class FMOD::Effects::Echo

This unit produces an echo on the sound and fades out at the desired rate.

@note Every time the delay is changed, the plugin re-allocates the echo

buffer. This means the echo will disappear at that time while it refills
its new buffer.

Larger echo delays result in larger amounts of memory allocated.

@attr delay [Float] Echo delay in ms.

* *Minimum:* 10.0
* *Maximum:* 5000.0
* *Default:* 500.0

@attr feedback [Float] Echo decay per delay.

* *Minimum:* 0.0 (total decay)
* *Maximum:* 100.0 (no decay)
* *Default:* 50.0

@attr dry_level [Float] Original sound volume in dB.

* *Minimum:* -80.0
* *Maximum:* 10.0
* *Default:* 0.0

@attr wet_level [Float] Volume of echo signal to pass to output in dB.

* *Minimum:* -80.0
* *Maximum:* 10.0
* *Default:* 0.0