LinuxMusicians

Moin erlkönig , Thank you for your suggestion. As jack and pulse sit on top of alsa, i would try to do the tests without them, just with alsa. Ok, I will try to reproduce the crackling with just ALSA. Or does it exclusively occur with audio from youtube? Now I had the digital crackling with the test...

Hi Impostor Thank you for your reply! That's suspiciously regular distortion. Exactly 20 times per 400Hz period, you get a sample value of 0. And these are in sync with the 400Hz zero crossing! Did you choose 400 Hz arbitrarily? Given the correlation between distortion and signal I'd suspect the aud...

Hi bluebell thanks for clarification. D-Bus is just a communication line to start/stop jackd. This should not have any effect regarding crackling. and just as I was reading that, the digital crackling started again and did not stopp. The D-Bus interface settings were activated. So as you say, it has...

ok, I have reactivated the "Enable D-Bus interface" and "Enable Jack D-Bus interface" via QjackCtrl and the digital crackling has reappeared and disappeared again on its own. I.e. this setting has some influence on the digital crackling. And at the moment the digital crackling se...

btw, these are the Audacity audio settings to record the 400Hz sine wave played from a YT video to the Pulse audio jack sink:

right after I wrote my last post (while listening to the 400Hz sine wave) the digital crackling started again - and this time it didn't stop! I had previously disabled "Enable D-Bus interface" and "Enable Jack D-Bus interface" via QjackCtrl. Screenshot from 2024-03-17 00-23-01.pn...

Hi bluebell That is very interesting. After I set the auto-suspense flag for USB to -1, I can lock my laptop and the USB devices do not shut down. Which was to be expected. So far, locking my laptop has reproducible led to the digital crackling. This no longer happens. Another lesson learned. I also...

Hi tseaver and d.healey , thanks for your fast replies :D I'd first try to isolate the problem by plugging the audio interface directly into a USB 2.0 (or 3.0) port on the laptop. I have already done this and it has made no difference. It doesn't matter whether I connect the audio interfaces to the ...

Dear Linuxmusicians community, I am almost desperate. Maybe (hopefully) you can help me? I have various USB 2.0 audio interfaces (MOTU, Focusrite) connected to my five-year-old HP ZBook Studio G5 laptop via an i-tec 5K Thunderbolt docking station. The laptop is running manjaro GNOME with Linux Kerne...

Hi all, I am responding to my own post and sharing my little journey with you. I just stumbled across this thread again, hoping to find a solution to my problems with my MOTU 16A connected via USB in vendor mode to my Manjaro Linux machine, which uses the Drumfix kernel patch and driver. Just for th...

Hi all, I just stumbled across this thread again, hoping to find a solution to my problems with my MOTU 16A connected via USB in vendor mode to my Manjaro Linux machine, which uses the Drumfix kernel patch and driver. First of all, thank you very much for the extremely valuable work and this super i...

My main issue occurred when I needed to extend the input channels to 16 and we chose an Octopre for this - the problem is that the audio signal from the Octopre doesn't get to the 18i8, so I can be able to use the same simple arecord command and get the signal from all the 16 input channels. The ha...