Global sound switch in After Effects?

Question

Hi there,

I'm having a problem in After Effects where there is a sound artefact in my comp that I cannot locate the source of. Every layer has sound turned off, yet there are a couple of intances where sound plays where there is no sound! I've gone through every layer and tried to determine the source of the artefact and even moved each layer away from the play head so there is nothing where the play head is sitting. Still no luck, the sound is coming from somewhere and driving me insane. I was wondering if there is a global sound switch in After Effects that turns off all sound in a comp, overriding the sound switch on each and every layer (which are all turned off anyway)?

Thanks so much,

Maja

Rick Gerard · Answer

If the Dynamic Link comp is complex and takes longer than about one or two seconds a frame, I would strongly suggest that you render it and replace the clip in the Premiere Pro timeline. Rendering a nested AE comp in Premiere Pro opens a background copy of After Effects and uses that to render the clip. Rendering a linked comp in Premiere Pro will always be much slower than rendering the comp with the Render Queue. BG renders are also more susceptible to running out of system resources, GPU render failures and other problems.

I suspect that you have either missed a nested layer with an audio track or that you have a stray audio track in Premiere Pro. It could also be a Premiere Pro cache problem.

You can quickly find all layers with audio in any AE timeline by selecting none of them and pressing the 'L' key twice. Waveforms will pop up, and they are very easy to spot.

There is one more option. Select every layer in the main comp, pre-compose, then run the audio levels (L) to -192 DB

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