Feedback Chorus Built From Scratch

What it does

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.

Effects used

Controllable Variable Delay Linear Mixer (2-in) ×2 Combo LFO (A)

6 blocks 7 connections

In WaveWarp, 1998

How the original documented it

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.

Components used (1998)

Controllable Variable DelayLinear MixerOutput Single-Mono WAVE DriverInput WAV fileLinear MixerCombo Control Generator (A)