mismatch between JACK and Pulse sample rate
Posted: Sat Jul 11, 2020 6:40 am
Until recently, I had an issue where the "switch master" function in JACK (to change the hardware setup, such as sample rate or device) would lose the connection to Pulseaudio bridge. I had to stop and restart the bridge (not pulse itself, just the bridge) to get the JACK connections reestablished.
Then, recently some update (btw, I'm using KXStudio on KDE Neon) fixed this. Switch master retained the pulse connections.
But now, when I switched sample rate from 44.1kHz to 48kHz (or reverse), the audio hardware switched while pulseaudio stayed the same. Thus, Mumble or Jitsi using pulseaudio were getting strange pitch shifts with the different input sample rate being played back at the other rate. So, with hardware at 44.1 and pulse at 48, I heard lower-pitched output sounds from pulse sources while other people heard higher-pitched sound from my input.
I can get them matched by stopping and starting the pulse bridge when changing the sample rate.
Any idea where in this I should report the issue? Is it in JACK itself?
Then, recently some update (btw, I'm using KXStudio on KDE Neon) fixed this. Switch master retained the pulse connections.
But now, when I switched sample rate from 44.1kHz to 48kHz (or reverse), the audio hardware switched while pulseaudio stayed the same. Thus, Mumble or Jitsi using pulseaudio were getting strange pitch shifts with the different input sample rate being played back at the other rate. So, with hardware at 44.1 and pulse at 48, I heard lower-pitched output sounds from pulse sources while other people heard higher-pitched sound from my input.
I can get them matched by stopping and starting the pulse bridge when changing the sample rate.
Any idea where in this I should report the issue? Is it in JACK itself?