User Manual

Core Avid Audio Plug-Ins
984
Flanger (AudioSuite)
The Flanger plug-in combines a time-delayed, pitch-shifted copy of an audio signal with itself.
The Flanger differs from other digital flangers in that it uses a through-zero flanging algorithm
that results in a truer tape-like flange. This technique delays the source signal very slightly
(approximately 256 samples), and then modulates the delayed signal back and forth in time in
relation to the source signal, passing through its zero point on the way.
The Flanger plug-in is ideal for thickening and adding a swirling, moving quality to guitars and
other instruments. The following table lists the Flanger plug-in parameters:
Attack Sets the attack time, or the rate at which gain is reduced after the input signal
crosses the threshold. Use this along with the Ratio setting to control how soft the
Expander’s gain reduction curve is. Values range from 10 microseconds (fastest
attack time) to 300 milliseconds (slowest attack time).
Release Sets how long it takes for the gate to close after the input signal falls below the
threshold level and the hold time has passed. Values range from 5 milliseconds
(fastest release time) to 4 seconds (slowest release time).
Hold Specifies the duration (in seconds or milliseconds) during which the Expander/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 periods of time with a single crossing of
the threshold. 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. Values
range from 5 milliseconds (shortest hold) to 4 seconds (longest hold).
Threshold (THRESH) Sets the level below which an input signal must fall to trigger expansion or gating.
Signals that fall below the threshold will be reduced in gain. Signals that are above
it will be unaffected. Values range approximately from -60 dB to 0 dB (no
expansion or gating). -24 dB is the default value.
In the Levels panel, the orange Threshold arrow on the Input meter indicates the
current threshold. You can drag the arrow up and down to adjust the Threshold
setting.
In the graph display, the threshold appears as an orange vertical line.
Parameter Description
Parameter Description
Input Level Lets you adjust the input volume of the flanger to prevent clipping or increase the level of the
processed signal. This slider is set to a default of +3 dB. If your source audio has been recorded
very close to peak level, this +3 dB default setting could cause clipping. Use this control to
reduce the input level.