Kurzweil PC3K6, Руководство музыканта

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Effects
Ring Modulation
9-23
Pitch . The fundamental pitch imposed upon the input, in MIDI note numbers from C ‐ 1 to G9.
Ptch Offst is an offset from the pitch frequency in semitones, from ‐ 12.0 to 12.0. It can be useful
to assign pitch bend, a ribbon, or another continuous controller to this parameter through a
MOD.
Odd Wts , Pair Wts , Quartr Wts , Half Wts are parameters that control the shape of the
frequency response of Pitcher. An exact description of what each one does is, unfortunately,
impossible, since there is a great deal of interaction between them. For more information and
examples, see the KSP8 Algorithm Reference Guide .
Ring Modulation
Ring modulation multiplies two signals (the “carrier” and the “modulator”) together to produce
unusual, often non ‐ harmonic, overtones. The Ring Modulator algorithm in the PC3K has two
modes: “ L*R ” in which two mono signals are modulated together; and “ Osc ”, in which the
input is stereo, and it is modulated with the sum of five waveforms that are generated from
oscillators within the algorithm itself. Four of these oscillators are sine waves, while one
(Oscillator 1) offers a selection of waveforms.
Wet/Dry. When the algorithm is in “L*R” mode, this controls how much of the left signal only is
passed dry (the right signal isn’t passed dry at all).
Mod Mode selects between the two modes.
Osc1 Lvl is the level of Oscillator 1, from 0 to 100%.
Osc1 Freq is the frequency of Oscillator 1, from 16 to 25088 Hz.
Osc1 Shape is the waveshape of Oscillator 1, selectable from Sine, Saw+, Saw ‐ , Pulse, and Tri.
Osc1PlsWid (Pulse Width). When Osc1 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 effect if other waveform types are chosen. Range is 0 to 100%.
Osc1Smooth 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%.
The other four oscillators, Sine2 through Sine5 , each have Lvl and Freq controls.
Stereo Simulation
The Mono to Stereo algorithm converts a monaural input to simulated stereo output.
In Select selects the input signal to be “stereo ‐ ized”. It can be Left, Right, or both: (L+R)/2.
CenterGain is the level of the summed left and right channels. Range is Off/ ‐ 79.0 to 24.0 dB.
Diff Gain is the level of the difference signal produced, which is the spatial component of the
stereo signal. Range is Off/ ‐ 79.0 to 24.0 dB.
DiffBassG controls the gain of a bass ‐ shelf filter on the difference signal. By boosting the low
frequency components of the difference signal, you can increase the sense of acoustic
envelopment. Range is ‐ 79.0 to 24.0 dB.
DiffBassF is the transition frequency for the bass ‐ shelf frequency. Range is 16 to 25088 Hz.