Operating instructions

FILTER MODULE

2 - LFO AMOUNT, KEYBOARD AMOUNT

This function determines the extent to which the LFO modulates the filter cutoff

frequency, and also sets keyboard tracking between 0.00 (minimum) and 1.87

(maximum).

Application (Keyboard Tracking): With no tracking, a sound will become progressively less

bright as you play higher on the keyboard. This is useful with some bass sounds, where you

don’t want the high notes to sound too trebly. With normal tracking (keyboard amount 1.00), the

timbre of a sound remains constant as you play up the keyboard. This is generally used to give

the most realistic synthesizer and instrument sounds. With overtracking (keyboard amount

greater than 1.00), the overall timbre becomes brighter as you play higher up on the keyboard.

This is useful for playing upper keyboard register leads that really “cut” while also playing a

more sedate, muted line in the lower registers.

1. With the module active, Current Voice assigned (see GENERAL INSTRUCTIONS 2),

and the ENTER LED either lit steadily or off, key in 2. The display says:

LFO Amt KBD Amt

XX X.XX

...where x is a numeral.

LFO Amt, controlled by Slider A, determines the extent to which the LFO modulates the

filter cutoff frequency. Range is from 00 to 15, with higher values giving more

modulation.

Note: LFO rate, delay, and variation are set from the VCA/LFO module (see

VCA/LFO 2).

KBD Amt, controlled by Slider B, sets the filter tracking from 0.00 (no tracking) to 1.87

(overtracking). With 0.00 tracking, the filter cutoff will not be affected by the keyboard

pitch. With 1.00 tracking, the filter cutoff will precisely track the keyboard pitch. With 1.87

tracking, the filter cutoff will change at almost twice as fast a rate as keyboard pitch

changes.

2. To exit to another function, see GENERAL INSTRUCTIONS 3 (“Exiting a Function”).