Kurzweil K2661, Musician’S Reference Manual

Page: 166 / 500

10-84
KDFX Reference
KDFX Algorithm Specifications
Ch LFO cfg Sets the user interface mode for controlling each of the 4 chorus LFOs.
Ch LRPhase Controls the relative phase between left channel LFOs and right channel
LFOs. In Dual1Tap mode, however, this parameter is accurate only when
Ch Rate 1 and Ch Rate 2 are set to the same speed, and only after the Ch
LFO cfg parameter is moved, or the algorithm is called up.
Ch Fdbk L, Ch Fdbk R These control the amount that the output of the chorus is fed back into the
input.
All other Chorus parameters Refer to Chorus documentation.
Fl LFO cfg Sets the user interface mode for controlling each of the 4 fl ange LFOs.
Fl LRPhase Controls the relative phase between left channel LFOs and right channel
LFOs. In Dual1Tap mode, however, this parameter is accurate only when
Fl Rate 1 and Fl Rate 2 are set to the same speed, and only after the Fl LFO
cfg parameter is moved, or the algorithm is called up.
Fl Phase 1, Fl Phase 2 These adjust the corresponding LFO phase relationships between
themselves and the internal beat clock.
All other Flange parameters Refer to Flange documentation. Parameters with a 1 or 2 correspond to
LFO taps organized as described above.
Laser Delay
Laser Delay is a tempo based delay with added functionality, including image shifting, cross-coupling,
high frequency damping, low frequency damping, and a LaserVerb element. Separate left and right
controls are provided for delay time, feedback, and laser controls. Parameters associated with Laser Verb
in a combination algorithm begin with “Dly” or “Lsr”.
The delay length for each channel is determined by Dly Tempo, expressed in beats per minute (BPM), and
the delay length (Dly Time L and Dly Time R) of each channel is expressed in beats (bts). The tempo alters
both channel delay lengths together. With the tempo in beats per minute and delay lengths in beats, you
can calculate the length of a delay in seconds as beats/tempo * 60 (sec/min). Since KDFX has a limited
amount of delay memory available (usually 1.5 seconds for Laser Delay), selecting slow tempos and/or
long delay lengths may cause you to run out of delay memory. At this point, each delay will pin at it’s
maximum possible time. When you slow down the tempo, you may
fi nd the delays lose their sync.
The laser controls perform similarly to those found in LaserVerb, and affect the laser element of the effect.
The LsrCntour changes the laser regeneration envelope shape. Higher values increase the regeneration
amount, and setting it to 0% will disable the Laser Delay portion completely turning the effect into a basic
delay. LsrSpace controls the impulse spacing of each regeneration. Low values create a strong initial
pitched quality with slow descending resonances, while higher values cause the resonance to descend
faster through each regeneration. See the LaserVerb section for more detailed information.
Delay regeneration is controlled collectively by the Dly Fdbk and LsrCntour parameters since the laser
element contains feedback within itself. Setting both to 0% defeats all regeneration, including the laser
element entirely. Increasing either one will increase regeneration overall, but with different qualities. Dly
Fdbk is a feedback control in the classic sense, feeding the entire output of the effect back into the input,
with negative values polarity inverting the signal. The LsrCntour parameter adds only the Laser Delay
portion of the effect, including it’s own regeneration. For the most intense laser-ness, keep Dly Fdbk at 0%
while LsrCntour is enabled.