Reverb - Roland SD-90 Effects Manual

Audio Multi-Effects
CF Depth (depth)
0 – +32 – +127
Adjusts the depth of the Chorus effect. To use it for doubling, set the value to "0".
CF Fbk (feedback)
-98 – +70 – +98 %
Determines the amount of feedback.
Increasing the value will emphasize the effect, creating a more unusual sound. (Type = Fln only)
CF Bal (balance)
D100:0W – D50:50W – D0:100W
Adjust the balance between the effect sound volume and the direct sound volume.

Reverb

Reverberation (or reverb) is the effect caused by sound waves decaying in an acoustic space, or a digital
simulation thereof. This decay occurs because sound waves bounce off many walls, ceilings, objects, etc. in a very
complex way. These reflections, coupled with absorption by various objects, dissipate the acoustic energy over a
certain period of time (called the decay time). The ear perceives this phenomenon as a continuous wash of sound.
RV SW (switch)
Off, On
Switches the reverb effect on/off.
RV Type (type)
Hall, Room, Plate
Selects the Reverb Type. Various different simulations of space are offered.
Hall: Simulates the reverberation in a concert hall.
Room: Simulates the reverberation in a small room.
Plate: Simulates plate reverberation (a reverb unit that uses the vibration of a metallic plate). Provides a metallic
sound with a distinct upper range.
RV Time (time)
0.1 – 3.0 – 10.0 sec
This parameter adjusts the duration (time) of the reverb.
RV HF (HF damp)
-10 – -3 – 0
This parameter adjusts the amount of damping for High Damp. No high-frequency damping occurs when set to
"0."
RV Bal (balance)
D100:0W – D50:50W – D0:100W
Adjust the balance between the effect sound volume and the direct sound volume.
4
(0.1 = 1)