AKAI DIGITAL DR8 User manual

HARDDISKRECORDER
Operator's Manual
WARNING
To piwem fire or shodc hazard, do not
expose ttus af^riiance to rain or moisture.

WARNING!!
To proviiit^ni m*hi^MKtara, do not expose this appliance to
rain or moisture.
w\
5C/^y-FIQN A
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO RiDlKJETHE BISKQFlia21B
DO NOT REMOVE COVER (OR iSAGK).
NO USER-SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUAUF3ED SERVICE PERSONNEL
The lightning flash with the arrowhead symbol superimposed
across agraphical representation of aperson, within an equilateral
triangle, is intendedtoalertthet^^thej^'WMHiceofundulated
^llangerous wttage'^ within thoprwluct'sanctoBurs;thatmaybe of
sufficient nwgnitude to constituta aiMc of iriec^ shock.
The exclamation point within an equilateral triangle is intented to
alert the user to the presence of important operating and mainte-
nance (servicing) instructions mthe literature accompanying the
appliance.
5A-En

WARNING
The DR8 is designed to be used in astandard household environment
Power requirements for electrical equipment vary from area to area. Please ensure that
your DR8 meets the power requirements in your area. If in doubt, consult aqualified
electrician or Akai Professional dealer.
120VAC @60H2 for USA and Canada
220-230/240VAC @50Hz for Europe
240VAC @50Hz for Australia
PROTECTING YOURSELF AND THE DR8
Never touch the AC plug with wet hands.
Always disconnect the DR8 from the ppwer supply pulling on the plug, not the
cord.
AHow only an Akai Professional dealer or qualified professional engineer to repair
or reassemble the DR8. Apart from voiding the wan-anty, unauthorized engineers
might touch live internal parts and receive aserious electric shock.
Donotput, or allowanyone to put any object, especially metal objects, irito the DR8.
Use only ahousehold AC power supply. Never use aDC power supply.
Kwateror any other liquid is spilled into or pnto the DR8, disconnect the power, and
call your dealer.
*Make surf Uiat the unit is well-ventilated, andaway from di
*To avoid damage to internal circuitry, as well as the external finish, keep the PR8
away from sources of direct heat (stoves, radiators, etc.K
I'Av<^u8ingaerosolinsecticides,ete.)rieartheDR8.Theymaydamagethesurface,
and may ignite. >-:
*Donotu^denaturatedalcohol,thinnerorsimilarchemicalstocleantheDR8.They
wiljctemlgethfi finish.
Modification of this equipment Is dangerous, and can result in the functions of the
DR8 being impil^idi Newr attempt to rrwdify We equipinent in any
In order to assure optimum performance of your DR8, select the setup location
carefully, and make sureme eqMiprnentis wsedprpper^i AvoW settt^ up the DR8
in the following locations:
1. In ahumid or dusty environment
2. Ir) aroom with poor ventilation
3i On asurfac»f whiclvis not horizontal
4^ inside avehicle such as acar, where it will be subject to vibration
5. In art extremely hot oreoid environing

FCC WARNING
This equipment has been tested and foun<S to coniply with tiie limits for aClass Bdigital
device pursuant to Part 15 of the FCC rules. These limits are designed to provide
reasonable protection against harmful interference in aresidential installation. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular Installation, if this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to (»rreet ttie interference by one «r fhore of the following
measures:
-Reorient or relocate the receiving antenna.
-itusr^e the sepamfioh between the equipment and receiver.
-Connect the equipment into an outlet on acircuit dlfferent from that to which the
receiver is connected.
-CortsuK the dieaiir ora^^ radio/TV technician for help. 21B-En
AVIS POUR UES ACHETEURS CAN^pNS PM PR^
Le present appareil num^riqai ii*6ment pas des bruits radioilectriques d^passant les
limites applicables auxapparejis numeriques de la Class Bprescrites dans le Reglement
sur le brouillage radiodlef^quii §dicte par le ministere des Communications du Canada
v^'-rrfh 27-F
This digital apparatus does not exceed the Class Blimits for radio noise emissions from
digital apparatus set put ,in tlia Radio InterfepenoB Regulations of the Canadian
FUR KUNDEN IN OER BUNDE$REPUBUK 0EUT9CHLAND
Bescheinigung von AKAI
HIermIt wird bescheinigt, daS das Gerat AKAI
.....,PR8
in Obereinstimhtuhg rriif den 8estinitrnungen der
^itt^latt^fffijjurigio^
j^nlcertt$t5rt ist
Der Deutschen Bundespostwurde daslnverkehrbringen dieses GerStes angezeigt und
die Berichtigungzur UberprufungderSerfe auf Einhaltung derBestimmungen eIngerSumt.
Ai<AllLeC?miCCO.:LTD *17B-G
COPYRIGHT NOTICE
The AKAI DR8 is attjmputer-based device, and as such contains and uses software in
ROfwIs. This software, and all related dcaaimentation, including this Owners Manual,
contain proprietary infomiation which is protected by copyright laws. All rights are reserved.
No part of ttie software or its documentation may be copied, fransfen-ed or modified. You
may not modify, adapt, translate, lease, distribute, resell for profit or create derivative works
based onthe software and its related documentation oranypartthere of withoutprior written
consent from AKAI Electric Co. Ltd, Tokyo. Japan.

WARNING
THIS APPARATUS MUST BE EARTHED
IMPORTAHT
This equipment is fitted with an approved non-rewireable UK mains plug.
To change the fuse in this type of plug proceed as foitows:
1)Remove the fuse cover and old fuse.
2) Fitanewfuse which should Iwt aBSia^ 5Amp A.S.T.A or BSI approved type.
3) Refit the fuse cover.
If the AC mains plug fitted to the lead supplied, vwth this equipment is not suitable for your
type of ACoutlet sockets, it should be changed to an AC mains lead, complete with moulded
plug, to the appropriate type. If this is not possible, the plug should be cut offHfjd acorrect
one fitted to suit the AG outlet. This should be fused at 5Amps.
If aplugvmmafuse is used, the fuse at the distribution board should NOT BE GF={EATER
than 5Amp.'
'
PLEASE NOTE: THE SEVERED PLUG MUST BE DESTROYEDTO AVO© APOS-
SIBLESHOCK HAZARD SHOULDIT BE INSERTED INTO AI^AMP
SOCKET^ELSiWHERE
The wires In this mains lead an^ coloured In accbrtance with the following code:
BROWN "' —LIVE '
"
As the colours of the wires in the mains lead of this apparatus nay notMrrespond with the
coloured markings identifying the tenminals in your plug, please proceed as follows:
The wire which is coloured GREEN and YELLOW must be connected to the temninai
which is marked vyith the letter Eor with the safety earth symbol ±r or coloured GREEN
,or opitoured GREEN and YELLOW. „, "... ^.
The wire which is coloured BLUE must be conriected ^4 terrtllndl WWOh mkrked
with the letter Nor coloured BLACK.
The wire which is coloured BROWN must be connected to the terminal which is marked
with the letter Lor coloured RED.
THIS APPARATUS MUST BE EARTHED I
Ensure that all the tenninals are §§m^i^^mm^S^ strands of wire exist
Before replacing the plug cover, make certain the conJ grip is clamped ov^rthidutdrsheath
of the lead and not simply over the wires.
6D-En
This equipment conforms to No.82/499/EEC, 87/308 EEC standard.
3A-En
CONFORME AL D.M. 13 APRILE 1989 DIRETTIVA CEE/87/308
,3B-!t

WARRANTY
AKAI Electric Co. Ltd warrants Hs products, when purchased from an authorized AKAI dealer, to be
free from defects in materials and workmanship for aperfbd of 12 (twelve) Wbnths from the date of
purchase. Warranty service is eSeij^ye and awafllable to the original purchaser only, and only on
completion and return qf the AKAI Wajranty l^istraticm Card within 14 days of purchase.
Warranty coverage is valid for factory-authorized updates to AKAI instniments and their software,
whenth«rNrtillatipn ispeifoiinedbyan atithoria^ AKAI Service Centre, an?! apitiperfy completed
Warranty Ftegistration has been returned to your Alcai Professional dealer.
To obtain service under this warranty, the product must, on discovery of the defect, be properly
paclted andshipped to the nearest AKAI Service Centre. Theparty requesting warranty sewice must
provide proof of original ownersh^ and date of purchase bf the prodtid.
If the warranty is valid, AKAI will, without charge for parts or labour, either repair or replace the
defective part(s). Without avalid warranty, the entire cost of the repair (parts and labour) is the
risponsibility of the product's owner.
AKAI warrants that it will make all necessary adjustments, repairs and replacementsikt no cost to the
oHgirtal owner within 12 (tweJ^
1The product fails tol pmUm m^jsi&ffiMl functions dikj to fiaiiu^ of brti or mofe of its
components.
2The product fails to perform its specified functions due to defects in workmanship.
3The product has been maintained and operated by the o%wner in strict acooitjance with the
written instructions for proper maintenance and use as specified in this Operator's Manual.
Befori purchase and use, owners should determine the suitability of the product for their intended
use, and the owner assumes all risk and liability whatsoever in connection therewith. AKAI shall not
be liable for any injury, loss or damage, direct or consequential, arising out of the use, or inability to
use the product.
The warranty provides only those benefits specified, and does not cover defects or repairs needed
as aresult of acts beyond the control of AKAI, including, but not limited to:
1Damage caused by abuse, accident or negligence. AKAI will not cover under warranty any
original factory disk damaged or destroyed as a result of the owner's mishandling.
2Damage caused by any tampering, alteration or modification of the product: operating
software, mecfianical or electronic components.
3Damage caused by failure to maintain and operate the product in strict accordance with the
written instructions for proper maintenance and use as specified in this Operator's Manual.
4Damage caused by repairs or attempted repairs by unauthorized persons.
5Damage caused by fire, smoke, falling objects, water or other liquids, or natural events such
as rain, floods, earthquakes, lightning, tornadoes, storms, etc.
6Damage caused by operation on improper voltages.
IMPOFITANT NOTE: This warranty becomes void if the product or its software is electronically
modified, altered or tampered with 81 any way.
AKAI shall not be liable forcosts involved in packing or preparing the product for shipping, with regard
to time, labour or materials, shipping or freight costs, or time and expenses involved in transporting
the product to and from an AKAI Authorized Service Centre or Authorized Dealer.
AKAI will not cover under warranty an apparent maHunction that is determined to be usererror or the
owner's inability to use the product.
THE DURATION OF ANY OTHER WARRANTIES, WHETHER IMPUED OR EXPRESS INCLUD-
ING BUT NOT UMITED TO THE IMPUED CONDITION OF MERCHANTABILITY, IS UMITED TO
THE DURATION OF THE EXPRESS WARRANTY HEREIN.
AKAI hereby excludes incidental or consequential damages, fewluding but not limited to:
1Loss of time
2Inconvenience
3Delay in perfonmance of the Warranty
4The loss of use of the product
5Commerciat k3ss
6Breachof anyexpress or implied wan'anty. including the Implied Warranty of Merchantability
applicable to this product

Precautions When Using the installed Hard Disk Drive
1. The hard disk drive has extremely high precision and is vulnerable to shock and
vibration. If transporting the 0R8 by either land or air. we recommend packing it in a
shell-shaped case lined with urethane rubber which meets ATA sjjeciflcations.
2. Make sure the DR8 is used Irtth© horizontal position. Do not set It ort end oNit it when
using it. •
3. If the DR8 is moved from acold location to awarm one, or if the temperature has been
raised suddenly, condensatran may fomn inside the DR8. If it is impossible to avoid
conditions like these, let the DRSslttpr atliB^tan houtin the new location before using
When setting up the DR8, make sure the ventilation opening is not blocked. Also, if
using the DRB in aradc that (Xjntains other equipment, make sure sufficient ventilation
space is assured on all mss (a^jrox. 44 mm of space between the DR8 and any
equipmeht mounted aboworbetow ft i

Contents i
Contents
Introduction. i
What is the DR8? ......w............... 1
Signal Flow .;...„................... 3
Level Diagram.......... ......„..;. '. 5
Inside ttte DR8... ^.U... 6
1Front and Rear Panels 7
FrontPand... 7
Rear Panel...... 19
2Getting Around the DR8.....: i.. 24
C^rating Modes 24
Entering Time Vahies „,..,„.........!>..„.„.„.... 27
iSettln^jUp the DR8 29
ITypical DR8 Setup 30
|t Recording..„............ ....,.«.,.:..,„...... 31
Sampling Frequency. ;31
Input Soiirce................. 33
Selecting the fepta* jQuutme^ 35
Starting; Stopping iEfe^^ 38
Pundt-Bti Functions. ...^ 40
Recording Undo 44
C^ii^^3Xits«»»»»«««»»«»»»»«»M««»«,,,»«,«»»,i(,ir)(^ir^04*-*(i-<#,,i,»,,,*,^»4,»,,,, ,,,,,,,,, 45
Starting &Stopping Playbad^....J.:„.... 46
Special Play Ifeys 47
Repeat.... „_...„.....!.„„.„..„... 50
Varispeed 52
6Mixer ...1.;.. . . 53
.Individual Channel Setl^p^»;.u.
SysteittSeHmgs.„:.
ftiapshot Settings .....i!..^.,:!..,.^.;.... 61
Mapping Snapshots 62
Ottwr Functions ,,...„...,.„.,„.. j6i
7Talce Functions 65
Other Take Applications 68
8Locate Functions „......,....^,j^
Direct Locate Points (1-9 Keys) 7(1
Stack Locate Points 71
Last Memory 72
Preroll 73

ii Contents
9Time Display
Setting Relative Time to Zero 75
Setting aRektive Time Offset.... Zl 75
10 Editing ..r:..:.....:,:.;:..,. 77
Undoing an Edit ..„. yg
^^py*'" ........ij«,M.,,,i„.,„.,„ 79
Copy+Insert 3J
^^^^ vivw •82
Move+Insert.,
Insert..
Erase...
Delete.
••"•••••••••^o.'fV************..*..*.....*, ,,,,,,,,,,,,,, 83'
84
85
•• U
Slip 87
11 HardDisics
SCSI ,89
90
Checking for Disks „.„ 5^
External Hard Disk Operating Precautions ZZ. 94
Formatting Diskii........... 95
Erasing Disks ii,„^^i^.^„^i,.,^i:^. %
Aligiting Disks .iL....... .....,^....„., 97
Copying Disks .^.«.!..l.^!.::.,„„i!;:^i 98
12 Backup and Re^reig :, :;„^^^^^^^ loo
^^clcujp •••••••••••••••••••^••,«,,,,,«,^^^^ ,100
l^st^t^ •••<...•• 1021
13 Synchronization ... km
SMPTE/EBU Synchronization 10#
MIDIS^chronii^^ 107
Creating aSong..—...........^,^.,„„„„ 112
Creating a Beat Map... .„.!.. 114
Creating aTempo Map 115
If Other Functidrl^.. .. .. .... .....„..,_
System Set up 116
SCMS ..119
Appendix m
Specifications 120
MIDI Impkmentation Ciiart 122
Block Diagram—125
Index 124
V«sionl.O 11/94 Akai DR8 Hard CHsk Recorder

mtroaucnon i
Infroduction
Fran all at Akai thank you for pvirchasinganAkai Hard Disk R^^ and
wdcome to tite exdting wtnW oflardii^^
Please take the time to read diis manual. It will allow you to get the best out of your
What Is the ORS?
Take aconventional eight-track recorder, replace all fl\e analog circuitry wititi the
latest digital audio processing technology, replace the tape transport with ahard
disk for near-instant digital audio data access, and add a16-chaimel programmable
digital mixer —the result is the DR8.
The DR8 is an 8-track digital hard disk recorder and editor, with abuilt-in digital
mixer. It contains many of the features and functions you would normally expect,
such as CD quality audio, non-destructive editing, etc., but imlike computer-based
^tems, the DR8 is as easy to use as an ordinary multi-track tape recorder.
Features
•8-trabk hard disk recorder \^dth familiar multi-track recorder 0^
•16-diannel programmable digital mixer witih recall (8 tracks ftom hard disk plus
8external audio inputs).
•18-bit 64-times oversampling A/Dconverters.
•20-bit 8-times oversampling D/Aconverters.
•16-bit linear PCM recording.
•17 ciianneliiunutes per 100MB ofhard disk (£s@ 48 kHz).
•Up to six SCSI hard disks can be connected.
•Instant playback start.
•Near-instant data access, no time consuining rewinds, etc.
•Autolocator with 100 locate j)oints.
•Absolute and relative time modes, with sync offeeL
•Beat/tempo map for MIDI aocksynchrcmize operation.
•Adjustable preroll.
•Varispeed playback.
•Pimch in/out includes: manual, auto (witti r^earsal), and footswitch.
•Jog/shuttie COTitrol for locating edits.
•Tske functions allow you to select from five different recordings.
•Edit functions include: copy, copy+insert, move, move+insert, erase, delete, slip,
insert, and edit undo.
•Balanced 1/4inchphonejack analog inputs and ou^uts for 8individual channels
plus two stereo diannels.
VersUxil.O 11/94

2IhtrodiytCticHi
•XLR and RCA/phono distal inputs and outputs (AES/EBU <»? S/PDIF).
•Pad^ to PATvia digital I/O.
•Optional IB-801S SCSI-B interface boardallows you to #3fuieet to
personal computers and other peripheral devices.
•Optional IB-802T SMPTE reader/generator board for time-code synchronization.
•C^tional IB-803M MIDI interfece board for MIDI sequencer synchrcmization.
•Optitml digital EQboard.
Version 1.0 11/94 AJtai DR8 Hard Disk Recorder

Akaii DI^ Hatd DiskltepQrder Version 1.0 lt/94

4Introduction OR8
Description Of 3ignqi Flow
Input
Asignal input to the ANALOG INPUT channels 1to 8passes through the gain
switches (HIGH, MD, LOW) and the GAIN controls. The signal is then converted
to digital I'tislbg ^hf DIG! key wlU switch d«nn^
After digital conversion, the signal goes to the TEiRU MIX channel ON/OFF switch
(which consists of the THRU MIX key and the CHANNEL ONkeys 1to 8). Then it
goes to the INPUT SELECT switches and finally to the hard disk for recording.
At die INPUT SELECT switches, input chanriels 1to 8usually correspond to hard
disk tracks 1to 8. However, you can assign any input cihannel to any ha?d disk
track, phjs you can ako select the BUS Land BUS Rsignals as input.
Press the appropriate TKACK REC keys to record data to the hard disk tracks. You
need to set the recording levels wifli the GAIN controls. Then press tihe Play and
RECkeystor^rd.?!; :::;:i;::::ft1^::':x:;' ;'.
;
Output
Onplayback, the signal from the hard disk tracks passes through the
CHANNELONkeys 1to 8and into the TRACKMIX section of the mixer. In
addition, the signal is sent to the individual ANALOG OUTPUT channels 1to 8.
Unlike the inputs, these output dumnels ape, fixed to the cdresponding hard disk
tracks.-
TRACK MIX ^
In the TRACKMIX section, the signal passes through the equalizer (if the optional
digital EQ board is installed), channel level, pan, and effects send. It is then sent to
the MASTER LEVEL where it is output i|i distal through the DIGITAL I/O -
MASTER OUTor converted iom^and then to fee MA^THER L/R or PHONES
outputs. The signal is also sent to the SEND and BUS channels. On the SEND
channels, it is converl»d to analog and sent to the SEND 1/L-2/R outputs. It only
.app«ffs on the WJS d^inrtib if the BUSQNswilch is selected.
THRU MIX
To send the sigr^il into the THRU MIX section of the mixer, set the THRU MIX
diiinnel ON/OBF switch to on. Pressing the THRU MIX key will turn off all the
LEDs for fee CHANNELONkeys 1to 8(all LEDs are Ut in normal condition). Only
fee signals of fee channels you select wife fee CHA>JNEL ON keys will be routed
to tte THRU MIX secticm. The other channels will remain routed to fee
INPlJrt SElJECr switches, ^
f
Ihe si^^Os sent to theTHRUMD^section are mixed as in the TRACK MDC section
arid w^nyrted to fee MASTEROOX^^^
IWs structure allows you to said astereo signal to fee MASTER OUT outputs that
is amixdown of eight tracks of playback signal from the hard disk in addition to
another eight input chaiinels. i1
jgrigjie BUS ct^^ allcnv$ you to carry out adigital bounce-down recording
(pang-pong) inside the DR8wife littte deterioration in tonal quality I
Version 1.0 11/94 Akai DR8 Hard Disk Recorder

ORB Introduction 5
Level Diagram
AkM DRS Hatd ISisk ttecbrdin^ Version 1.0 11/94

6Introduction CSS
Inside the DR8
i
liiiiiiiiifiiiii
11*111
1
II I IMM, iHi iu> mm
-J 1I
ja«>is scs^e interface
IM»T SWTPE nEAOEfVSiNCflATOfl
ifrWMMIOIINTeRMCS
Oigtal Auino Data Procauor
aONOTM
MO
RfMCffieoMtnaun
OpUOMl RmHitoCanlnl
figflonjiing MmJiu
The DK8HDmodel has an internal hard drive as standard. The model number is printed on
the rear panel
Versionl.0 11/94 Akai DR8 Hard Disk Recorder

rront and Kear ranels /
1Front and Rear Panels
Front Panel
00
00
VetsiOTlX) 11/94

8Front and Rear Panels
(D
ON
OFF
illliiii
~~ ""111
Mm* (.twit
na. Q0:i
em hbx ^^
WiSl tt »«
14*
I—it)
neacr
CD
CHANNELON
CD
t^
H<J<3
pam
ill
®
1)
2)
3)
4)
5)
6)
POWER switch
The rocker part of the f^tyer S*yi% is wcesa^d in ftte ONposition to prevail
Peak Level miftii?
j
These 20-segment FLD (Fluorescent Light Display) baigraphs with peak hold
indicate the playback and source levels. There are eight track level indicators along
with tiie send, blis nmtog, and stereo master levels. The bargraphs are used to
display channdp^iram«6er ^^ftings when the DSRSis in Mbc Mode.
Note: Theserneiersargifiirm A/pconvertm fn Aesi Therefore when the
amber 0dB (Peak) FLD segment H^,it indicates digital distortion. You should adjust
the levels so this never occurs, i; 'r
ALL key •• .,'
.
-
This key is u^ed to arm all tracks for recording. See "Aiming Tracks" on page 38.
DIGKD IN) key
This key sete0s digital inputs for input duuttoels Iancl Z
Select the XLR or the RCA/phono connectors With the DIGICD IN) sub-menu
function. See "Digital Inputs" on page 33,
CHANNEL ONkeysl -8
These keys allow you to select channels for monitoring. See "Monitoring" on
page 43. When you are using ttie Mbc Mode, these keys select the channel you want
to edit Also see "Meeting Mode*" mpage 54.
TRACK RECdNPUT SELECT) keys 1-8
These keys are used to arm fifiacks for recordii^i Aflashing key indicates that atrack
is armed for recording, and $. lit key iruiicates recording in progress. See "Arming
Tracks" on page 38.
Assign the input channel for each track using the TRACK REC(INPUT SELECT)
stib-menu function. Also see "Select on page 35.
V^ionLO 11/94 Akiai DBS Hard t^k. Recorder

rront ana Rear raneis
7) RESET key
This key is used to reset ttie udative time to zero. If it is pressed whUe an absolute
time is displayed, rdative time will besdefcted autdmaticcdly; just like pressing ttie
ABS/RELkey.
8) ABS/REUOFFSET) key
This key switches the display between absolute tprte aifid rdative time. Absolute
time stalls at tero, <sahim his <iae\^,and wtM*^ as tite base time far relative time.
When synchronizing using SMPTE tttriecode, lite ndativeihbde can be xised to set
synchronization offsets.
Set the offset for relative time with the ABS/KEL(QFFSET) sub-menu function.
9) Time and Status display
Ttiis custom FLD (Fluorescent Light Display) £3\pws teicdrding time information
and messages indicating the system status.
TPnte top jrpw of ^Kjne 7^:S<P!gmipt4^^ either afcsplute prreiUitive. It may
also be switdnied to ^owba^
Thebottom row of 14-5egment digits display status, sub-menu, and errca: messages.
Also in this display, the current mode is displayed.
The "BUSY" indicator at the bottom of tiie display shows hard disk activity. Beside
it, arow of small dots show activity for eadx of tite 8tracks and indicate that data
esdsts on the track at Ihe cunent position.
10) LOCATE key
This key is used to enter locate time values. See "Locate Functions" on page 69 and
"Spedfying flie "in" Pont and "out" Point" on page 27

10 Front and Rear Paneis ORB i
11) UNDO key
This key aUows you to mdo the last recpKiingvpE et^^^^^
,,and want to return to the previous recording, likewise,
whenediting you can compare the material before and after an edit. See "Recording
Undo" <m page 44 and "TJiidoir^ an Edit" on page 78.
12) JOG/SHUnLE control ^^..^ ,
The inner JOQy^neiei^^s^^ you tolocate while listening to arecowiing* Playback
speed is detennined by how fast you turn the wheel. Turn it counterclodcwise to
review and clockwise to preview. The effect is similar to reel-rocking on an analog
tape recorder —you can use it to identify edit points precisely. In certain modes
Such as MDC SONG and SUB-KfENfU, this wheel is also used fo^ datsi 6tttry: Turn it
counterclockwise to decrease values and clockwise to increase tiiem.
JLakae tbe JC^^^^^^ the outer SHUTTLE control also allows you to locate while
listening td arecording. The playback speed is determined by the angle at which
you holdthe controL Turn it counterclockwise to review and clockwise to preview.
The SHUTTLE control is also used to move the cursor (input point) whensetting
certain parameter values. See "Cursor" on page 25.
13) FINE key
This key allows you to increase the resolution of the jog wheel for more precise
selection of time location points.
14) JOG ON key
This key allows you to switch the JOG/SHUTTLE ccaitrol ori and of. When the
LED is lit the JOG/SHUTTLE control canbe vised to locate while listening to a
recording. Ofluawise/ the JOG/SHUTTLE control cannot be used to locate.
15) ESCAPE key
This key can be used to escape from the current edit or sub-menu function.
16) STORE/ENTkey
This key is used when entering and storing time values, executing edit functions,
etc.
Version 1.0 11/94 Akai PR8 Hard Disk Recorder

front and Kear Panels 11
17) Numerick©ypddO(DISI0,2(DIGI).3(SETUP),4(UTIUTY).5.6.7.8.9
set parameter values.
You can perform avariety of operations on Jhe h^a?$^^isk^vi&lJSm:^(J^>^ '
sub-menu functions.
Set the sampling frequency and other related functions with the 2(DIGI) sub-menu
jFunctians.
Mjust the display brigjitness, dreg) the sub-frame notation, and
controller nuflibets t/\^6h lhS3{^BP)MB%M See •'System Set up" on
..page 116. ^^
The 4{UT[LnY) sub-menu functions are jis^ for data exchange between the DR8
and Ihe DD1500. Afuture software release wfll support MO drives and allow
communication vwth the DD1500. See your Akai professional deal# Ibr mote
,,,,,„,,,, .details. ^,„,„,
18) LAST 0/- key
mskey is used to locate to the last twp points at which the stop key was pressed.
jPress the key once to locate to the last point at which the stop key was pressed.
Press again to locate to the previous point See "Last Memory" on page 72.
Thte key is also used for entering time and parameter valiies, and iafttering negative
values.
19) PREROLl(nME)key
TWs key is used to switch on the preroiJ function. PreroU allows you to locate to a
point afew seconds before aspecified point, for example, to provide acount-in to
an overdub. See TreroH" on page 73.
The preroU value is set using the PREROtL(TlME) sub menu function.
20) :/STACK key
This key is used to enter and recall the 100 stack locate points (00-99). It is also used
as ashcMtcut during locate data entry. See "Stack Locate Points" on page 71.
AMIMS HaitiDisk R«ji^^^ Vmiohlij 11/94