I'm running a debian 'testing' system: Operating System: Debian GNU/Linux 12 (bookworm) Kernel: Linux 6.1.0-7-amd64 Architecture: x86-64 Hardware Vendor: TOSHIBA Hardware Model: PORTEGE R30-A Firmware Version: Version 4.20 GNOME Shell: 43.4 I installed two audio applications for jack mixxx and guitarix, which both crash during startup with almost the same ERROR-Message: **Mixxx** *(a digital DJ system, where Wave, Ogg, FLAC and MP3 files can be mixed on a computer for use in live performances.):* mixxx: vendor/freeverb/revmodel.cpp:40: void revmodel::setrate(int): Assertion `rate <= TUNING_MAX_SAMPLE_RATE' failed. Aborted **Guitarix** *(a rock guitar amplifier for the JACK Audio Connection Kit with one input and two outputs.):* guitarix: vendor/freeverb/revmodel.cpp:40: void revmodel::setrate(int): Assertion `rate <= TUNING_MAX_SAMPLE_RATE' failed. Aborted I got jack running with 192000Hz, so I do not think the problem can be solved there: JACK compiled with System V SHM support. loading driver .. apparent rate = 192000 creating alsa driver ... hw:TR8S,0|hw:TR8S,0|256|2|192000|0|0|nomon|swmeter|-|32bit configuring for 192000Hz, period = 256 frames (1.3 ms), buffer = 2 periods ALSA: final selected sample format for capture: 32bit float little-endian ALSA: use 2 periods for capture ALSA: final selected sample format for playback: 32bit float little-endian ALSA: use 2 periods for playback Does anyone know what ***vendor/freeverb/revmodel.cpp*** is? And how I can fix this? *My first thought was that I had installed an incompatible plugin, but this does not seem to be the case.*

The problem is that when mixxx is running the audio output can't be switched to other audio from the computer and it also can't play the audio at the same time. Depending on how Mixxx is used, this can be very cumbersome as you need to quit Mixxx to play other audio and restart it afterwards if you'd like to use it again. For example, you can't take a pause of mixing music at home and watch a few videos in the browser or a movie in Kodi then go back to playing music (or just leave a set playing in the background). Another example is using Mixxx like a music player (an interactive one; especially if you use the auto-DJ feature for a playlist). I'm running mixxx on Debian11/KDE with PulseAudio.

The GUI of the program just pops up with a black screen without no content. Then the startup crashes… Running: mixxx --logLevel trace Outputs: Info [Main]: Warning: Ignoring XDG_SESSION_TYPE=wayland on Gnome. Use QT_QPA_PLATFORM=wayland to run on Wayland anyway. Info [Main]: SoundSourceProxy - SoundSource providers for file extension "aif" Info [Main]: SoundSourceProxy - 1 : "libsndfile" Info [Main]: SoundSourceProxy - SoundSource providers for file extension "aiff" Info [Main]: SoundSourceProxy - 1 : "libsndfile" Info [Main]: SoundSourceProxy - SoundSource providers for file extension "caf" Info [Main]: SoundSourceProxy - 1 : "libsndfile" Info [Main]: SoundSourceProxy - SoundSource providers for file extension "flac" Info [Main]: SoundSourceProxy - 2 : "Xiph.org libFLAC" Info [Main]: SoundSourceProxy - 1 : "libsndfile" Info [Main]: SoundSourceProxy - SoundSource providers for file extension "it" Info [Main]: SoundSourceProxy - 2 : "MODPlug" Info [Main]: SoundSourceProxy - SoundSource providers for file extension "med" Info [Main]: SoundSourceProxy - 2 : "MODPlug" Info [Main]: SoundSourceProxy - SoundSource providers for file extension "mod" Info [Main]: SoundSourceProxy - 2 : "MODPlug" Info [Main]: SoundSourceProxy - SoundSource providers for file extension "mp3" Info [Main]: SoundSourceProxy - 2 : "MAD: MPEG Audio Decoder" Info [Main]: SoundSourceProxy - SoundSource providers for file extension "ogg" Info [Main]: SoundSourceProxy - 2 : "Xiph.org OggVorbis" Info [Main]: SoundSourceProxy - 1 : "libsndfile" Info [Main]: SoundSourceProxy - SoundSource providers for file extension "okt" Info [Main]: SoundSourceProxy - 2 : "MODPlug" Info [Main]: SoundSourceProxy - SoundSource providers for file extension "opus" Info [Main]: SoundSourceProxy - 2 : "Xiph.org libopusfile" Info [Main]: SoundSourceProxy - SoundSource providers for file extension "s3m" Info [Main]: SoundSourceProxy - 2 : "MODPlug" Info [Main]: SoundSourceProxy - SoundSource providers for file extension "stm" Info [Main]: SoundSourceProxy - 2 : "MODPlug" Info [Main]: SoundSourceProxy - SoundSource providers for file extension "wav" Info [Main]: SoundSourceProxy - 1 : "libsndfile" Info [Main]: SoundSourceProxy - SoundSource providers for file extension "xm" Info [Main]: SoundSourceProxy - 2 : "MODPlug" Debug [Main]: "Mixxx" "2.2.4" "(flags: asan=0 asmlib=0 battery=1 buildtime=0 bulk=1 color=0 coreaudio=0 faad=0 ffmpeg=0 hid=1 hss1394=0 ipod=0 lilv=1 localecompare=1 macappstore=0 mad=1 mediafoundation=0 modplug=1 opengles=0 optimize=portable opus=1 perftools=0 perftools_profiler=0 profiling=0 qt_sqlite_plugin=0 qtkeychain=0 shoutcast=1 test=False tsan=0 ubsan=0 vamp=1 verbose=1 vinylcontrol=1 wv=0)" is starting... Debug [Main]: Compile time library versions: Debug [Main]: Qt: 5.15.2 Debug [Main]: libshout: 2.4.5 Debug [Main]: PortAudio: 1246720 PortAudio V19.6.0-devel, revision 396fe4b6699ae929d3a685b3ef8a7e97396139a4 Debug [Main]: RubberBand: 1.8.2 Debug [Main]: SoundTouch: 2.1.2 Debug [Main]: TagLib: 1.11.1 Debug [Main]: ChromaPrint: 1.5.0 Debug [Main]: Vorbis: Xiph.Org libVorbis 1.3.7 Debug [Main]: libsndfile: libsndfile-1.0.31 Debug [Main]: FLAC: 1.3.3 Debug [Main]: QDesktopServices::storageLocation(HomeLocation): "/home/nathanael" Debug [Main]: QDesktopServices::storageLocation(DataLocation): "/home/nathanael/.local/share/data//Mixxx" Debug [Main]: QCoreApplication::applicationDirPath() "/usr/bin" Debug [Main]: Loading resources from "/usr/share/mixxx/" Warning [Main]: Configuration file is at version "2.1.5" instead of the current 2.2.4 Info [Main]: BroadcastSettings - Found 1 profile(s) Debug [Main]: Loading resources from "/usr/share/mixxx/" Debug [Main]: Loading resources from "/usr/share/mixxx/" Debug [Main]: Loading translations for locale "de" from translations folder "/usr/share/mixxx/translations/" : success Debug [Main]: "Error: Unable to import console: no such extension" Debug [Main]: "Error: Unable to import svg: no such extension" Debug [Main]: Loading resources from "/usr/share/mixxx/" Debug [Main]: Compressor attack per frame: 0.000408163 decay per frame: 4.08163e-05 no more csLADSPA plugins lo server running on 14742 Warning: failed to load part! mixxx: src/freeverb/revmodel.cpp:37: void revmodel::setrate(int): Assertion `rate <= TUNING_MAX_SAMPLE_RATE' failed. Aborted (core dumped) Mixxx version: 2.2.4~dfsg-1 Operating System: Debian GNU/Linux bookworm/sid Kernel: Linux 5.15.0-1-686-pae Architecture: x86 Hardware Vendor: Lenovo Hardware Model: Rev 1.0 GNOME Shell: 41.1 **For all suggested solutions: *Thanks in advance!***