[ubuntu-studio-devel] Ubuntu Studio on Gnome (23.04)

[Ross Gammon]

Hi All,

As you may remember, one of my machines runs plain Ubuntu, has a spare 
USB Audio device plugged in, and I have been testing Ubuntu Studio on 
top of Gnome (ubuntustudio-installer did this for me several releases ago).

Last night I upgraded to 23.04 and as expected, saw that Studio Controls 
was removed. Running ubuntustudio-installer to install 
ubuntustudio-pulseaudio-config failed. To try and understand what might 
have gone wrong, I tried to install us-pulse*-config on the command 
line. It (apt) was going to remove ubuntu-desktop which I thought was a 
bad idea and said "no":

~$ sudo apt install ubuntustudio-pulseaudio-config
...
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following packages were automatically installed and are no longer 
required:
   libwireplumber-0.4-0 qpwgraph
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
   libasound2-plugins libpulsedsp pavucontrol pipewire-media-session 
pulseaudio
   pulseaudio-module-bluetooth pulseaudio-module-jack pulseaudio-utils
   python3-alsaaudio python3-cffi python3-jack-client python3-pycparser
   studio-controls zita-njbridge
Suggested packages:
   pavumeter paprefs
The following packages will be REMOVED:
   pipewire-alsa pipewire-audio pipewire-jack pipewire-pulse ubuntu-desktop
   ubuntu-desktop-minimal ubuntustudio-pipewire-config wireplumber
The following NEW packages will be installed:
   libasound2-plugins libpulsedsp pavucontrol pipewire-media-session 
pulseaudio
   pulseaudio-module-bluetooth pulseaudio-module-jack pulseaudio-utils
   python3-alsaaudio python3-cffi python3-jack-client python3-pycparser
   studio-controls ubuntustudio-pulseaudio-config zita-njbridge
0 upgraded, 15 newly installed, 8 to remove and 0 not upgraded.
Need to get 142 kB/1,906 kB of archives.
After this operation, 8,530 kB of additional disk space will be used.
Do you want to continue? [Y/n]

I have not looked into the dependencies to see if there is a way to 
untangle this. Instead, I was wondering if it was worth playing with the 
pipewire setup. It is a test setup after all! Does anyone know of any 
good guidance on the workflows in this set up? What would I use to help 
all of the routing between pipewire, jack, and how to use 
Ardour/Hydrogen/Carla etc.?

 From the packages listed for removal above, I assume that wireplumber 
in the answer?

I did see some discussion on LAD, but I was hoping for some blog with 
easy instructions, screenshots etc. :-)

Cheers,

Ross