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After Effects Opacity Reacting to Bass Audio
Well i’ve started a music channel on YouTube where i make videos about.. well basically its an audio spectrum reacting to music. But i would like to add a flashing light effects where the flashing only happens when a bass sound is played. All i need is an expression for that to happen, I know how to do the rest. If you could even make a tutorial on youtube and link me to it that would be even better but if I get the expression I’m sure i’ll be able to do the rest
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5 Replies
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The trickiest bit might be isolating the bass, for which I would recommend Sound Keys from Red Giant. Or, if you already have that solved, this might help:
https://motionscript.com/design-guide/audio-trigger.html
Dan
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I have already isolated the bass using Sound Keys, but I want to make the opacity react to it. I tried the expression but it keeps showing “After Effects warning: Class ‘Number’ has no property or method name ‘0’
Expression disabled.Error occurred at line 7.
Comp: ‘Audio Spectrum’
Layer: 10 (‘White Solid 2’)
Property: ‘Opacity’Here’s an example of what i want..
https://youtu.be/10YQXTQZolI?t=10Some contents or functionalities here are not available due to your cookie preferences!This happens because the functionality/content marked as “Google Youtube” uses cookies that you choosed to keep disabled. In order to view this content or use this functionality, please enable cookies: click here to open your cookie preferences.
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The expression needs to be modified for whatever property you want to control with it. As written, it will create a wobble when applied to the Scale property.
Dan
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Oh.. Well i’m not no expert at this stuff.. so I wouldn’t know how to do this.. If you could show me that would be great if you don’t mind. But it’s ok if you can’t thanks anyway!
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If you were doing it with keyframes, how would you do it?
Dan
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