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KDFX Reference
KDFX Algorithm Specifications
If Ducking is turned on, then the behaviour of the gate is reversed. The gate is open while the side chain
signal is below threshold, and it closes when the signal rises above thresold.
If the gate opened and closed instantaneously, you would hear a large digital click, like a big knife switch
was being thrown. Obviously thatÕs not a good idea, so Atk Time (attack) and Rel Time (release)
parameters are use to set the times for the gate to open and close. More precisely, depending on whether
Ducking is off or on, Atk Time sets how fast the gate opens or closes when the side chain signal rises above
the threshold. The Rel Time sets how fast the gate closes or opens after the gate timer has elapsed.
The Signal Dly parameter delays the signal being gated, but does not delay the side chain signal. By
delaying the main signal relative to the side chain signal, you can open the gate just before the main signal
rises above threshold. ItÕs a little like being able to pick up the telephone before it rings!
For Super Gate (not the simpler Gate), Þltering can be done on the side chain signal. There are controls for
a bass shelf Þlter, a treble shelf Þlter and a parametric (mid) Þlter. By Þltering the side chain, you can
control the sensitivity of the gate to different frequencies. For example, you can have the gate open only if
high frequencies are present -- or only if low frequencies are present.
Parameters for Gate
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Additional Parameters for Super Gate
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In/Out When set to ÒInÓ the gate is active; when set to ÒOutÓ the gate is bypassed.
L/R Out Gain The separate output signal levels in dB for the left and right channels. The output gains
are calculated before the Þnal output panning.
L/R Pan Both of the gated signal channels can be panned between left and right prior to Þnal
output. This can be useful when the gate is used as a mono effect, and you donÕt want to
In/Out In or Out
L Out Gain Off, -79.0 to 24.0 dB R Out Gain Off, -79.0 to 24.0 dB
L Pan -100 to 100% R Pan -100 to 100%
SC Input (L+R)/2
Threshold -79.0 to 24.0 dB Gate Time 0 to 3000 ms
Ducking On or Off Atk Time 0.0 to 228.0 ms
Retrigger [Super] On or Off Rel Time 0 to 3000 ms
Env Time [Super] 0 to 3000 ms Signal Dly 0.0 to 25.0 ms
SCBassGain -79.0 to 24.0 dB SCTrebGain -79.0 to 24.0 dB
SCBassFreq 16 to 25088 Hz SCTrebFreq 16 to 25088 Hz
SCMidGain -79.0 to 24.0 dB
SCMidFreq 16 to 25088 Hz
SCMidWidth 0.010 to 5.000 oct
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