Roland JV-80 Owner's Manual page 106

1,
Patch Edit
TVF
^
Envelope Time
Key
Follow/Velocity
Sensitivity
These
parameters
let
you
increase or decrease the
envelope time and
level
depending on key
position (the standard
is
C4) and playing
strength.
One
typical application
is
to set the
key follow
to a
value greater than 100
for
sound
programs of instruments
that
decay
relatively quickly, to
make
the
sound decay
faster as higher notes are played.
It is
also
common
to set
the velocity
level sensitivity to
a high value so
that
the brightness of the sound
increases
dramatically as
the
keys
are
played strongly similar
to the
way
the
sound of a trumpet
radically
changes
when
it is
overblown.
Since each
Tone
can be
set
independently,
the
sound programs
are
changed
to
become
brighter
depending on
the
key
range and playing
strength,
if
you
set
+/
-
value
for
each Tone.
TVF
Page
i
Ijyp
I
Cut
I
Res
I
ModeB F-KF
I
En'...-
I
TUF #LPF
I
85
I
6
I
SOFT
I
100
I
+63
I
Filter
Type
Settings:
OFF/LPF/HPF
This determines the type of
TVF.
LPF
sets
it
to
low
pass
filter
operation,
and
HPF
sets
it
to
high pass
filter.
Filter
operation
is
cancelled
when
set to
OFF.
Cutoff
Frequency
Range:
—
127
This determines the cutoff frequency,
above
or
below which
the
TVF
is
applied for filtering
out
the specified
frequency elements of
the
waveform. The
greater the value, the higher
the cutoff
frequency.
Resonance
Range:
—
1
27
This emphasizes
the
frequency elements of
the
waveform
around the cutoff frequency.
The
greater the value, the
stronger the resonance
effect.
LPF
HPF
Lever
High
Resonance
1
-Frequency
i
Cutoff frequency
Low
4L
1\
106