problem and the hardware hasn't
changed.
It seems Pulseaudio is causing the error message. If you haven't got a
modern PC then you should consider the following :
Extract from WIKI:
Audio optimisation
If you don't use pulseaudio to grab audio from web explorer like firefox
or other pulseaudio capable applications, please don't activate the
pulseaudio bridge in Ubuntu studio controls as it can take CPU even if you
don't use it.
If you have a simple setup with Jamulus, you will not need pulseaudio
bridge, so don't activate it (click on "remove input bridge" et "remove
output bridge" buttons if any in Pulse Bridging tab and then click "Apply
audio settings" | all in Ubuntu Studio Controls)
Close all applications that you don't need especially web browser which
can take a lot of CPU/RAM ... So it can slower your computer if you have
not enough resources !
if using ubuntu studio controls doesn't work for you , then please try the following command lines to deactivate pulseaudio bridge with jack (CTRL+ALT+t to open a terminal):
The error message about pulseaudio that you show me should disappear. I attached some screenshot of qjackctl (Graphe button) on my setup so you can see what appear or disappear when pulse bridge is active/inactive.
This kind of problem can appear when:
- the CPU is too high
- realtime permissions (in ubuntu studio controls) is not initialized. (A visible red message appears when it is the case).
Hi Laurent, many thanks for your suggestions, but I am still suffering the
same issues. I am considering a hardware issue here and do have an
alternate motherboard that I can try.
if using ubuntu studio controls doesn't work for you , then please try the
following command lines to deactivate pulseaudio bridge with jack
(CTRL+ALT+t to open a terminal):
The error message about pulseaudio that you show me should disappear. I
attached some screenshot of qjackctl (Graphe button) on my setup so you can
see what appear or disappear when pulse bridge is active/inactive.
This kind of problem can appear when:
- the CPU is too high
- realtime permissions (in ubuntu studio controls) is not initialized. (A
visible red message appears when it is the case).
Advice please on this subject:
I am running Jamulus OS from hard disk ok, but am having issues with jack and Jamulus. Using the suggested settings for Jamulus, jack gives countless Xruns, making audio impossible to listen to (cracks, pops, dropouts). If i increase the frames/period setting from 128 to 1024 i have clear audio but a delay time within jamulus of 70mS or more making it unusable. I started using jamulus last summer, running with Ubuntu Studio and did not have this problem.....any ideas?? The hardware test option within Jamulus os gives my network and audio settings a clean result.
example error message:
ERROR: JackAudioDriver::ProcessGraphAsyncMaster: Process error
Fri Apr 2 10:37:24 2021: ERROR: JackEngine::XRun: client = PulseAudio JACK Sink was not finished, state = Triggered
Hello Rick,
It seems Pulseaudio is causing the error message. If you haven't got a modern PC then you should consider the following :
Extract from WIKI:
Audio optimisation
If you don't use pulseaudio to grab audio from web explorer like firefox or other pulseaudio capable applications, please don't activate the pulseaudio bridge in Ubuntu studio controls as it can take CPU even if you don't use it.
If you have a simple setup with Jamulus, you will not need pulseaudio bridge, so don't activate it (click on "remove input bridge" et "remove output bridge" buttons if any in Pulse Bridging tab and then click "Apply audio settings" | all in Ubuntu Studio Controls)
Close all applications that you don't need especially web browser which can take a lot of CPU/RAM ... So it can slower your computer if you have not enough resources !
BR,
Laurent
Hi Laurent, my pc is only about 4 years old (quad core cpu 8gig ram). I
tried your suggestion, no change. Like I said originally, on previous
versions of Jamulus, I didn't suffer this problem and the hardware hasn't
changed.
Regards, Rick.
On Fri, 2 Apr 2021, 10:47 Laurent Schwartz, eleandar@users.sourceforge.net
wrote:
if using ubuntu studio controls doesn't work for you , then please try the following command lines to deactivate pulseaudio bridge with jack (CTRL+ALT+t to open a terminal):
pactl unload-module module-jack-sink;pactl unload-module module-jack-source;The error message about pulseaudio that you show me should disappear. I attached some screenshot of qjackctl (Graphe button) on my setup so you can see what appear or disappear when pulse bridge is active/inactive.
This kind of problem can appear when:
- the CPU is too high
- realtime permissions (in ubuntu studio controls) is not initialized. (A visible red message appears when it is the case).
Beware that using pulseaudio with jack is not recommended ( https://jackaudio.org/faq/pulseaudio_and_jack.html ) and often causes this kind of problems ...
To reactivate pulseaudio bridge with jack after your testing or you can use ubuntu studio controls as well:
pactl load-module module-jack-sink channels=2;pactl load-module module-jack-source channels=2;BR,
Laurent
Hi Laurent, many thanks for your suggestions, but I am still suffering the
same issues. I am considering a hardware issue here and do have an
alternate motherboard that I can try.
Regards, Rick.
On Fri, 2 Apr 2021, 18:10 Laurent Schwartz, eleandar@users.sourceforge.net
wrote:
Sorry to insist but how can you have an error message about pulseaudio in jack if pulseaudio bridge is not activated ? (I don't understand).
Quite, this is what is puzzling me. I will carry out some further tests.
On Sat, 3 Apr 2021, 18:22 Laurent Schwartz, eleandar@users.sourceforge.net
wrote: