Yamaha CS-30L Owner's Manual page 13

functions
EG/EFFECT
EG1,
EG2
and
EG3
These
are
envelope generators
which
are
used for
making envelopes with
trigger
signals
developed by
means
of
the
keyboard,
or
by
external signals, to
control
the
PITCH, VCF,
VCA
and
LFO
blocks.
To
enable changeover, an
EG SELECT
switch
is
pro-
vided for
each of the blocks
(i.e.,
PITCH, VCF,
VCA
and LFO).
•
At each envelope generator,
an
indicator will illumi-
nate
whenever
the
EG
is
in
use to
enable confirmation
of
which
block an
EG
is
being used
for.
Regarding
the
PITCH
block,
EG
signals will
cause a
change
in
the intervals.
As
regards the
VCF,
EG
signals will
cause the cut-off
frequency
to
change.
Meanwhile, for the
VCA,
EG
signals arc
used for
con-
trolling
volume
variation
(from
the
point
a
key
is
de-
pressed
up
to the
point the
sound
fades
away).
With regard
to
the
LFO,
EG
signals will
cause the
period to
change.
E61
A
T
h»-
DT
K-RT
-i
KEY ON
TRIGGER
KEY OFF
EG2.3
1
SL
ENVELOPE
(3)
KBO/EXT
This
is
a
switch used
for selecting the trigger input.
Switch
this
over toward the
KBD
side for
key-
board performances and toward
the
EXT
side
when
the
trigger
is
to
be applied with external inputs.
(4)
INITIAL
LEVEL
(IL)
(§)
ATTACK LEVEL
(AL)
(6)
ATTACK TIME
(AT)
(7)
DECAY
TIME
(DT)
(8)
RELEASE TIME
(RT)
(9)
SUSTAIN LEVEL
(SL)
(g)
NORMAL/TIME
x
5
When
positioned
to the
"TIME
x
5"
side,
the
lengths of
AT,
DT
and
RT
will
become
5
times
the
NORMAL
time.
•
The B
outputs
of
EG-1 are
inverted-A outputs, while
the
D
output
of
EG-2
is
an
inverted-
C
output.
•
In the
PITCH,
VCF
and
LFO
blocks,
the
EG's
A,
B, C,
D
and
E can be used
by
effecting
change-
over to any
of
them
that
is
desired.
•
In
the
VCA
block, the
A,
C and
E outputs can be
used
by changeover
operations.
• When
the
EG
outputs
C,
D and E
of
EGs
2
and
3 are
used for the
PITCH
block, the intervals will shift as
set
by
the
SUSTAIN LEVEL.