Manual
Table Of Contents
- Introduction
- Operation
- ‘Front Panel’ Controls
- Dynamics Control
- Compressor
- Limiter
- Expander
- Gate
- Sidechain EQ
- Warmth
- Max Trim Control
- Dither Control
- Buss Compressor (Pro Tools TDM only)
- Description of Controls
- Preset Manager Toolbar
- Specifications
- Copyright and Acknowledgements
- Manual Revision History
- Platform Specific Supplement
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2.5 Expander
The dynamics’ Expander section control functions are presented similarly to the Compressor
and Limiter sections, except that a RANGE control is added. The architecture of the
expander conforms to what is often described as ‘downward expansion’, which means that
the application only works to attenuate existing signals below a set threshold, and cannot
produce any additional gain for signals above the set threshold level. In practice, this means
that, although the purpose of the expander is to increase dynamic range, it can only achieve
this by reducing the signal level in the first place.
The THRESHOLD control sets the level below which the expander will become active.
The RATIO control sets the gain slope rate that signals below the threshold will be
attenuated with respect to the input levels.
The RANGE control sets the lowest limit that any attenuation caused by expansion can reach.