# Return sound effect AudioEcho
AudioEcho repeats the sound after a given delay (determined by the delay attribute), and attenuates the repeated sound according to the decay rate (determined by the decay attribute).
# Attributes
| Properties | Features |
|---|---|
| delay | Echo delay, in ms. Range [0, ∞). The default value is 500. |
| decay | The echo decay rate for each delay. Range [0, 1]. Value 1: indicates no attenuation, value 0: indicates complete attenuation. The default value is 0.5. |
| dryMix | The amount of echo signal output. Range [0, 1]. The default value is 1. |
| wetMix | Raw semaphore output. Range [0, 1]. The default value is 1. |