#11711·obs-studio

Sidechain on VLC is Delayed

Author: ABoredBunnyCreated Jan 9, 2025Updated Sep 12, 2026
Labelsissue/confirmed

Operating System Info

Other

Other OS

Pop! OS 22.04, Fedora 40

OBS Studio Version

Other

OBS Studio Version (Other)

30.2.3, 30.2.2

OBS Studio Log URL

https://obsproject.com/logs/oRs9IULk06NSseIM

OBS Studio Crash Log URL

No response

Expected Behavior

The compressor set to sidechain should react at the same speed, as one applied on Desktop Audio.

Current Behavior

The sidechain happens like a second later making it unusable for it's purpose

Steps to Reproduce

  1. Create VLC Video Source
  2. Add music files to playlist
  3. Add Compressor to VLC Video Source
  4. Set Sidechain/Ducking Source to Mic/Aux
  5. Setup the Compressor, as an example: 20:1 Ratio, -60 Thresh, 1 ms Attack, 500 Release
  6. Record it when talking into the Mic the volume gets lowered way too late ... Optional: Use the same settings on Desktop audio, play audio through source of choice, pan both. It's very noticeable.

Anything else we should know?

I tested this on my PC running Pop!, a Modded PS4 running Fedora 40. And someone talked about it on Reddit 7 Months ago on a M3 Max "Sidechaining compression is very slow/laggy"