Quick Tip: Converting Audio to Keyframes

Hey everyone, I haven't posted anything in quite a while now but here's a new quick tip: the feature Converting Audio to Keyframes.

Converting Audio to Keyframes basically extracts the amplitude from the left, right, and stereo channles of an audio layer and renders it as numerical values on a slider in a null object. Using these numerical values on a parameter in another effect can create a link between the audio amplitude and the effect's parameter.

For example, linking the value in the stereo channel in the audio interpretation to the opacity of a solid and make the solid blink every time the audio's amplitude magnifies. If there is a strong bass kick in an audio layer that converts to the numerical value of 12.5, it may, for example, translate to the opacity level of 84%. However there are so many other possibilities with this feature. For instance you can also link it to the particles/second parameter in Trapcode Particular to have the amount of particles coming out to be based on the audio amplitude.

Here is a music video that demonstrates the usage of this feature. (notice how the scale of the video changes as a strong beat comes in)

To convert the audio to keyframes, simply right-click an audio layer and go to Keyframe Assistant > Convert Audio to Keyframes.

I will post an example of what I did with this feature soon.