Extron electronics DMP 64 User Manual page 102

• Limiter — The limiter regulates the level of the input signal by severely restricting its
dynamic range above a specified threshold. Doing so prevents clipping, protecting
a system against component or speaker damage. The limiter is closely related to the
compressor but applies a much higher compression ratio, expressed as ∞:1, at a much
higher signal level (default is -10 dB). The ratio cannot be changed.
• Noise Gate — The noise gate is an expander working on signal levels below the set
threshold level. It applies an expansion ratio to all signals below the threshold making
those signals softer. Picking a threshold level just above the noise floor of a system
reduces background noise and allows stronger signals, (above the threshold), to pass
untouched. Using a high ratio of 20:1, the noise gate closes the audio path below
the threshold, eliminating background noise, and opens the path above the threshold
allowing the signal to pass; hence the term noise gate.
The default threshold is -65 dB. The ratio is 20.0:1.
Delay Block
The delay processor block, when inserted, provides a means to delay
the audio signal. The processor can delay the audio using either time
or distance as a determiner. The default delay, when inserted, is 100
ms, using the time function. The delay settings can be changed by
double-clicking the processor block. Distance can be specified in
feet or meters. Temperature can be set in either degrees Fahrenheit
or degrees Centigrade. The processor calculates changes in the speed of sound for the
specified temperature. See
Pre-mixer Gain Control
The post-input processing gain control, also called the pre-mixer
gain, provides boost or cut adjustment of the signal level with a
range of -100 dB to +12 dB in 0.1 dB increments.
The default setting is unity gain (0.0 dB).
Delay for additional information.
DMP 64 • Software Control 96