Feedback chorus built from basic elements.
The chorus effect is very similar to the flanger effect and is achieved by mixing the audio signal with a time-varying
delayed version of itself. The effect can be enhanced by "feeding back" the output of the delay (combined with the audio
input via a linear mixer) into its own input.The Controllable Variable Delay block implements the time-varying delay. This
block has, in addition to the audio input, a control input (red) which is driven by a modulating control oscillator (the Combo
Control Generator block). Experiment with the control modulater settings to explore the behaviour of the chorus.
Typically, a chorus will have delay lengths of 20--50 milliseconds, modulated by sinusoidal or sawtooth envelopes.
