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The Reverb effect simulates how sound reverberates in acoustic spaces like a concert hall or room.

Effect Variation - The type of reverb.  Hall 1, 2, 3, Room 1, 2, 3, Plate, and Spring 1, 2, 3.

Predelay - An additional amount of time the reverb is delayed.  Normally set to zero.

Decay Time - The time it takes for the reverb tail to drop below -60 dB.

Room Size - The size of the room.  It also effects the decay time.

EQ - The amount of boost or cut to the low and high frequency bands.  Normally you would want to cut the low frequencies some so they don't overpower the reverb.

Modulation - The amount the delays are modulated.  This adds a natural, dynamic quality to the reverb.  For Hall and Room only.

Damp Low Freqs. - Controls how fast the low frequencies decay.  For Plate and Spring only.

Damp High Freqs. - Controls how fast the high frequencies decay.

Diffusion  - The amount of diffusion.  Lower settings make the early reflections more pronounced, while higher settings smooth out the reverb.

Stereo Spread - The width of the stereo image.  Negative numbers swap the left and right outputs.

Dry/Wet - The balance between the dry and wet signals.

Spring - Controls how "springy" the Spring reverb sounds.


A plate reverb is a large metal plate with two or more transducers on it.  It's normally only found in studios.  A spring reverb is a small metal box (tank) with two or three springs inside.  Each spring has a transducer at both ends that converts the electrical energy to mechanical energy, then back to electrical energy.  It's found in some guitar amps and organs.