This sketch demonstrates how to use the enableEffect(AudioEffect) method of an Effectable class. The class used here is AudioPlayer, but you can also enable effects on AudioInput, AudioOutput, and AudioSample objects. This sketch adds a low pass filter to the player which it then disables. You can enable the filter by pressing any key. Enabling an effect means it will be included in effect processing when the Effectable you added it to processes a buffer of samples.

Source code: enableEffect waveform

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