A Chorus effect is a type of audio effect that creates a "thickening" or "widening" of a sound by adding multiple, slightly detuned copies of the original sound. The effect is achieved by using a delay line to create copies of the original sound, and then modulating the delay time slightly to create the sense of multiple voices or instruments playing the same thing.
Chorus effects typically have several knobs or controls that allow you to adjust the sound:
Depth: This control adjusts the amount of modulation applied to the delay time, which determines how pronounced the chorus effect will be.
Rate: This control adjusts the speed of the modulation applied to the delay time, which determines the tempo of the chorus effect.
Mix: This control adjusts the balance between the dry (unaffected) sound and the wet (affected) sound.
Feedback: This control adjusts the amount of the delayed sound that is fed back into the effect, creating a more pronounced or more subtle effect.
Wet/Dry: This control adjusts the balance between the wet and dry sound, allowing you to adjust how much of the chorus effect is heard.
LFO shape: This control adjusts the shape of the low-frequency oscillator (LFO) used to modulate the delay time, which can affect the character of the chorus.
By adjusting these knobs, you can create a wide range of different chorus effects, from subtle thickening to pronounced, warbling effects.