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Unity Engine


Audio Chorus Effect

Reference for the Audio Chorus Effect, which processes an audio signal to create a chorus effect.
Read time 1 minuteLast updated 14 days ago

The Audio Chorus Effect takes an Audio Mixer group output and processes it creating a chorus effect.

Properties

The AudioGroup Inspector displays the configurable properties of an Audio Chorus Effect.

Property:

Function:

Dry mixVolume of original signal to pass to output. 0.0 to 1.0. Default = 0.5.
Wet mix tap 1Volume of 1st chorus tap. 0.0 to 1.0. Default = 0.5.
Wet mix tap 2Volume of 2nd chorus tap. This tap is 90 degrees out of phase of the first tap. 0.0 to 1.0. Default = 0.5.
Wet mix tap 3Volume of 3rd chorus tap. This tap is 90 degrees out of phase of the second tap. 0.0 to 1.0. Default = 0.5.
DelayThe LFO's delay in ms. 0.1 to 100.0. Default = 40.0 ms
RateThe LFO's modulation rate in Hz. 0.0 to 20.0. Default = 0.8 Hz.
DepthChorus modulation depth. 0.0 to 1.0. Default = 0.03.
FeedbackChorus feedback. Controls how much of the wet signal gets fed back into the filter's buffer. 0.0 to 1.0. Default = 0.0.

Details

The chorus effect modulates the original sound by a sinusoid low frequency oscillator (LFO). The output sounds like there are multiple sources emitting the same sound with slight variations - resembling a choir.
You can tweak the chorus filter to create a flanger effect by lowering the feedback and decreasing the delay, as the flanger is a variant of the chorus.
Creating a simple, dry echo is done by setting Rate and Depth to 0 and tweaking the mixes and Delay