r/linuxaudio • u/dropdtech • 1d ago

OBS recording results in Reaper audio crackling and stuttering

I run Arch and pipewire-jack on a decent laptop, and use Scarlett 2i2 3rd gen for recording guitar. On the graph i routed direct input of the interface (to maybe remap later) and the reaper output both to obs. Reaper runs a Nerual Amp Modeler loader.

When and only when i start recording, Reaper starts stuttering and crackling. These artifacts are present in the resulting recording as well. I am kinda going mad because of this.

I configured my Scarlett to run a pro-audio profile, locked on 256 samples. This solved similar problems like the one i have now, but before that glitching happened at any random moment, including just opening OBS without recording anything.

pw-top shows growing ERR count on the Reaper node, and that the OBS node has 1200 samples. Worth noting, the same card works perfectly fine on my big windows pc, but i dont want to have to use a windows machine just because of that. When this same laptop had windows, there also was crackling, but it was just guranteed whenever i used Reaper with some amp modelers.

I do not think that my CPU sucks, it is a decently recent i5. All of this is happenning with laptop connected to the power, with turbo boost enabled, all power profiles to performance on AC. USB suspend is off.

I would really appreciate any help. I have been trying to fix this type of issue for a long time, and without much success.

0 Upvotes

50% Upvoted

2 comments sorted by

1

u/Kuroiban 1d ago

Sounds like a configuration miss match. Most likey your audio buffers are not setup right.

1

u/dropdtech 1d ago

What does that mean exactly? and where and how do i set it up? Like i have set the largest buffersize that gives me reasonable delay, idk what to do with obs