Alesis QuadraSynth Plus Car Speaker User Manual


 
Editing Effects: Chapter 7
QuadraSynth Plus Piano Reference Manual 149
Gated. Gated Reverb is a very popular effect on drums first
found on English records in the early 1980s. This reverb type can
simulate applying a noise gate (a device that automatically
decreases the volume once the signal falls below a certain level)
across the output of the reverb thereby causing the initial attack
of the reverb to sound very big, but the tail of the reverb to be
cut off very quickly. Although this effect is not found in nature,
it works great for modern drums, percussion, and any quickly
repeated, transient source.
Reverse. The Reverse Reverb type is an inverted reverb in which
the volume envelope is reversed. This means that the signal
begins softly but grows louder until it is cut off, rather than loud
to soft as normal.
Pre-Delay Time
Pre-Delay is the slight delaying of the Reverb itself so that the
dry signal more easily stands out from the Reverb. A bit of Pre-
Delay can sometimes make certain instruments (such as snare
drums) sound bigger. Use Quad Knob [2] to adjust the Pre-Delay
Time in 10ms intervals, and/or use Quad Knob [3] to adjust the
Pre-Delay Time in 1ms intervals. This Pre-Delay is part of the
Reverb itself; don’t confuse it with the separate Delay modules
available under the Delay function.
Pre-Delay Mix
Quad Knob [4] allows you to mix the amount of Pre-Delay into
the Reverb signal path. This gives you the ability to hear a bit of
the Reverb before the loudest part of the Reverb (the Pre-
Delayed Reverb) sounds. This makes for bigger and smoother
sounding Reverb settings.
Reverb (Page 3)
Input Filter
This is a low-pass filter which comes before the Reverb input.
Use Quad Knob [1] to adjust the filter frequency. Lower the
Input Filter to remove high frequencies from the input signal
before they go into the Reverb.
Decay
The Reverb Decay determines how long the Reverb will sound
before it dies away. When using the Reverse Reverb type,
Reverb Decay controls the Reverse Time.
Low Decay and High Decay
These two parameters allow the Decay Time to be set separately
for both the low and high frequencies of the Reverb. This means
that you have control over the tonal shape of the Reverb itself,
being able to make the high frequencies die faster if the effect is
too bright, and being able to make the lows die faster if the effect
is too boomy. This allows you to simulate different surfaces of a