User`s manual

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4.2.4: Digitally-Controlled Limiter
Application:
The dual-channel input Limiter automatically protects the input circuits from overload
distortion by reducing input signal levels whenever loud sounds, such as door slams, exceed a
specified Threshold. When the overload goes away, the Limiter returns the input signal levels
to their original settings over the specified Release Time interval. If no loud sounds exceed the
specified Threshold, the Limiter will not affect the input signals. In Stereo Input Modes, the
two inputs may be linked, allowing an overload on any input channel to reduce the gain
equally on all inputs, which minimizes the impact on signal processing and maintains proper
stereo perspective.
Clicking on the Active Button within the Limiter block will cause the RED LED to toggle on and off
as shown in Figure 4-9, indicating whether the Limiter is in (RED) or out (GRAY) of the process.
Figure 4-9 Limiter Active Button
For fast access to the Limiter, pressing <Alt-L> may also be used to toggle the Limiter in or out of the
process.
NOTE: The Limiter Active Button is never overridden by the Processor Enabled button.
The Limiter Config button is used to view the dialog that adjusts the Limiter control settings. When
this button is pressed, the window shown in Figure 4-10 appears.
This window allows the user to adjust the Release Time, Threshold, and Link settings of the Limiter.
Release Time specifies how quickly input signal levels will return to normal after an overload condition
goes away; the shorter the Release Time, the more quickly the levels will return to normal. The Release
Time options are 0.125 seconds (fastest), 0.250 seconds, 0.500 seconds, and 1.0 seconds (slowest).
The 0.250 seconds setting is
recommended for voice applications. Release Time settings longer than 0.250 seconds may result in
excessively long periods of reduced signal level after an overload occurs.