Kurzweil PC3A6 [220/423] Distortion

Kurzweil PC3A6 [220/423] Distortion
Effects and Effect Mode
Effects Overview
9-21
Retrigger is the input-signal threshold at which the envelope detector resets, so that it can trigger
again. This parameter is only useful when it is set below the value of Trigger. Range is from -79 to
0 dB.
Env Rate is the envelope detector decay rate. This can be used to prevent false triggering. When
the signal envelope falls below the retrigger level, the lter can be triggered again when the
signal rises above the trigger level. Since the input signal can uctuate rapidly, it is necessary to
adjust the rate at which the signal envelope can fall to the retrigger level. The range is 0 to 300.0
dB/sec.
Rel Rate is the downward slew (release) rate of the triggered envelope generator. The range is 0
to 300.0 dB/sec.
Smth Rate slows down the envelope follower. If set lower than the release rate, it will dominate
it. You can also use the smoothing rate to lengthen the attack of the internal envelope. The range
is 0 to 300.0 dB/sec.
LFO Filter
The LFO lter is continuously swept between two resonant frequencies over a period of time.
The LFO frequency, expressed in BPM and beats, can be xed or set to follow System tempo.
Min Freq and Max Freq are the low and high limits of the resonant frequency as the lter is
swept. You can set the Min Freq higher than the Max Freq, in which case the lter will sweep
“upside down” relative to the controlling clock. The range for both is 16 to 8372 Hz.
LFO Shape is the waveform type for the LFO. Choices are Sine, Saw+, Saw-, Pulse, and Tri.
LFO PlsWid (Pulse Width). When the LFO Shape is set to Pulse, this sets the pulse width as a
percentage of the waveform period. When the width is set to 50%, the result is a square wave.
This parameter has no eect if other waveform types are chosen. Range is 0 to 100%.
LFO Smooth smooths (removes the higher harmonics from) the Saw+, Saw-, and Pulse
waveforms. A Sawtooth wave becomes more like a triangle wave, and a Pulse wave becomes
more like a sine wave. Range is 0 to 100%.
Distortion
Distortion eects on the PC3A may also include a parametric equalizer or a cabinet simulator.
Dist Drive applies a boost to the input signal to overdrive the distortion eect into soft clipping.
This will tend to make the signal very loud, so you may have to reduce the Out Gain as this
parameter is increased. Range is 0 to 96 dB.
Warmth is a lowpass lter in the distortion control path. This lter may be used to reduce some
of the harshness of some distortion settings without reducing the bandwidth of the signal. Range
is 16 to 25088 Hz.
Highpass allows you to reduce the bass content of the distortion content in the smaller distortion
eects that don’t have true parametric EQ. Range is 16 to 25088 Hz.
Cab Preset selects from eight cabinet simulations which have been created based on
measurements of real guitar amplier cabinets. The presets are: Basic, Lead 12, 2x12, Open 12,
Open 10, 4x12, Hot 2x12, and Hot 12.
Cab Bypass switches on and o the cabinet-simulation part of the eect. When this is set to “In”,
the cabinet simulation is active; when it is “Out”, there is no cabinet action.
Cabinet HP and Cabinet LP are highpass and lowpass lters to set the frequency response limits
of the cabinets. Range of both lters is 16 to 25088 Hz.

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