Roland U-20 Owner's Manual page 64

1.
Timbre
Editing
•Channel
Aftertouch
Sensitivity
(-7
—
+
7)
This determines
how
channel aftertouch
will affect
volume.
Edit/TipibreCl]''Leuel
i
Ch
After
Sens^iJ^
•Envelope
(Env)
Edit>'TinbreC13xLeyel
^Env R=am
t>=liK
S=m§
R=t
-
^
Attack Rate
I
Sustain Laval
Dacey Rate
Release
Rate
4v
+ 7
Stronger aftertouch
will
increase
the
volume
±0
Aftertouch
will
not
affect
volume
V
-
7
Stronger aftertouch
will
decrease the volume
Each parameter
determines
how
the
volume
will
change over
time.
Volume
A
:
Attack Rate
C-7
—
h7) the
rate at
which the
sound
begins
D:
Decay
Rate
(—7
—
4-7) the
rate at
which the sustain
level
is
reached
S:
Sustain Level
C~7
—
h
7) the
volume
level at
which
the
sound
is
sustained
R:
Release Rate
(-7
—
+7)
the
rate at
which
the
volume
disappears
Attack
Rate.
Decay
Rate, Release Rate
4^+7
Changes more
rapidly
y
-•
7
Changes more
slowly
Sustain Level
A
+
7
Increased
volume
\f~7
Decreased volume
* These envelope
settings
have
a relative
effect
on
the
envelope
settings
of
the
Tone
itself
;
I.e.,
they
"
modify"
the standard
settings
of
the
envelope
generator. Unlike
the envelopes
found on
synthesizers,
they
are
not "absolute"
settings.
Depending
on
the
selected
Tone,
identical settings
of these values
may
have
different
results.
62