Kurzweil Forte - Manual (Page 133)

Program Edit Mode
The Wiring Algorithm (ALG) Page
7-36
You’ll recognize the common DSP control parameters, along with several other parameters.
Keep in mind that there’s a set of common control parameters for each of the DSP functions;
in this case we’re describing them only as they apply to the pitch control function.
Function-parameter
Unlike the other five common DSP parameters, the function-parameters are accessible on
both the DSPCTL page and the DSPMOD page. They are listed along the left-hand side of
each page; any changes made to them on one page are reflected in the other. The label of each
function-parameter depends on its function in the current program’s algorithm. For example,
the Pitch function’s function-parameter is labeled Pitch; whereas the two-block Lopass
function’s function-parameters are labeled LP Frq and LP Res.
By adjusting the function-parameter, you can add a fixed amount of adjustment to any DSP
function. For the Pitch function, adjusting the function-parameter will change the pitch in
semitone increments. Use this as a starting point to set the pitch where you want it to be
normally. This will shift the pitch of the currently selected layer, and will affect the playback
rate of sampled sounds. Sampled sounds have an upper limit on pitch adjustment. It’s
normal for the pitches of sampled sounds to “pin” (stop getting higher) when you adjust the
pitch upward in large amounts. The oscillator waveforms can be pitched higher. Any sound
can be pitched downward without limit.
The primary use of adjusting the function-parameter or fine adjust parameter (which will
be explained under the next heading) is to offset the cumulative effects of the other DSP
function parameters. For example, you might set a high value for key tracking (defined
below) for a dramatic change in effect across the keyboard. The effect might be too much at
one end of the keyboard, however, so you could use one of the adjust parameters to reduce
the initial amount of that effect.
The Forte always uses real values of measurement, rather than just arbitrary numbers, for
adjustable parameters. This means that you specify pitch in semitones (ST) and cents (ct),
and amplitude in decibels (dB).