KDFX Reference
KDFX Algorithm Specifications
10-159
hear one of the input channels, but you want your mono output panned to stereo. -100% is
panned to the left, and 100% is panned to the right.
SC Input The side chain input may be the amplitude of the left L input channel, the right R input
channel, or the sum of the amplitudes of left and right (L+R)/2. You can gate a stereo
signal with itself by using the sum, a mono signal with itself, or you can gate a mono
signal using a second mono signal as the side chain.
Threshold The signal level in dB required to open the gate (or close the gate if Ducking is on).
Ducking When set to ÒOffÓ, the gate opens when the signal rises above threshold and closes when
the gate time expires. When set to ÒOnÓ, the gate closes when the signal rises above
threshold and opens when the gate time expires.
Retrigger If Retrigger is ÒOnÓ, the gate timer is constantly restarted (retriggered) as long as the side
chain signal is above the threshold. The gate then remains open (assuming Ducking is
ÒOffÓ) until the signal falls below the threshold and the gate timer has elapsed. If
Retrigger is ÒOffÓ, then the gate timer starts at the moment the signal rises above the
threshold and the gate closes after the timer elapses, whether or not the signal is still
above threshold. With Retrigger off, use the Env Time to control how fast the side chain
signal envelope drops below the threshold. With Retrigger set to off, the side chain
envelope must fall below threshold before the gate can open again. [Super Gate only]
Env Time Envelope time is for use when Retrigger is set to ÒOffÓ. The envelope time controls the
time for the side chain signal envelope to drop below the threshold. At short times, the
gate can reopen rapidly after it has closed, and you may Þnd the gate opening
unexpectedly due to an amplitude modulation of the side chain signal. For long times, the
gate will remain closed until the envelope has a chance to fall, and you may miss gating
events.
Gate Time The time in seconds that the gate will stay fully on after the signal envelope rises above
threshold. The gate timer is started or restarted whenever the signal envelope rises above
threshold. If Retrigger is On, the gate timer is continually reset while the side chain signal
is above the threshold.
Atk Time The time for the gate to ramp from closed to open (reverse if Ducking is on) after the
signal rises above threshold.
Rel Time The time for the gate to ramp from open to closed (reverse if Ducking is on) after the gate
timer has elapsed.
Signal Dly The delay in milliseconds (ms) of the signal to be gated relative to the side chain signal. By
delaying the main signal, the gate can be opened before the main signal rises above the
gating threshold.
Super Gate Parameters
SCBassGain The amount of boost or cut that the side chain bass shelving Þlter should apply to the low
frequency signals in dB. Every increase of 6 dB approximately doubles the amplitude of
the signal. Positive values boost the bass signal below the speciÞed frequency. Negative
values cut the bass signal below the speciÞed frequency.
SCBassFreq The center frequency of the side chain bass shelving Þlters in intervals of one semitone.
SCTrebGain The amount of boost or cut that the side chain treble shelving Þlter should apply to the
high frequency signals in dB. Every increase of 6 dB approximately doubles the amplitude
of the signal. Positive values boost the treble signal above the speciÞed frequency.
Negative values cut the treble signal above the speciÞed frequency.
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