MX

Table Of Contents
182 Audio effects
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Width: See room/hall
Please note that no decay parameter exists for these models, i.e. there is no
"decay".
Spring
You may be familiar with reverb spirals from guitar and keyboard amplifiers. At
the bottom of these amps, a unit consisting of two to four spirals is mounted
on a vibration-free carriage. Like the reverb plate, this uses systems for
transforming the electric signal into a mechanical one and the other way
around. There are different designs and sizes of spring reverb; however, they
all have the same quite peculiar sound: the typical "bloing" sound when the
springs are moved, similar to splashing. When the reverb dies away, the basic
pitch of the spring(s) can usually be heard quite clearly. Furthermore, the
frequency range is limited due to the losses in the spirals and used pick-
up/transmitter. Nevertheless, or maybe for this reason, the sound is special.
Some music styles such as dub & reggae would hardly be possible without
reverb.
The spring reverb is implemented in VariVerb Pro as a digital effect based on
so-called "physical modeling" algorithms. Based on a mass-spring system, the
effect operates similar to the physical model of a swinging string.
Parameter:
EQ low/high: See room/hall
Pre-delay: See room/hall
Size: Size of the spring system, i.e. length of the springs. A smaller value
results in a very short response time and short echoes, greater values slightly
spread the typical "oscillation" of the spring. The length of echoes is
increased.
Decay: Decay length. Please note that unlike the room/reverb and plate
models, an echo effect remains if the decay times are longer. This
corresponds with the natural characteristic of a spring, since these continue
move during the release phase.
Saturation: The spring models also include the processes when "outputting"
the signal and "receiving" it via the magnet/coil system. The transfer of
electrical energy into mechanical power and vice versa is non-linear so that
(harmonic) distortions may occur if the input level is quite high. The saturation
parameter more or less increases the output volume and switches the system
into "saturation". Depending on the material, a very interesting organic effect
occurs which highlights the vintage character.