Keyboard Follow - Moog MEMORYMOOG 345 Owner's And Service Manual

CONDITIONAL
CONTOUR
KEY DEPRESSED
->^
^
KEY RELEASED
o
CUTOFF FREQUENCY
OR
LOUDNESS CONTOUR
TIME
\r
RELEASE
(NOT
AUDIBLE
IN
EXAMPLE)
I—
ATTACK
UNCONDITIONAL
CONTOUR
KEY DEPRESSED
-^
^KEY
RELEASED
CUTOFF FREQUENCY
OR
LOUDNESS CONTOUR
TIME
o
KEYBOARD FOLLOW
With
the
CONTOUR GENERATORS
set
up
like this:
^
VOLTAGE COIMTROLLED
FILTER
KB
TRACK
• •
1/3 2/3
-3
3
5
2 8
5
2
8
-5 5
10 10
CUTOFF EMPHASIS CONTOUR AMOUNT
700
1
1.5
1.4
i
3
800.^'/^
6
5
1.4
2 3
400^l;^3
.^\T//
««»^l/^6
100 6
200—
12 2
8
200
12
10-^ \^9
20^/ \-18
-"/x-
20^
\^18
1MSEC
10SEC 2
MSEC
20
SEC
10 2
MSEC
20 SEC
ATTACK DECAY
SUSTAIN RELEASE
•
-D-
•
Hlh-
•
.
•
-D-
RETURN UNCONDITIOMAL KEYBOARD RELEASE
TO ZERO CONTOUR
FOLLOW
700
1
1.5
400^l//3
1.4
^
3
800^\T/^6
^\T//
1.4
2
3
100 6
200
12
2
8
200
12
lo-V
\^«
20
// \^,8
^/x- 20^
\^18
1
MSEC
10
SEC
2
MSEC
20
SEC
10
2
MSEC
20 SEC
ATTACK DECAY
SUSTAIN RELEASE
VOLTAGE CONTROLLED
AMPLIFIER
J
^
KEYBOARD FOLLOW
TURN SWITCH
ON/OFF.
PLAY
CHROMATIC
SCALE,
HOLDING
NOTES
DOWN
MOMENTARILY,
NOTICE
HOW LOW
NOTES
SUSTAIN
LONGER THAN
HIGH
NOTES WITH THE SWITCH
ON.
o
play a
chromatic
scale
up
the
keyboard,
first
with the
KEYBOARD FOLLOW
switch
(10.3) off,
and
then with
it
on.
Hold
the notes
down
a
bit.
When
you
have
the
KEYBOARD FOLLOW
switch on,
notice that the lower notes seem
to sustain longer than the higher ones. That's because
the
KEYBOARD
FOLLOW
switch causes the
attack, decay,
and
release
times of the
CONTOURS
to get
proportionally
shorter
as
you
play higher
on
the keyboard. This
mimics
the
sustain properties
of
acoustic instruments
like
the piano and
guitar
in
that their
higher notes have
less
sustain
than
their
lower
notes.
37