SoundCraft Vi1 User Manual page 202

Ambience Reverb - Stereo
Ambience is used to simulate the effect of a small or medium sized room without noticeable decay. It is
often used for voice, guitar or percussion.
Gated Reverb - Mono In/Stereo Out
Gated reverb is created by feeding a reverb, such as a metal plate, through a gate device. Decay Time
is set to instant, while Hold Time varies duration and sound. The Gated reverb provides a fairly constant
sound with no decay until the reverb is cut off abruptly. This program works well on percussion - particularly
on snare and toms.
Reverse Reverb - Mono In/Stereo Out
Reverse reverb works in the opposite fashion from normal reverb. Whereas a normal reverb has the loudest
series of reflections heard first that then become quieter over time, the Reverse reverb has the softest
reflections (essentially the tail of the reverb) heard first, and then grows louder over time until they abruptly
cut off.
Spring Reverb - Mono In/Stereo Out
A Spring reverb is created by a pair of piezoelectric crystals—one acting as a speaker and the other
acting as a microphone—connected by a simple set of springs. The characteristic 'boing' of a spring is an
important component of many classic rock and rockabilly guitar sounds.
Reverb Controls
Pre Delay
Creates an additional 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. However, 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.
Mid RT
Controls 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 reverb times and should be used when a smaller apparent space or a more subtle effect is
desired.
Size
Size sets the 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 approximate
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.
Diffusion
Controls the 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
flat walls cause low diffusion. For drums and percussion, try using higher Diffusion settings.
Page 20 - 12 Soundcraft Vi1™ User Guide Issue 0810