This sketch demonstrates how to use the isEnabled(AudioEffect) method of an Effectable class. The class used here is AudioPlayer, but you can use this method on AudioInput, AudioOutput, and AudioSample objects. This sketch adds a low pass filter to the player. You can enable the filter by pressing 'e' and disable it by pressing 'd'. The text on the screen will inform you if the filter is enabled or not (and so will your ears).

Source code: isEnabled waveform

Built with Processing