Pre Delay Range Low Range High
Adjust time delay
between the source
signal and the onset of
reverberation.
This control is not intended to precisely mimic the time
delays in natural spaces, as the build-up of reverberation
is gradual, and the initial time gap is usually relatively
short. For the most natural effect, the Pre Delay values
should be set in the range of 10-25 milliseconds. How-
ever, if a mix is very busy or overly cluttered, increasing
the Pre Delay time may help clarify it, and set each
instrument apart from each other.
0mS 100 / 200mS
Reverb Time
Adjust the amount of
time the reverb can be
heard.
Higher settings increase reverberation times which are
usually associated with larger acoustical environments,
but can decrease intelligibility. Lower settings shorten re-
verb times and should be used when a smaller apparent
space or a more subtle effect is desired.
Dependant
on algorithm.
Dependant on
algorithm.
Size
Build-up rate of diffusion
after the initial period
(which is controlled by
Diffusion).
The Size control changes reverb sound from very large
to very small. Generally, set this control to the approx-
imate size of the acoustic space being created, before
adjusting anything else. The size in meters is roughly
equal to the longest dimension of the space. Audio is
temporarily muted when Size is changed.
Dependant
on algorithm.
Dependant on
algorithm.
Diffusion
Initial echo density.
High settings of Diffusion result in high initial echo
density, and low settings cause low initial density. In a
real-world situation, irregular walls cause high diffusion,
while large at walls cause low diffusion. For drums and
percussion, try using higher Diffusion settings.
Dependant
on algorithm.
Dependant on
algorithm.
Shape
Adjust the 'contour'
of the reverberation
envelope.
With Shape all the way down, reverberation builds
explosively, and decays quickly. As Shape is advanced,
reverberation builds up more slowly and sustains for the
time set by Spread. With Shape in the middle, the build-
up and sustain of the reverberation envelope emulates
a large concert hall (assuming that Spread is at least
halfway up, and that Size is 30 meters or larger).
Dependant
on algorithm.
Dependant on
algorithm.
Vi3000 USER MANUAL
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