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Chapter 11. Standard Effects in Action > Using the Audio Waveform Effect

Using the Audio Waveform Effect

The Audio Waveform and Audio Spectrum effects are interesting variations of compound effects. In these cases, the layer containing the effect refers to an audio layer as the effect source. The result creates interesting graphical elements, based on audio elements. To be perfectly clear: these are render effects—not audio effects—and must be applied to image layers.

You assign the audio layer just as you would the source for any other compound effect. That means you must abide by similar restrictions. Namely, the effect refers directly to the audio layer, before any other audio effects are applied. If you need to treat the audio layer beforehand, you must do it in another composition. The nested composition can serve as the effect source. See "Using Compound Effects," in Chapter 10.


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