Art DMV Pro User Manual page 38

Length: Sets the length of the gated reverb, from 50 to 500 milliseconds.
Motion: Sets the movement of the reverberation tail. This control is used to help make long decay times sound
more natural. When turned on, this control's range is from 1 to 9 and is normally set at 1, producing a very
subtle effect. A setting of OFF turns this control off. You can increase Motion if long Decay times sound
periodic. However, at high settings, a perceived 'wobbling' in the reverb tail may be noticed on some
instruments. Use care in applying this parameter.
Predelay: Sets the amount of delay that occurs before the reverberator. It can be adjusted from 0 to 255 milliseconds
in 1-millisecond steps. Predelay is primarily used to maintain intelligibility by moving the start time of the
reverberant sound in relation to the dry signal. Typical predelay values are from 0 to 35 milliseconds.
Increasing this parameter adds apparent depth to the image, up to the point where it becomes an obvious
slap delay/reverb effect at 255 milliseconds.
Shape: Controls extra early-reflection delays that are used to modify the reverb envelope's contour. This
parameter has 32 positions that range from short delay times with a forward envelope, to long delay times
with a reverse envelope. Use low Shape settings to modify the initial attack envelope. With settings from 7
to 23, the attack envelope stays constant, but spreads out in time. Settings above 23 create longer delays
and a reverse slap.
Use this control to further shape the front-end of your hall or to create distant echo effects. Normally you
should set Predelay, Size, Diffusion, Decay, and Depth before you adjust Shape since its added delays
are not part of the main reverberator and should only be used for auxiliary reflections and special effects.
Size: Sets the overall size of the reverberant space, from 15 to 150 feet. This single control affects multiple
components of the algorithm and should be adjusted first when building a totally new reverb sound. It also
has a greater effect on the perceived acoustic space than any other parameter.
Large Size settings create bigger spaces, longer delays between reflections, lower running echo density,
and lower tonal coloration. Small Size settings simulate tighter spaces that are smooth with a high echo
density. Small Sizes should only be used in conjunction with short decay time settings or they may
sound tonal or metallic. When building a new sound, a value of 75 is a good starting point.
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