Overview, 2 overview – Sonnox Oxford Limiter User Manual
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2 OVERVIEW
A further function allows the user to dynamically correct for reconstruction overloads in
real time, thereby achieving maximum possible modulation levels without the risks of
producing ‘illegal’ signals often associated with compression and limiting.
Comprehensive dithering functionality is included, with selectable and variable depth
noise shaping, which ensures first class mastering output quality in either 24-bit or 16-bit
modes.
2 Overview
The Limiter plug-in is comprised of four processes, cascaded in the following order:
• Pre-processing gain control
• Programme enhancement and overshoot control
• Reconstruction metering and compensation
• Dithering and noise shaping
The primary purpose of the plug-in is to control peak levels and increase the volume,
density and presence of musical programme
without an excessive loss of transient and
dynamic information that normally results from conventional peak limiting
applications.
In order to achieve this, the application employs gain scaling and compression in the
Pre-Process section, and peak overshoot control in the enhancement section. These
processes are used in conjunction to enable the sound of transient and dynamic
information within your programme material to reach the output of the plug-in, despite
very tight control of maximum peak sample values.
The normal
ENHANCE control setting for this action to fully occur is 100% and above in
Normal
Mode, (or any enhance setting with SAFE MODE selected). A variable control
allows the enhance process to be adjusted or removed completely (i.e. at 0% setting), in
which case the Pre-Process section may be used as a conventional programme levelling
application if desired.
A
SAFE MODE is provided which uses the enhance processing to permanently control
peak levels. In this mode the
ENHANCE control varies the perceived loudness boost of
the programme by modifying the processing law.