Cutoff Eg - Yamaha SY77 Operating Manual

VOICE EDIT MODE
This indicates the type of the filter being edited,
and its cutoff frequency. The cutoff frequency can
be modified from this job, but to modify the type
of filter you must use job 8.1 Filter cutoff.
BP1-4 (Break Point): Note (C-2...G-8) and Off-
set (-127...+127) of each Break Point determine
how the cutoff frequency level of the filter will
vary across the keyboard. When the cursor is
located at note, you can press F7 (Kbd) and
press a key to enter the new note setting.
Break Point: The filter cutoff frequency can be
made to vary depending on the note that is
played. On most acoustic instruments, notes
differ in tone depending on the range in which
they are played.
Use the four break points to specify how the
filter cutoff frequency will be adjusted across the
keyboard. Offset (-127...+127) determines how
the cutoff frequency will be adjusted at each of
the four points specified by Note (C-2...G-8).
AFM ELEMENT DATA / AFM FILTER
Summary: The cutoff frequency of each filter can be
moved over time by its own EG to make the
tone change.
Procedure:
From: AFM element job directory (JUMP #248)
8. AFM filter
Select: 03:CutoffEG
filter 1 rates press
Fl (Fitl), F3 (Rate)
filter 1 levels press
Fl (Pitl), F4 (Lvl)
filter 2 rates press
F2 (Flt2), F3 (Rate)
filter 2 levels press
F2 (Flt2), F4 (Lvl)
Specify: filter EG parameters
134
The offset at each break point is added to the cutoff
frequency of 80. For example the offset at break
point 1 (El) is -4, so the resulting cutoff frequency
at E1 is 76. The resulting cutoff frequency is limited
to the range of 0...127.

8.3 Cutoff EG

(JUMP #252)
(JUMP #253)
(JUMP #254)
(JUMP #255)
The four note settings must be in ascending
order. It is not possible to set a break point to a
note lower or higher than the note settings of the
neighboring break points.
The following diagram shows how the filter
cutoff frequency would be adjusted across the
keyboard.
This indicates whether you are editing the EG of
filter 1 or 2.
This indicates the displayed segment and range
of the EG graphic display. To change the display
range, hold SHIFT and press F1-F6 (xl, x2, x5,
x10, x20, x50). To shift the display to a different
segment, hold SHIFT and press F7 or F8
(Segl...Seg4, Rel1).
The filter EG is graphically displayed.
R1-R4, RR1-RR2 (Keyon Rates, Release Rates
0...63): Keyon Rates 1-4 and Release Rates 1-
2 determine the speed of the filter EG. Higher
settings result in faster change.