Yamaha REV7 REV7 Owners Manual Image - Page 9

Basic, Operations

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BASIC OPERATIONS First, a brief explanation of what happens when you use the REV7. (A look at the block diagram in this manual illustrates this in visual form). When a signal is sent into the REV7 reverberator, it is first EQ'd, then metered, then converted into a digital signal by an Analog/Digital converter. (NOTE: A stereo input is mixed to mono prior to being processed into a reverb signal. The direct signal, however, remains in stereo). The effect is then created within the Digital Signal Processor, the heart of the REV7. The processed digital signal is then converted back into a stereo reverb signal by two Digital/Analog converters, which create slightly different left-channel and right-channel reverberation patterns. This is then mixed with the direct signal using the Mixing Control. Once you have connected your REV7 to your mixing console, synthesizer, or other external equipment, the following operations should be carried out. 1. Switch power on. It is best to do this before switching on the power of the amplifier or mixer to which the REV7's outputs are connected, to avoid any clicks or bumps. 2. Press the MONO/STEREO switch for mono or stereo input. 3. Send a nominal level signal into the REV7, and adjust the Input Level Control so that it peaks at just under zero on the Input Level LED. 4. Set the Mixing Control to its half way point. This will allow you to hear an "average" mix of the reverb signal and the direct signal. Once you have selected an effect, you can then adjust the Mixing Control to your desired balance. 5. The output control switches should be as follows: MUTE: OFF OUT PHASE: OFF (this can be altered after selecting an effect). MIDI CTRL: OFF BYPASS: OF F The functions of these controls are explained in the FRONT PANEL section of this manual. 6. The REV7 has a sophisticated three-band parametric equalizer. The three bands have overlapping frequency ranges, so you can alter the frequency characteristics of the reverb sound (NOT the direct sound) in virtually any manner. Start by setting the level controls of each band at the zero (central) position (the controls have an indent at this position). After selecting an effect, you can equalize the reverb signal to match the acoustic environment, or to create a special effect. The EQ IN/OUT switch should be ON when adjusting equalization. NOTE: If you add a large amount of EQ to your signal, this may raise the level of the signal, and you can reduce it to peak at zero by adjusting the Input Level Control. You are now ready to select an effect on your REV7. 8

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BASIC
OPERATIONS
First,
a
brief
explanation
of
what
happens
when
you
use
the
REV7.
(A
look
at
the
block
diagram
in
this
manual
illustrates
this
in
visual
form).
When
a
signal
is
sent
into
the
REV7
reverberator,
it
is
first
EQ'd,
then
metered,
then
converted
into
a
digital
signal
by
an
Analog/Digital
converter.
(NOTE:
A
stereo
input
is
mixed
to
mono
prior
to
being
processed
into
a
reverb
signal.
The
direct
signal,
however,
remains
in
stereo).
The
effect
is
then
created
within
the
Digital
Signal
Processor,
the
heart
of
the
REV7.
The
processed
digital
signal
is
then
converted
back
into
a
stereo
reverb
signal
by
two
Digital/Analog
converters,
which
create
slightly
different
left
-channel
and
right
-channel
reverberation
patterns.
This
is
then
mixed
with
the
direct
signal
using
the
Mixing
Control.
Once
you
have
connected
your
REV7
to
your
mixing
console,
synthesizer,
or
other
external
equipment,
the
following
operations
should
be
carried
out.
1.
Switch
power
on.
It
is
best
to
do
this
before
switching
on
the
power
of
the
amplifier
or
mixer
to
which
the
REV7's
outputs
are
connected,
to
avoid
any
clicks
or
bumps.
2.
Press
the
MONO/STEREO
switch
for
mono
or
stereo
input.
3.
Send
a
nominal
level
signal
into
the
REV7,
and
adjust
the
Input
Level
Control
so
that
it
peaks
at
just
under
zero
on
the
Input
Level
LED.
4.
Set
the
Mixing
Control
to
its
half
way
point.
This
will
allow
you
to
hear
an
"average"
mix
of
the
reverb
signal
and
the
direct
signal.
Once
you
have
selected
an
effect,
you
can
then
adjust
the
Mixing
Control
to
your
desired
balance.
5.
The
output
control
switches
should
be
as
follows:
MUTE:
OFF
OUT
PHASE:
OFF
(this
can
be
altered
after
selecting
an
effect).
MIDI
CTRL:
OFF
BYPASS:
OF
F
The
functions
of
these
controls
are
explained
in
the
FRONT
PANEL
section
of
this
manual.
6.
The
REV7
has
a
sophisticated
three
-band
parametric
equalizer.
The
three
bands
have
overlapping
frequency
ranges,
so
you
can
alter
the
frequency
characteristics
of
the
reverb
sound
(NOT
the
direct
sound)
in
virtually
any
manner.
Start
by
setting
the
level
controls
of
each
band
at
the
zero
(central)
position
(the
controls
have
an
indent
at
this
position).
After
selecting
an
effect,
you
can
equalize
the
reverb
signal
to
match
the
acoustic
environment,
or
to
create
a
special
effect.
The
EQ
IN/OUT
switch
should
be
ON
when
adjusting
equalization.
NOTE:
If
you
add
a
large
amount
of
EQ
to
your
signal,
this
may
raise
the
level
of
the
signal,
and
you
can
reduce
it
to
peak
at
zero
by
adjusting
the
Input
Level
Control.
You
are
now
ready
to
select
an
effect
on
your
REV7.
8