KEYTEK CTS 2000 Instruction Manual page 50

Cutoff, thus
The higher the resonance value, the more 'nasal' the sound becomes.
Parameter : E.G. LEVEL
Power meter : C
Display Par. ENVELOPE LEVEL ( z )
OLD xx NEW yy
Value xx/yy : -63 to +63
Function : Sets the frequency cutoff at which the filter should tend with the envelope defined by the
Parameters of the DCF ENVELOPE GENERATOR Family.
Parameter : KYBD TRACKING
Power meter : D
Display Par. KYBD TRACKING ( z )
OLD xx NEW yy
Value xx/yy : -24 to +24
Function : Links the filter cutoff frequency (Cutoff) to the position of the button pressed on the
keyboard, changing the Cutoff value depending on where you play.
Depending on the value of KYBD Tracking you will have for example:
24.
12.
0. the value will always remain as set by the Cutoff parameter.
-12.
-24.
raising the harmonic content.
every 12 semitones the filter will open 2 octaves (4 times).
every 12 semitones the filter will open 1 octave (2 times), this value respects
the well-tempered scale.
Every 12 semitones the filter will close by 1 octave (2 times).
every 12 semitones the filter will close by 2 octaves (4 times).