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Convert audio to keyframes uses all audio in the comp instead of only one audio track.

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Magnus Hellmen
Convert audio to keyframes uses all audio in the comp instead of only one audio track.
on Jan 8, 2017 at 7:31:07 pm

I have dialogue from Audition for 3 animated characters in separate .wav files. After I've imported the audio tracks and selected convert audio to keyframes I do get a null object with a slider containing the key frames but for all my dialogue. It doesn't seem to matter what I have selected in the timeline. The idea is to get separate keyframes for each dialogue.

My solution was to create a separate comp with one audio track, build the keyframe track and then copy/paste it into the comp where the animating takes place. It takes a long time and seems a bad way to get it done.

What would be a better solution?


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Roei Tzoref
Re: Convert audio to keyframes uses all audio in the comp instead of only one audio track.
on Jan 14, 2017 at 1:51:20 pm

How do I go about making keyframes for only one specific .wav in a comp?
disable the audio switch for the layers you don't want to get included


Convert Audio To Keyframes Analyzes amplitude within the composition work area and creates keyframes to represent the audio. interestingly, it is not layer related, but will represent all the audio sources in your composition. you can have no layer selected and choose Animation->Keyframe assistant->convert audio to keyframes and it will include all active audio layers. so if you don't want a layer to get included, simply switch it's audio switch off.

more about it:
https://helpx.adobe.com/after-effects/using/assorted-animation-tools.html#c...

Roei Tzoref
After Effects Artist & Instructor
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Magnus Hellmen
Re: Convert audio to keyframes uses all audio in the comp instead of only one audio track.
on Jan 14, 2017 at 2:06:49 pm

Nice one, I figured it must be something like that! My solution was to place each audio clip in its own comp first.

Another interesting thing I noticed.
- I make a pre-comp containing my audio file and the key frame layer I've created.
- I then reference the key frame slider in a solid located in the parent comp, ie on the "outside" if you will.

If I now move this audio/keyframe comp on the parent comp timeline then only the audio part moves in time. They keyframes stay. So if for example I'm animating a mouth but I don't like the timing so I move the audio/keyframe comp forward on the time line, only the audio moves. So I now have a mouth blinking way ahead of the sound.

If I create the exact same setup except, the mouth solid is located inside the same comp as the keyframe layer and audio, I can move this entire package on the parent comp timeline and the mouth graphic + audio will move in time together and remain in sync.


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