Lexicon NUVERB - FOR MACINTOSH Manual page 105

NuVerb User Guide
Split Chamber
General Description
The Split Chamber effect can simulate many different types of acoustic spaces or mechanical
devices. This effect is great on anything. Sizes of 25 and larger set a lower acoustic density.
Shape and Spread help create the illusion of larger spaces while using short reverb times. As
in the Random Hall effect, the Link parameter couples the Size parameter to the reverb time
and Spread. Unlink provides a method of setting stable reverb time and Spread values, then
adjusting size to set the right density and "tuning". Split Chamber is bright by design, so you
may want to use lower values of treble decay — maybe even as low as 1.0kHz or 500Hz.
The randomization circuit in Split Chamber is designed to reduce coloration and/or frequency
nodes caused by low frequency input. If you want to create your own special Chambers or
Halls, you should keep RAND set to 90 or 95.
Typically, sizes of 14-24 meters with treble decays higher than3.4kHz will emulate bright
sounding metal plates. Remember to set the shape and spread parameters to extremely low
values to maintain the explosivness of the reverb decay. Because plates are very diffuse, any
preset mimicking a plate should have diffusion set relatively high (70-80), while the bass
multiplier is kept to some value less than 1.2kHz.
The diffusion and predelay parameters precede the reverberator. When Chamber effects are
loaded into Dual Mono mode, the audio will be Mono In-Mono Out. When loaded into
Cascade mode, audio is routed summed Mono In-Stereo Out.
Split Chamber Parameters
Split Chamber (the reverberator)
RTIM (Mid-Frequency Reverb Time)
RTIM sets the reverb time for mid-frequency signals. Because low-frequency reverb time
(BASS) is a multiplier of RTIM, RTIM acts as a master control for the reverb time.
.09 - 24.11s
Reference
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