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 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 triangular envelopes.
