User Manual

Voluum
© Copyright 2014 Sonuus Limited 19
Owner’s Manual
Adjusting the gate
The gate effect on the Voluum is a noise gate/expander. A noise gate is used to suppress unwanted
noise when the signal falls to a low level. It works by allowing signals that are above the gate
threshold to pass through unchanged, but reduces signals that are below the gate threshold. The
Voluum gate effect allows you to configure the threshold (thr), and the amount of reduction (rEd):
the greater the reduction, the more noticeable the effect and the more of the low-level signal (and
hence noise) you lose. The Voluum implements a smooth transition around the threshold so that no
artificial artifacts are introduced into your sound. When the signal is below the threshold, we say that
the gate is closing, and the “closed-ness” of the gate is indicated by the intensity of the gate
LED
.
When the signal is above the threshold and the gate is open, the gate
LED
is not lit.
The graph below shows the difference between high and low reduction. The expander knee is the
smooth transition between the signal above and below the threshold. In the Voluum, the knee is
harder for high reduction and softer for low reduction values.
The gate is also controlled by the attack (Att) and release (rEL) parameters. The attack is the
amount of time for the gate to fully open when the signal exceeds the threshold, and the release is
the amount of time for the gate to fully close when the signal falls below the threshold.