Introduction; What Is The Dr4Vr; Features - Akai DR4vr Operator's Manual

Introduction 5
Introduction
From
all
at
Akai, thank
you
for
purchasing an Akai
DR4vr
Hard Disk
Recorder,
and
welcome
to the exciting
world
of hard disk recording. Reading through
this
manual
will
provide
you
with a
good
understanding of what
the
DR4vr
is all
about.
What
is
the DR4vr?
If
you think of a conventional
four-track recorder, replace
all
the
analog
circuitry
with the
latest
digital
audio processing technology, replace the tape transport with a hard disk for near-instant
digital
audio data access,
you won't be
far off the
DR4vr
concept.
However,
the
DR4vr
also features
a remarkable
technological
breakthrough
called
"virtual
tracks"
that greatly
expands
the capabilities
of
the
recorder
far
beyond
those of
a
conventional
four-track.
This innovation enables you
to
record
and
playback
digital-quality
sound on any
four channels you
select
from a
possible
250
virtual tracks, greatly
expanding your
recording,
ping-pong
recording,
and
mixdown
capabilities.
(See
"Virtual
Tracks"
on page
27.)
The DR4vr
uses hard disks
as
its
recording media.
You
can extend
the available
recording time
according
to
your budget by
adding
external
hard disks or using a
larger internal
hard
disk.
In
addition, the
DR4vr
provides nonlinear audio playback,
and you can
specify
edit points
and
search
and
locate
with frame
accuracy.
The DR4vr
is
not supplied as standard with an
internal
hard disk
drive.
Use
Akai's optional
HD540 540MB
internal
hard
disk,
or consult your Akai
professional dealer for
details
about
other
DR4vr
compatible hard disk
drives.
Features
• 4-channel, 250-virtual track hard
disk recorder.
•
16-bit linear
PCM
recording.
•
17 channel
minutes per
100MB
of hard
disk
(fs
@
48
kHz).
•
Up
to
four
units
can be connected
for a
1
6 channel
system.
•
Up
to
seven
SCSI
hard
disks
can be
connected.
•
1
8-bit
64-times oversampling
A/D
converters.
•
1
8-bit 8-tiraes
oversampling
D/A
converters.
• Near-instant data access,
no
time consuming
rewinds,
etc.
• Instant
playback
start.
• Repeat playback
with
no
gaps.
• Powerful
stereo
Ping-pong mode.
•
8 direct locate points.
100
stack locate
points.
•
Absolute and
relative
time modes, with sync
offset.
•
Beat/tempo
map
for
MIDI Qock
master operation.
• Adjustable
preroll.
•
Varipitch.
•
Punch
in/out includes: manual, auto (with
rehearsal),
and
footswitch.
•
Jog/shuttle
wheel
for locating
edits.
• Edit functions
include: copy, copy+insert,
move,
move+insert,
erase, delete,
insert,
and
edit
undo.
•
Balanced
1/4
inch phone
jack analog
inputs
and outputs (+4
dBu
or
-10 dBV).
•
XLR
and
RCA/phono
digital
inputs
and
outputs
(AES/EBU
or S/PDIF).
Version
4.0 12/95