User Manual

30 © Copyright 2014 Sonuus Limited
Vo l u um
Owner’s Manual
A large signal entering an effect with limited headroom will often cause hard-clipping where the tops
of the signal are simply chopped off. Generally, this doesn’t sound good. To prevent this, the limiter
soft-clips the signal to reduce the audible artifacts caused by clipping, and for small overloads the
effect can be inaudible.
The nominal signal level at which the limiter clips is set using the dBu parameter. The symmetry of
clipping can be adjusted using the SyM parameter.
The difference between hard clipping and soft limiting is shown below, along with the effect of
changing the symmetry of the limiting.
The harmonic distortion (overdrive) achieved with symmetric limiting introduces odd harmonics into
the output signal. However, by using the SyM parameter to set-up asymmetric limiting, the output
sound can be changed because this introduces even harmonics into the output signal. This effect
can be subtle, but we know that it matters to some of you and the SyM parameter gives you the
flexibility to achieve it. Don’t worry too much about the details of the harmonicsjust set-up the
SEn no 30·030·0
Envelope sensitivity in dB. Only available if envelope
control is enabled.
CtL no 0–127
MIDI
controller for the limiter. Only available if
MIDI
control
is enabled.
Parameter Controllable Range Description
hard clipping
soft clipping
asymmetric soft clipping