The Reverb effect simulates the sound reflection in a space.  
The following sliders are available:
Reverb Time

Specifies the duration of the reverb.

Room Size

Specifies the size of the imaginary room in which the reverb is to be generated.

Brightness

Specifies the brightness of the reverb.

The following sliders are available in the Mix area:
Dry Signal

Mixes the original signal with the edited copy, indicating the intensity of the original signal.

Effect

Mixes the original signal with the edited copy, indicating the intensity of the edited signal.

 


Reverb