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I have a sequence in AE with several audio tracks, and I want to be able to choose one of them and enable it, disabling the others. Is it possible? How would you guys do it?
The Solo checkbox will only show that audio layer if that's what you're after.
If you want the others to stay muted, then you can simply select all the layers (Cmd + A / Ctrl + A) and then click the audio checkbox so they're all turned off, then turn on the one you want.
Also, since you're posting this in the Expressions forum, are you after an expression approach to this? If so can you elaborate more?
I need to control this with an expression. Hopefully, to control which track is enabled at the time by selecting a number with a slider.
And I need to have it this way because I want to export this sequence as an Essential Graphics.
In that case, create a Control Null, add a slider to it, and then add this expression to the Audio Levels of all the audio layers:
thisLayer.index == thisComp.layer("Null 1").effect("Audio-Selector")("Slider") ? value: [-192,-192];
This will compare the index to the layer selected. If they're equal, it will use the value you have set. If not, it will mute the layer by setting its level to -192dB.
Thank you, sir, that should do the trick.
I have a similar situation where I have multiple language tracks to a single animation. When I go to render I want the specific language track to play for the correct comp. The issue I am having is that Essenctial Graphics does not allow for changing the audio track in the nested comp. I have found you can only change the multipe tracks in the same comp and will not allow you to nest that in a master comp. Is there something I am missing? I have tried so many ways and I have found no solution. Is this someting we can bring up with Adobe to address and hopefull fix in the future.
I was experiencing the same issue with Essential Graphics and audio level control, reported it here: https://adobe-video.uservoice.com/forums/911311-after-effects/suggestions/43229589-audio-can-t-be-co...