Audio File Delay in Summed Track Stack Only

[yeroc]

So this is bizarre-

I have a project with summed track stacks containing audio stems (All drums, all bass, all music etc). Deep into mixing this project I noticed that one of the audio tracks in the music stack is ever so slightly off timing wise. It’s super obvious because it’s the first note that plays in the song, a super precise transient.

Can confirm this by moving the stem outside of the track stack and the timing is fixed.

The location of the audio file doesn’t change on the timeline, it’s the same stereo track and waveform whether it’s in the stack or on its own.

What’s weirder is if I go back to a previous project alternative, the audio file timing is fine inside the track stack.

Don’t want to place the audio file outside of the stack as I want it to interact with the stack automation, compression, etc.

Id like to use this current alternative, instead of having to go back- was deep into editing vocals on this version. Didn’t even touch the music stems…?

I’ve tried disabling and enabling core audio, etc in the settings but his doesn’t fix the issue.

Any ideas? Thanks for any help!

[yeroc]

I found the culprit- Using Wavesfactory TrackSpacer Version: 2.5.10 sidechained to a bus is causing the initial latency. Only when I remove TrackSpacer entirely from the summed stack (not just disable it), the latency goes away. This is weird to me simply because I've never run into it on any of my projects before, especially this one with many alternates and iterations.

Seems the solution for me is to just make and use a different track stack using TrackSpacer differently.

FWIW I'm using Logic 10.6.2 . Seems like this buggy behavior of latency from sidechaining to a bus might have been solved with 10.6.3

https://www.reddit.com/r/Logic_Studio/c ... _to_a_bus/

EDIT: Haha okay perfect now it works intermittently with sidechaining a bus. Oh well.

[Hugh Robjohns]

Weird... but well done for finding it!