Specifications

Chapter 10: Channel Strip 55
Using the Dynamics Graph to Adjust
Controls
You can drag in the Dynamics Graph display to
adjust the corresponding Expander/Gate and
Compressor/Limiter controls. The cursor up-
dates to show which control is being adjusted:
•Expander/Gate Ratio
•Expander/Gate Knee
•Expander/Gate Threshold
•Gate Depth
•Hysteresis
• Compressor/Limiter Ratio
• Compressor/Limiter Knee
• Compressor/Limiter Threshold
•Limiter Depth
Expander/Gate Controls
Threshold
The Threshold (Thresh) control sets the level be-
low which an input signal must fall to trigger ex-
pansion or gating. Signals that fall below the
threshold will be reduced in gain. Signals that
are above it will be unaffected.
The Dynamics Graph display shows the thresh-
old as a vertical line.
Attack
The Attack control sets the attack time, or the
rate at which gain is reduced after the input sig-
nal crosses the threshold. Use this along with the
Ratio setting to control how soft the Expander’s
gain reduction curve is.
Ratio
The Ratio control sets the amount of expansion.
For example, if this is set to 2:1, it will lower sig-
nals below the threshold by one half. At higher
ratio levels the Expander/Gate functions like a
gate by cutting off signals that fall below the
threshold. As you adjust the ratio control, refer
to the Dynamics Graph display to see how the
shape of the expansion curve changes.
Depth
The Depth control sets the depth of the Ex-
pander/Gate when closed. Setting the gate to
higher range levels allows more and more of the
gated audio that falls below the threshold to
peek through the gate at all times.
Hold
The Hold control specifies the duration (in sec-
onds or milliseconds) during which the Ex-
pander/Gate will stay in effect after the initial
attack occurs. This can be used as a function to
keep the Expander/Gate in effect for longer peri-
ods of time with a single crossing of the thresh-
old. It can also be used to prevent gate chatter
that may occur if varying input levels near the
threshold cause the gate to close and open very
rapidly.
For the Expander/Gate and Compressor
Limiter effects, adjusting a control in the
Dynamics Graph display automatically
shows the pane that includes the adjusted
control if it is not already shown (except
when the All tab is shown).
Dynamics section, Expander/Gate tab