Chorus

This effect applies a copy of the sound that is detuned, or played at a frequency slightly offset from the original. Chorus is commonly used to add depth and character to a clip that contains a single instrument or voice.

Mix Specifies the balance of the original (Dry) sound with the detuned (Effect) sound. A value of 50% is commonly used.

Depth Specifies the amount of delay used to detune the audio. High values create large variations in pitch. Low values are commonly used. If you want a deeper chorus effect, start by increasing this value.

Regeneration Specifies how much echo is applied to the delay. Low values are commonly used. High values create an effect similar to the Flanger effect (see Flanger).

Rate Specifies how rapidly the effect oscillates.

Applying Effects > Audio effects included with Premiere > Chorus