Jamulus
how to configure qjackctl for Jamulus output #3385
Replies: 8 comments 2 replies
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While Jamulus is running, open a terminal and type these commands Basically you need to determine what jack ports your headphone use, then connect jamulus ports to those. |
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Thanks. Unfortunately, too late for the scheduled jam session today. I
expect to get a rpi4B and a hifiberry sound card which I've used in the
past before the next scheduled jam. Shouldn't these instructions be
somewhere on the Jamulus site?
…On Mon, Sep 30, 2024 at 1:09 PM rdica ***@***.***> wrote:
While Jamulus is running, open a terminal and type these commands jack_lsp
system and jack_lsp -c.
Please paste the output of both commands. Your output should similar to
the following:
***@***.***: jack_lsp system
system:capture_1
system:capture_2
system:capture_3
system:capture_4
system:playback_1
system:playback_2
system:playback_3
system:playback_4
Basically you need to determine what jack ports your headphone use, then
connect jamulus ports to those.
In my configuration, headphones are system:playback_3 and
system:playback_4 , and Jamulus ports Jamulus:output-left and
Jamulus:output-right are connected to those ports.
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host~> jack_lsp system
system:capture_1
host:~> jack_lsp -c
system:capture_1
Jamulus:input left
Jamulus:input left
system:capture_1
Jamulus:input right
Jamulus:output left
Jamulus:output rig
…On Mon, Sep 30, 2024 at 1:09 PM rdica ***@***.***> wrote:
While Jamulus is running, open a terminal and type these commands jack_lsp
system and jack_lsp -c.
Please paste the output of both commands. Your output should similar to
the following:
***@***.***: jack_lsp system
system:capture_1
system:capture_2
system:capture_3
system:capture_4
system:playback_1
system:playback_2
system:playback_3
system:playback_4
Basically you need to determine what jack ports your headphone use, then
connect jamulus ports to those.
In my configuration, headphones are system:playback_3 and
system:playback_4 , and Jamulus ports Jamulus:output-left and
Jamulus:output-right are connected to those ports.
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You don't appear to have any system:playback ports. Those are required in order for jack to route audio to speakers or headphones. |
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It's a Lenovo X220 ThinkPad. I'm using a USB microphone (which qjackctl
recognizes) and wired headphones through the earphone port on the side.
The headphone works for conventional sources such as YouTube. Running
Linux MInt 21.3.
…On Tue, Oct 1, 2024 at 12:11 PM rdica ***@***.***> wrote:
You don't appear to have any system:playback ports. Those are required in
order for jack to route audio to speakers or headphones.
Can you detail your OS, and audio hardware?
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Audio hardware = soundcard/audio interface. I think your soundcard/audio interface isn't being used by When jack is configured with the correct hardware device, you should have at the very least Check your jack configuration and make sure it's using the correct sound hardware device. If you're using Any other audio you hear is coming from pulseaudio system which is the default, and its a different sound system for linux than jack audio. Get jack working correctly with your soundcard/audio interface first. Once you can see |
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I'm using the built-in sound. The USB microphone is correctly recognized by qjackctl and Jamulus. It could be that this arrangement isn't workable for Jamulus. This system was being used because my rpi system stopped working and I haven't received replacements yet. |
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Your mention of "The USB microphone is correctly recognized by qjackctl and Jamulus" tells me that jack is not configured to use your laptop soundcard due to the lack of In qjackctl Settings, Advanced, you can set individual Output and Input devices. Try setting Output device to your laptop soundcard. Input is likely already using your mic device. If this works you should then see |
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A quick google search of "usb mic jackd" seems to indicate you may have to set up pulseaudio-to-jack bridge and pipe the mic input from pulse out to jamulus in. This also requires that jack is configured to use your laptop soundcard device, not the microphone. |
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Yes, without the USB mic plugged in, jack_dsp system is showing capture AND
playback ports. But I'm going to close this thread. Thanks for your help
but I only wanted to use this laptop temporarily (until I can restore the
rpi system that I used for years). It seems too complicated to use this
laptop and a USB mic for Jamulus.
…On Tue, Oct 1, 2024 at 7:11 PM rdica ***@***.***> wrote:
A quick google search of "usb mic jackd" seems to indicate you may have to
set up pulseaudio-to-jack bridge and pipe the mic input from pulse out to
jamulus in. This also requires that jack is configured to use your laptop
soundcard device, not the microphone.
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I'm running Jamulus on Linux using a "snoball" USB microphone, which I can configure qjackctl to access. But I'm not getting any Jamulus sound through the earphones. Other apps work OK through the earphones. How do I configure qjackctl to direct Jamulus-generated sound to the headphones?
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