Tremolo And Autopan - Kurzweil K2600 - MUSICIANS GUIDE REV A PART NUMBER 910330 CHAP 15 Manual

Advanced KDFX
Using the Algorithms
Vibrato/Chorus
The Vibrato/Chorus algorithm (and also the KB3 effects algorithm) simulates the vibrato and
chorus effects on a Hammond organ, and is used in conjunction with the Rotary Speaker. It has
several unique parameters:
VibChInOut is an in/out switch for the Vibrato/Chorus effect.
Vib/Chor is the type of Vibrato/Chorus effect to be used. The choices are from three vibratos,
V1, V2, V3, or three choruses, C1, C2, C3.
Roto InOut engages or bypasses the rotary speaker effect.
Lo Beam W and Hi Beam W set the acoustic radiation patterns (beam width) of the two drivers
in the rotating speaker. If you imagine looking down on the rotating speaker, this angle is the
angle between the -6 dB levels of the beam. The range is from 45¡ to 360¡. At 360¡, the driver is
omnidirectional.
There are four virtual microphones, with two each on the woofer (LoMic A and LoMic B) and
on the tweeter (HiMic A and HiMic B). Each microphone has the following parameters:
¥ Pos (position), the angle of the microphone from the front of the virtual speaker, from -180 to
180 degrees
¥ Lvl (level) from 0 to 100%
¥ Pan, the left/right panning of the microphoneÕs output, from -100% (full left) to 100% (full
right)

Tremolo and AutoPan

Tremolo is amplitude modulation using an LFO. AutoPan moves the signal between the left and
right channels, using an LFO. They have several parameters in common and several unique
parameters.
LFO Rate is the rate of the LFO. The range is 0 to 10.00 Hz, or in Tremolo BPM algorithm, 0 to
12.00 x the tempo.
Rate Scale multiplies the speed of the LFO rate into the audio range. The range is 1 to 25088 x.
When above 19x, the values increment in semitone steps. These steps are accurate when LFO
Rate is set to 1.00 Hz.
LFO Shape is the waveform type for the LFO. Choices are Sine, Saw+, Saw-, Pulse, and Tri.
LFO PlsWid or 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 effect if other waveform types are chosen. Range is 0 to 100%.
Origin (AutoPan) determines the axis for the panning motion. At 0%, the panning is centered
between the speakers. Positive values shift the axis to the right, while negative values shift it to
the left. At -100% or +100% (the range limits), there is no panning action.
ImageWidth (AutoPan) is the width of the original input program material before it is auto-
panned. At 0% (minimum), the input image is shrunk to a single point source, allowing
maximum panning excursion. At 100% (maximum), the original width is maintained so no
panning can occur.
Pan Width (AutoPan) controls the amount of pan excursion. It is the percentage of total panning
motion available after Origin and ImageWidth are set. Range is 0 to 100%.
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