3-9
Algorithms and Parameters
PCM 91
THE DUAL REVERB
ALGORITHMS
THE REVERB BLOCKS
Chamber
This algorithm (described earlier and
repeated for completeness) produces an
even, dimensionless reverberation, with little
change in color as the sound decays. The
initial diffusion is similar to the Concert Hall
algorithm, but the sense of size and space is
much less obvious. This characteristic, along
with low color in the decay tail, makes
Chamber useful on a wide range of program
material. It is especially useful on spoken
voice, giving a noticeable increase in
loudness with very low color.
Inverse
This effect allows you to vary the slope of
The initial portion of the reverb envelope.
The slope can decay, remain level, or rise
over a variable time interval. When the time
interval is up, the reverberation cuts off
abruptly, resulting in an effect similar to a
gate, but not dependent on the level or
complexity of the input signal. Slopes are
adjustable over negative, even, or positive
slopes. Positive slopes create inverse effects,
while more even slopes create gated effects.
Negative slope values have rather natural
reverb tails.
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