Kurzweil Flash Play PC4 - Ring Modulation; Stereo Simulation

The Effects Chain Editor
Effects Parameters
4-25
Ring Modulation
Ring modulation multiplies two signals (the “carrier” and the “modulator”) together to
produce unusual, often non-harmonic, overtones. e Ring Modulator eect in the PC4 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 ve waveforms that are generated
from oscillators within the eect itself. Four of these oscillators are sine waves, while one
(Oscillator 1) oers a selection of waveforms.
Wet/Dry. When the eect 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, L*R or Osc.
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. is parameter has no eect 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%.
e other four oscillators, Sine2 through Sine5, each have Lvl and Freq controls.
Stereo Simulation
e Mono to Stereo eect 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 O/-79.0 to 24.0
dB.
Di Gain is the level of the dierence signal produced, which is the spatial component of
the stereo signal. Range is O/-79.0 to 24.0 dB.
DiBassG controls the gain of a bass-shelf lter on the dierence signal. By boosting the
low frequency components of the dierence signal, you can increase the sense of acoustic
envelopment. Range is -79.0 to 24.0 dB.
DiBassF is the transition frequency for the bass-shelf frequency. Range is 16 to 25088 Hz.
e processed signal is split into three frequency bands—Lo, Mid, and High—each of which
can be delayed and panned separately.