qjackctl not working

[ggraniti]

Hello everybody! I am having this issue when I try to run qjackctl (RaspberryPi 4 4GB + latest release of JamboxOS + Behringer UPhoria UMC404HD). I am quite new to all this stuff, so it is likely I am missing something simple and banal. Can you please help me?

[kdoren]

@ggraniti jambox uses jack audio in a way that is not compatible with QjackCtl.
This simplifies operation and allows different settings for different apps automatically.
Jack settings are done in /etc/jackdrc.conf
Patching can be done in patchage (it's on the desktop).

What is it you want to change?

see: #124

[ggraniti]

@kdoren Thank you for your quick and kind reply, and for not laughing at me for such an amateurish question. Everything is clear now. I had an issue configuring the Pisound hat. By the way, do you know if it works on Jambox? I want to jam with only digital pianos routing either Fluydsynth or Pianoteq into Jamulus . So it’s not really about audio projects, but rather only midi. The Pisound seemed to me a good and compact solution together with the raspi. The UMC404HD is too big for my project, so if the Pisound doesn’t work I would rather go with a UCA222, that should work well with Jambox as far as I know.

[kdoren]

@ggraniti I have a UCA222, it works fine with jambox.

I don't have a pisound HAT so I can't test. One user reported it working, another not, I believe it requires an overlay driver enabled in /boot/config.txt: dtoverlay=pisound

You can use MIDI into QSynth (GUI for fluidsynth), then use Patchage to connect Qynth to Jamulus (required packages are in jambox-project apt repo). I haven't test it extensively, please report back your results.

MIDI synth on Raspberry Pi for jamming:

sudo apt install fluidsynth fluid-soundfont-gm qsynth

• Pi menu -> Sound & Video -> Qsynth
• Qsynth setup -> MIDI tab -> Enable MIDI input -> "Check", auto-connect MIDI inputs - > "Check"
• Qsynth setup -> Audio tab -> Auto Connect Jack outputs -> "Uncheck"
• you can change sounds in Qsynth under the "Channels" menu.
• Launch Jamulus (or other app)
• Patchage -> connect Qsynth to Jamulus In
• MIDI notes from USB should sound in Qsynth and be visible on input level meters in Jamulus.

FYI it's possible to save the patching setup with aj-snapshot, then set kamulus_start.conf or other conf file to patch when launching the app. See #3

[ggraniti]

@kdoren Thank you so much, I’ll try all this and report back, also about the pisound.

[ggraniti]

@kdoren So: I could finally verify that the Pisound IS working. It must go through and update after first installation, otherwise it doesn't allow configuration.

curl https://blokas.io/pisound/install.sh | sh
sudo apt update
sudo apt upgrade

Then, it's possible to
sudo pisound-config

After this, I can confirm that also "The button" works.

Concerning Qsynth: it apparently works well, but Patchage allows connections only if I start the qsynth engine AFTER I open Sonobus or Jamulus. Is ajsnapshot going to be any useful, then? And will autostarting Jamulus+Qsynth at any boot be complicated? I still don't know, I will do the best I can considering my very limited knowledge.

Also, any idea how to route the raspberry pi web browser audio into Jamulus or Sonobus?