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Link audio to opacity effect of an image in After Effects

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Rafat Rifaie
Link audio to opacity effect of an image in After Effects
on Feb 25, 2017 at 4:26:25 pm

I have 3 audio files from a podcast. 1 file from Steve, one from john, and the other is from me.

I have a composition with the three audio files and also 3 png images of our faces, one for each of our faces. Each image has an opacity keyframe set to 50% by default. Now i want to connect each audio track to the right image and animate as follows:

✖ When audio intensity of a track is more than x decibels then gradually animate the image that's linked to that track from 50% opacity to 100% opacity`. To give the
visual effect of who is currently talking
.

✖ When the sound intensity drops below the x decibels i have set before, then gradually animate the opacity back to 50%

How can i achieve that?


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Dave LaRonde
Re: Link audio to opacity effect of an image in After Effects
on Feb 25, 2017 at 6:05:43 pm

By hand. The problem: pauses in speech. AE can't tell through an expression whether a speaker is pausing for effect, taking a breath or is actually done talking for a while.

Dave LaRonde
Promotion Producer
KGAN (CBS) & KFXA (Fox) Cedar Rapids, IA


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