Kurzweil K2000 - MUSICIANS GUIDE - Filters

DSP Functions
Filters
14-5
setting. The normal key tracking curve applies above the keystart setting. When KStart is set
below C 4, the effect on key tracking is maximum at C 9, decreasing with each successive note
closer to the keystart setting, and remaining constant at the keystart setting and below. The
normal key tracking curve applies below the keystart setting.
Use bipolar settings for KStart when you want to gradually increase or decrease the key
tracking effect of the currently selected DSP function across the entire keyboard range. With
KStart at C 4 bipolar, playing C 4 will apply the DSP function at the level you set with the
Adjust parameter, and will increase or decrease with higher or lower notes, depending on your
settings for KeyTrk.
When KeyTrk is set to a negative value, the effect on key tracking is reversed. For keystart
settings above C 4, the effect on key tracking will be maximum at C -1, decreasing with each
note closer to the keystart setting, and remaining constant at and above the keystart setting. For
keystart settings below C 4, the effect on key tracking will be minimum at C 9, increasing with
each note closer to the keystart setting, and remaining constant for notes at and below the
keystart setting.
KStart is available for many of the
non-linear DSP functions , like SHAPER and WRAP. If you
like the control it gives you, you can simulate its effect by using the FUNs. To simulate unipolar
keystart, assign Key Number (KeyNum) as one of the inputs to a FUN, and select one of the
diode equations for the FUNÕs Function parameter. To simulate bipolar keystart, assign Bipolar
Key Number (BKeyNum) as one of the inputs of a FUN. Then assign those FUNs to some other
control source parameter.
The DSP Functions
Filters
ONE-POLE LOWPASS
TWO-POLE LOWPASS
TWO-POLE LOWPASS, -6 dB RESONANCE
TWO-POLE LOWPASS, +12 dB RESONANCE
FOUR-POLE LOWPASS WITH SEPARATION
GATED LOWPASS
ONE-POLE HIGHPASS
TWO-POLE HIGHPASS
FOUR-POLE HIGHPASS WITH SEPARATION
ONE-POLE ALLPASS
TWO-POLE ALLPASS
TWO-POLE NOTCH
TWO-POLE NOTCH, FIXED WIDTH
DOUBLE NOTCH WITH SEPARATION
TWO-POLE BANDPASS
TWO-POLE BANDPASS, FIXED WIDTH
TWIN PEAKS BANDPASS
Positive KeyTrk value with
KStart value at C 5 Bipolar
C 4C 3 C 5
Positive KeyTrk value with
KStart value at C 3 Bipolar
C 4C 3 C 5