Kurzweil K2600 Musician's Manual page 457

Dedicated FXMod Control Sources
There are a few control sources that apply exclusively to FXMods:
¥ FXLFO1, FXLFO1ph, FXLFO2, and FXLFO2phÑtwo LFOs and their phases.
¥ FXASR1 and FXASR2Ñ two three-stage (Attack/Sustain/Release) envelopes with
selectable triggers and Normal, Hold, and Repeat modes.
¥ FXFUN1, FXFUN2, FXFUN3, and FXFUN4ÑFunctions. Yes, more Fun with KDFX!
The ASRs, FUNs, and LFOs work exactly the same way they do in any other part of a program,
except these are extra control sources for use only with FXMods, and are not available for other
program functions. They are global for all of KDFXÑyou canÕt apply these controls to just one
FXBus.
The parameter values for these controls are saved with the program. As we saw earlier, you get
to the pages for the FXMod control sources by pressing the more> soft button until you see these
soft buttons:
<more| FXLFO| FXASR| FXFUN| ImpFX| more>
In the Program Editor, you can also get to these pages directly from the KDFX page or one of the
FXMOD pages: select one of those parameters as a source, and then press Edit.
Tempo-based Parameters
There are several different ways KDFX can respond to tempo information, from the internal
sequencer or an external one. These are discussed later in this chapter (see Tempo-based Control of
KDFX on page 15-32).
Depth
The Depth parameter lets you specify a range of change in values that the real-time control will
make, using the Adjust value as a minimum or starting point. This range can be positive or
negative, and the values are displayed in the context of the studio parameter: seconds, dB, %,
Hz, cents, etc.
At the maximum setting of the Source (for example, Mod Wheel all the way up), the value of the
parameter = Adjust + Depth. So if the parameter is Out Gain, the Adjust is 1.0 dB, the Source is
Mod Wheel, and the Depth is 4.0 dB, then at the Mod WheelÕs highest point, the output gain will
be 5.0 dB.
For Source values less than maximum, the formula is: parameter = Adjust + (Depth x Source),
where the Source is considered to be varying between 0 and 1 (or in some cases, such as Pitch
Wheel, between -1 and +1). So using the same example, when the Mod Wheel is halfway up
(MIDI value 64), the gain is 1.0 + (4.0 x 1/2) = 3.0 dB, and when it is all the way down (MIDI
value 0), the gain is 1.0 + (4.0 x 0) = 1.0 dB.
The formula works the same way for negative Depth values. Given the same example, but with
a Depth of -4.0dB, at the Mod WheelÕs minimum point, the gain will be 1.0 dB; at its halfway
point it will be -1.0 dB (1.0 + (-4.0 x 1/2)); and at its maximum point it will be -3.0dB.
Showing Who's in Control
When you are in Program or Setup mode and you look inside the current studio or its
FX presets, any parameters that are under FXMod control will not display numerical values, but
Advanced KDFX
Real-time Control of KDFX
15-25