qjackctl

Description

QjackCtl - JACK Qt GUI Interface

need help setting up audio

Forums

AVLinux 2017
M-Audio 2496 Audiophile (older sound card, 2 in 2 out midi port

I am getting sound when I play a song from library but volume is way low.
can not hear sound from browser- like watching YouTube.

I have tried different configurations but cant seem to figure out what the heck is wrong.
If anyone can help, please let me know what info you need.

Also- how do I delete the logs? they are like a mile long at this point..

Thanks, happy Holidays!

Jack DSP performance recorder/chart

Forums

Hi,

While working on performance enhancement on RaspberryPi I am often not really sure if my activities lead to enhancements or make things worse.
To get a clear picture I would like to record DSP performance (and XRUN count). For reproducible results I would like to have

* When rolling starts: Chart/recorder is reset
* During rolling: Chart/recorder active / x-axis is time in seconds synchronized to Jack's frames.
* When rolling stops, recorder is frozen

Up to now my google search did not show up some application yet... So my questions here:

User Interface disappear

Forums

Hello.
After I've made some changes in the setup of qjackctl and started it again, the UI interface pop up for a short moment and then disappear. It's always the same when I start it again.
I think the last thing I've changed was the checkbox for "single application instance" under "misc".

Has anyone an idea to solve the problem?
Thank you.

Qjackctl 4.5.0 starts jack server but applications cannot connect to it

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My Ubuntu 16.04 just updated to Qjackctl 4.5.0 and this is what happened:
Starting Qjackctl seems to work well as it does before updating and I can see the jackdbus and it's PID running from the command line.
But Qjackctl's scripting line "read script after start: a2jmidid -e &" (or even /usr/bin/a2jmidid -e &) isn't working.
And although jackdbus is up and running, applications like patchage or audacity are not connected to it.
So, I have to shutdown Qjackctl and kill Jackdbus.

Understanding where qjackctl gets start info

Forums

HI,
I have always just used qjackctl without messing much with settings.

I actually have a rather extensive customized start on one PC where I start and stop client apps via scripts specified in the qjackctl setup dialog. It's using ffado.

But recently I've been trying to understand whats happening on another system so I started trying to figure out the underlying structure. This system is using ALSA and USB audio.

The question I currently have is:

[Support] Bug? on Jack, fail to connect JACK to server as client

Forums

Hello,
So I decided to try out Radium and it told me to run JACK, so I installed the thing, followed the readme instructions but everytime I only get the following error message:
03 JACK is starting...
14:15:51.404 jackd -S -dportaudio -r48000 -p1024
14:15:51.428 JACK was started with PID=60623696.
14:15:52.141 JACK has crashed.
14:15:53.596 Could not connect to JACK server as client. - Overall operation failed. - Unable to connect to server. Please check the messages window for more info.

QJackCtl v0.4.3.8git.584286 stops at "make"-process

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Dear Rui, sorry it is me again :-)
qjackctl-0.4.3.8git.584286 stops at the make-process with the following message:
===================================
qjackctlSetup.cpp: In member function ‘bool qjackctlSetup::parse_args(const QStringList&)’:
qjackctlSetup.cpp:582:34: error: ‘jack_get_version_string’ was not declared in this scope
.arg(jack_get_version_string());
^
make[2]: *** [.obj/qjackctlSetup.o] Fehler 1
make[2]: Verzeichnis »/home/babarosa/qjackctl-0.4.3.8git.584286/src« wird verlassen