AfterEffects

Delay effect

The Delay effect repeats audio after a specified amount of time. This effect simulates sound bouncing off a surface, such as a wall.

To simulate the acoustic ambience of a room, use the Reverb effect.

Delay Time
Time between the original sound and its echo, in milliseconds.

Delay Amount
Volume of the first delayed audio, as a fraction of the original.

Feedback
Amount of the echo that is fed back into the delay line to create subsequent echoes.

Dry Out, Wet Out
The amounts of the original (dry) sound and delayed (wet) sound in the final output. Values of 50% are commonly used.