Roland JV-80 Owner's Manual page 95

1.
Patch
Edit
|WAVE/LFdl
Parameters
Selected by
|
WAVE/LFO
|
(7
Pages)
These
display
pages
let
you
select the
waveform
the basic building block
for the
sound and
make
LFO
settings.
-k
Waveform
The JV-80
is particularly
well
suited for recreating the
complex
sounds of
actual musical instruments.
Take, for
example,
the sound of an
acoustic piano.
We
know
that
the piano sound
is basically
made
by
the vibration of
the
strings.
However,
if
we
listen
more
closely,
we
find that
the overall sound
is
fairly
complex
and
made
up
also of
the
percussive sounds of
the
hammer
hitting the strings, the sympathetic vibration of
the other
strings
and
the resonance
of
the
body
of
the
piano
itself.
In the
JV-80, by
assigning
all
these
sounds
to
several different Tones,
we
can create a
much
richer
and
realistic
sound.
Even
when
creating
unique sounds
that
have no
counterparts among
actual
instruments, you
can give those sounds added depth and
"realism"
by
crafting
them
with component
striking or
plucking sounds and sympathetic
vibration
sounds.
The JV-80
not only has waveforms
for
making
the basic sounds, but also "one-shot"
waveforms which
can be used
for the attack portion of the sound, loop
waveforms, which
are useful for
sound
effects,
and rhythm waveforms
which
are especially for creation
of
drum
and
percussion sounds.
They
can be called
up from
the internal
memory,
optional
PCM
cards
and expansion
boards.
;*:
Tone
Switches
These allow you
to
turn the sound of
individual
Tones on and
off. In
order
to
save simple sound programs and
set
the
number
of voices
that
sound,
we
suggest
that
you
use these switches
to
turn off Tones
that are not being used.
-Ar
Processing
the
Waveforms
The JV-80
also provides
waveform
processing that
lets
you
create a nearly
unlimited variety of
waveforms
having
even
greater complexity.
The
processing method
is
called
FXM
(Frequency
X-Moduiation),
and
new
waveforms
can be
created
by mixing
(or cross-modulating) two waveforms.
This
is
ideal for
creating unusually
dynamic
and sharp sounds.
if:
Modulation
and
Vibration of
Sound
Many
of
the
sounds
in
nature and
the
sounds of
acoustic musical instruments
have
their
own
unique modulation or
vibration. For example,
the
sound
of a
bell
has a
natural
modulation, and
notes
on
a violin are often played with
vibrato.
By
varying
the
pitch,
cutoff frequency and/or
level
with
the
LFO,
instiiiment sounds can be made more
natural and
authentic. Besides these subtle techniques,
it is
also possible
to
use
the
LFO
to radically
change
the
character
of
the sound.
The JV-80
has
two
independent
LFO
systems
for
each Tone.
Waveform:
Available waveforms are
triangle wave, sine
wave, sawtooth wave, square wave, and
random waves
1
and
2. In
order
to
add
modulation
and
vibrato, select the sine
wave
or
triangle
wave,
and
apply
it
in
small
degrees
to
the
level
(volume) and
the
pitch.
The random waveforms
are
useful
in
creating special
sound
effects
and
modulation.
Syncro:
When
this is
set
to
ON.
the
LFO
starts
independently
for
each key pressed
(key
on),
making a
richly
textured mix
of
sounds
when
playing chords. This
is
ideal for adding realism
to
an ensemble
effect,
reproducing the
natural lag between the
start of vibrato for
each
instrument
in
a band
or orchestra.
95