Doremi Labs V1-400 Series User manual

Doremi Labs, Inc.
306 E. Alameda Avenue, Burbank, CA 91502
USA
V1
User's Manual
Version 4.08
(09/01)
For use with V1 - 400 series
(Serial# 4000 and above)

2
TABLE OF CONTENTS
WARRANTY............................................................................................................................... 5
WARNING................................................................................................................................... 6
AVIS ............................................................................................................................................. 6
PROTECTING YOURSELF AND THE V1............................................................................ 6
CE NOTICE ................................................................................................................................ 8
INTRODUCTION....................................................................................................................... 9
1SETUP GUIDE.................................................................................................................. 11
1.1 QUICK START GUIDE .................................................................................................. 11
1.2 INSTRUCTIONS FOR INITIAL SETUP & TRANSPORT IMPORTANT!!............ 12
REMOVE THE SCSI TERMINATION ON REAR (LEAVING IT MAY BREAK THE SCSI CONNECTOR DURING
TRANSPORT). ............................................................................................................................. 12
1.3 SETUP OF TWO OR MORE DRIVES USING SINGLE FILE SYSTEM................................ 12
1.4 SETUP OF TWO OR MORE DRIVES USING MULTI FILE SYSTEM ................................... 12
2FRONT PANEL DESCRIPTION.................................................................................... 13
2.1 SCSI DRIVES............................................................................................................... 13
2.2 LCD TIME CODE DISPLAY.......................................................................................... 13
2.3 NUMERIC KEYPAD ...................................................................................................... 14
2.4 TRANSPORT CONTROLS .............................................................................................. 14
2.5 FUNCTION KEYS.......................................................................................................... 14
3REAR PANEL CONNECTIONS.................................................................................... 16
3.1 HARDWARE SETUP OF THE MIDI AND BI-PHASE INPUT................................ 19
3.2 THE GPIO OPTION CARD............................................................................................ 19
4MENU SELECTIONS...................................................................................................... 21
4.1 STANDARD MENU ....................................................................................................... 21
4.2 OPTIONS MENU........................................................................................................... 25
5RECORDING & PLAYBACK ........................................................................................ 32
5.1 RECORDING................................................................................................................. 32
5.1.1 STANDARD (CRASH) RECORDING PROCEDURE......................................... 32
5.1.2 OVERDUBBING VIDEO & AUDIO TRACKS ................................................... 32
5.1.3 OVERDUBBING/INSERT OF VIDEO ONLY or AUDIO ONLY ....................... 32
5.1.4 TIME CODE OFFSET........................................................................................ 32
5.2 SPECIAL PLAYBACK FUNCTIONS....................................................................... 33
5.2.1 OPTION PLAY Command or Chase Command.................................................. 33
5.2.2 CHASE to LTC Time Code mode........................................................................ 33
5.2.3 CHASE to RS422 or Serial Time Code mode...................................................... 33
5.2.4 CHASE to BI-PHASE mode ................................................................................ 33
5.2.5 SEGMENT DEFINITION & PLAYBACK........................................................... 34
5.2.6 PLAY LIST & LOOPING .................................................................................... 34
5.2.7 REMAINING TIME OF A SEGMENT DURING PLAYBACK............................ 35
5.2.8 REVERSE PLAY.................................................................................................. 35
5.3 DELAYED PROGRAMMING................................................................................... 36
5.3.1 Introduction......................................................................................................... 36
5.3.2 Rear Panel Connection ....................................................................................... 36

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5.3.3 Preparing the units.............................................................................................. 36
5.3.3.1 The Recorder................................................................................................... 36
5.3.3.2 The Player........................................................................................................ 36
5.3.4 Preparing the drive ............................................................................................. 36
5.3.5 Running the system.............................................................................................. 37
5.3.6 Link2V1 utility:.................................................................................................... 37
5.4 SLOW MOTION ............................................................................................................ 38
5.4.1 Introduction......................................................................................................... 38
5.4.2 Rear Panel Connection ....................................................................................... 38
5.4.3 Preparing the units.............................................................................................. 38
5.4.3.1 The Recorder................................................................................................... 38
5.4.3.2 The Player........................................................................................................ 38
5.4.4 Preparing the drive ............................................................................................. 39
5.4.5 Running the system.............................................................................................. 39
5.4.6 Using a DNF ST-300 Slow Motion Controller:.................................................. 39
5.4.7 Link2V1 utility:.................................................................................................... 39
5.5 USING DISCONTINUOUS TIME CODE ON A DRIVE......................................... 40
5.5.1 INCREASING TIME CODE................................................................................ 40
5.5.2 NON INCREASING TIME CODE....................................................................... 40
5.5.3 REPEATING TIME CODE ................................................................................. 40
6CONTROLLING THE V1 FROM A PC OR MAC...................................................... 41
7UPGRADING THE V1 FIRMWARE............................................................................. 42
8WIRING DIAGRAMS AND PINOUTS ......................................................................... 43
8.1 WIRING OF THE V1 RS422-PC CABLE ....................................................................... 43
8.2 WIRING OF THE V1 RS422-MAC CABLE .................................................................... 44
8.3 WIRING OF THE STANDARD RS422 CABLE ................................................................ 45
8.4 WIRING OF THE RS422 CHASE CABLE........................................................................ 46
8.5 GPIO CONNECTOR PINOUT ........................................................................................ 47
8.6 MIDI
AND BIPHASE CONNECTOR PINOUT: ................................................................ 47
9DISK RECORD TIMES FOR VARIOUS COMPRESSION RATIOS....................... 48
9.1 NTSC M-JPEG COMPRESSION CHART ACCORDING TO CCIR-601........................... 48
9.2 PAL M-JPEG COMPRESSION CHART ACCORDING TO CCIR-601.............................. 49
9.3 MPEG2 COMPRESSION - NTSC CHART AT 720X480 ................................................ 50
9.4 MPEG2 COMPRESSION – PAL CHART AT 720X480 .................................................. 50
9.5 STANDARD DEFINITION UNCOMPRESSED – PAL/NTSC............................................ 51
9.6 HIGH DEFINITION UNCOMPRESSED............................................................................ 51
10 USING THE RCV9P-V1 REMOTE CONTROL ...................................................... 52
11 APPLICATION AND TROUBLESHOOTING INFORMATION.......................... 53
11.1 UNABLE TO CONTROL V1 REMOTELY ........................................................................ 53
11.2 QUICK TOGGLE BETWEEN SHUTTLE & JOG MODES ............................................... 53
11.3 RECORDING IN CASE OF TAPE DROP-OUT.................................................................... 53
11.4 V1 IDENTIFICATION FOR DAW ON THE RS422 PORT .................................................. 53
11.5 THE UNIT IS NOT PLAYING SMOOTHLY IN REVERSE PLAY ......................................... 53
11.6 MODES OF OPERATION WITH MULTIPLES DRIVES ...................................................... 53
11.7 THE VIDEO HAS NO COLORS ....................................................................................... 53
11.8 NO AUDIO FROM INPUT MONITOR.............................................................................. 54
11.9 UNABLE TO WRITE TO ACTIVE DRIVE......................................................................... 54
12 CONNECTING V1 TO AUDIO WORKSATIONS & EDIT CONTROLLERS.... 55

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12.1 CONNECTION TO THE DAWN WORKSTATION (V 4.3C OR LATER) ............................ 55
12.2 CONNECTION TO THE AKAI DD-1500 WITH RS422 CONTROL (RECOMMENDED)..... 55
12.3 CONNECTION TO THE AKAI DD-1500 IN CHASE RS422 MODE............................... 55
12.4 CONNECTION TO THE FAIRLIGHT ............................................................................... 56
12.5 CONNECTION TO THE MICROLYNX, THE LYNX 1 AND LYNX 2 SYNCHRONIZERS..... 56
12.6 CONNECTION TO THE SONIC SOLUTIONS ................................................................... 56
12.7 CONNECTION TO THE PRO-TOOLS 4.0........................................................................ 56
12.8 CONNECTION TO THE ORBAN AUDICY VX.............................................................. 57
12.9 CONNECTION TO THE DYAXIS II................................................................................. 57
12.10 MOST COMMON CONNECTION ............................................................................... 57
12.11 LIST OF DAWS & EDITORS CURRENTLY SUPPORTED BY THE V1(*) ...................... 58
12.12 USING THE V1 WITH EDIT CONTROLLERS ............................................................. 58
13 INSTALLING SCSI DRIVES...................................................................................... 60
13.1 V1
AND REMOVABLE SCSI DRIVES............................................................................ 60
13.2 IMPORTANT NOTE ABOUT USING JAZ DRIVES............................................................ 60
13.3 MOUNTING DATA-EXPRESS ON ALL JPEG PRODUCTS EXCEPT V1BX2..................... 61
13.4 MOUNTING DATA-EXPRESS ON THE V1BX2 WITHOUT DRIVE SHARING................... 62
13.5 MOUNTING DATA-EXPRESS ON THE V1BX2 SHARING A DRIVE ................................ 62
13.6 MOUNTING DATA-EXPRESS ON THE V1U.................................................................. 62
13.7 MOUNTING DATA-EXPRESS ON THE V1MP2............................................................. 62
13.8 SETUP OF THE SEAGATE ULTRA SCSI HARD DRIVES................................................. 63
13.9 SETUP OF THE MAGNETO-OPTICAL DRIVE (MOD) NIKON BELUGA DD53.......... 64

5
WARRANTY
Doremi’s warranty obligations are limited to the terms set forth below:
Doremi Labs, Inc. (“Doremi”) warrants this hardware product against defects in materials and
workmanship for a period of ONE (1) YEAR from the date of original retail purchase.
If you discover a defect, Doremi will, at its option, repair, replace, or refund the purchase price of this
product at no charge to you, provided you return it during the warranty period, with transportation
charges prepaid, to the authorized Doremi distributor from whom you purchased it or to any other
authorized Doremi distributor within the country of original retail purchase. (You can obtain additional
information by contacting Doremi at the address printed on this certificate). To each product returned for
warranty service, please attach your name, address, telephone number, and a copy of the bill of sale
bearing the appropriate Doremi serial numbers as proof of date of the original retail purchase.
If your product fails during the warranty period while you are out of the country of original retail
purchase, you may have it repaired (no refunds or replacements are provided) at your expense by an
authorized Doremi distributor in the country in which the product failed. You may obtain a refund for the
repair costs by submitting a claim to Doremi (instructions are obtained by contacting Doremi at the
address printed on this certificate).
This warranty applies only to hardware products manufactured by or for Doremi that can be identified by
the “V1” trademark, trade name, or logo affixed on them. Doremi software is warranted pursuant to a
separate written statement packed with the software. Doremi does not warrant any products that are not
Doremi products. Note that most third-party products have a manufacturers' warranty. This warranty
does not apply if the product has been damaged by accident, abuse, misuse, or misapplication; if the
product has been modified without the written permission of Doremi; or if any Doremi serial number has
been removed or defaced.
THE WARRANTY AND REMEDIES SET FORTH ABOVE ARE EXCLUSIVE AND IN LIEU OF
ALL OTHERS, WHETHER ORAL OR WRITTEN, EXPRESS OR IMPLIED. DOREMI
SPECIFICALLY DISCLAIMS ANY AND ALL IMPLIED WARRANTIES, INCLUDING, WITHOUT
LIMITATION, WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. No Doremi distributor, agent, or employee is authorized to make any modification,
extension, or addition to this warranty.
DOREMI IS NOT RESPONSIBLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES RESULTING FROM ANY BREACH OF WARRANTY, OR UNDER ANY OTHER
LEGAL THEORY, INCLUDING BUT NOT LIMITED TO LOST PROFITS, DOWNTIME,
GOODWILL, DAMAGE TO OR REPLACEMENT OF EQUIPMENT AND PROPERTY, AND ANY
COSTS OF RECOVERING, REPROGRAMMING, OR REPRODUCING ANY PROGRAM OR DATA
STORED IN OR USED WITH DOREMI PRODUCTS.
Doremi Labs, Inc.
306 E. Alameda Avenue.
Burbank, CA 91502

6
WARNING
THIS APPARATUS MUST BE EARTHED
IMPORTANT
WARNING
Power requirements for electrical equipment vary from area to area. Please ensure that your V1 meets the
power requirements in your area. If in doubt, consult a qualified electrician or Doremi Labs, Inc. dealer.
120VAC @60Hz for USA and CANADA rating 1A
220-230/240VAC @50Hz for Europe rating 0.5A
240VAC @50Hz for Australia rating 0.5A
AVIS
Le voltage peut differer d’un pays a l’autre. Il faut que le V1 soit ajuste au voltage du pays.
LA SOURCE DE PUISSANCE DOIT AVOIR UN CONDUCTEUR CONNECTE A LA TERRE.
Toutes reparations doient etre effectuees par une personne qualifiee.
AFIN D’EVITER UN CHOC ELECTRIQUE, VEUILLEZ NE PAS ENLEVER LE CAPOT.
PROTECTING YOURSELF AND THE V1
Never touch the AC plug with wet hands
Always disconnect the V1 from the power supply by pulling on the plug, not the cord.
Allow only a Doremi Labs, Inc. dealer or qualified professional engineer to repair or reassemble the V1.
Apart from voiding the warranty, unauthorized engineers might touch live internal parts and receive a
serious electric shock
Do not put, or allow anyone to put any object, especially metal objects into the V1
Use only an AC power supply. Never use a DC power supply.
If water or any other liquid is spilled into or onto the V1, disconnect the power, and call your dealer.
Make sure the unit is well ventilated, and away from direct sunlight.
To avoid damage to internal circuitry, as well as the external finish, keep the V1 away from sources of
direct heat (stoves, radiators, etc.).
Avoid using aerosol insecticides, etc. near the V1. They may damage the surface, and may ignite.
Do not use denatured alcohol, thinner or similar chemicals to clean the DR8. They will damage the
finish.
Modification of this equipment is dangerous, and can result in the functions of the V1 being impaired.
Never attempt to modify the equipment in any way.
In order to ensure optimum performance of your V1, select the setup location carefully, and make sure
the equipment is used properly. Avoid setting up the V1 in the following locations:
1. In a humid or dusty environment
2. In a room with poor ventilation
3. On a surface which is not horizontal
4. Inside a vehicle such as a car, where it will be subject to vibration
5. In an extremely hot or cold environment

7
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN !
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
The lightning flash with the arrowhead symbol superimposed
across a graphical representation of a person, within an equilateral
triangle, is intended to alert the user to the presence of uninsulated
“dangerous voltage” within the product’s enclosure; that may be
of sufficient ma
g
nitude to constitute a risk of electric shock.
!The exclamation point within an equilateral triangle is intended to
alert the user to the presence of important operating and
maintenance (servicing) instructions in the literature
accompanying the appliance.
WARNING!!
To prevent fire or shock hazard, do not expose this appliance to rain or moisture

8
CE NOTICE
Marking by the symbol indicates compliance of the device to the EMC (Electromagnetic
Compatibility) directive and to the Low Voltage directive of the European Community. Such marking is
indicative that this device meets or exceeds the following technical standard:
• EN 55022 "Limits and Methods of Measurement of Radio Interface Characteristics of Information
Technology Equipment."
A "Declaration of Conformity" in accordance with the above standard has been made and is on file at
Doremi Labs, Europe, Valbonne, France.

9
INTRODUCTION
Thank you for your V1 purchase. The V1 is a random access digital disk recorder that uses
magnetic drives (hard drives) as a recording medium.
To record video on a hard drive it should be digitized which means that the analog video
information must be converted to a digital data stream. Every NTSC video frame contains 525
lines that have 858 pixels each, however, only 480 lines with 720 pixels each are used to hold
picture information.
The table below indicates the bit rate standard definition (SD) and high definition (HD) video
without the use of compression.
Resolution 8 bit encoding 8 bit encoding 10 bit encoding 10 bit encoding
Mbits/sec MBytes/sec Mbits/sec MBytes/sec
SD 720x480 (NTSC) 166 20.7 207 25.89
SD 720x576 (PAL) 166 20.7 207 25.89
HD 1920x1080x60Hz 995 124.4 1244 155.5
HD 1920x1080x59.94Hz 994 124.3 1243 155.4
HD 1920x1080x50Hz 829 103.7 1037 129.6
HD 1920x1080x30P 995 124.4 1244 155.5
HD 1920x1080x25P 829 103.7 1037 129.6
HD 1920x1080x24P 796 99.5 995 124.4
HD 1280x760x60P 934 116.7 1167 145.9
HD 1280x760x50P* 778 97.3 973 121.6
*Not implemented.
The V1 line of products covers uncompressed video recorders (8 and 10 bit encoding) for the
highest quality possible and compressed video recorders (8 bit encoding) for applications that do
not require highest quality. When using compression, the trade off is between storage
requirement and video quality.
V1 Uncompressed
The V1-U series records the video directly on the hard drive without the use of compression.
(V1-U for standard definition video and the V1-UHD for HDTV video).
V1 Compress Video ( JPEG vs MPEG2 )
Doremi’s V1 product line includes models that use motion JPEG compression (the V1, V1m,
V1d, and V1bx2) and MPEG2 compression (V1-MP2).
Motion JPEG consists of compressing every field of video and saving the data on the drive.
MPEG2 compresses only a few frames/sec called I frames and then recording the motion
between each new frame and the I frame. MPEG2 compression requires very sophisticated
techniques but yields a better transfer rate than JPEG for the same video quality. Since the price
of the media is going down day after day, the MJPEG solution is still the most viable solution for
a lot of applications. MPEG2 will yield a better quality when recording on DVD-RAM drives
and larger servers can be built with MPEG2 units. MPEG2 also offers higher image quality than
MJPEG.
The CBS algorithm
The V1 uses a constant block size (CBS) algorithm. With traditional compression algorithms,
depending on video complexity, the size of each compression field can vary thus requiring

10
maintaining a list to indicate the start of each field on the drive. With CBS all fields have the
same maximum size. Consequently, CBS does not require maintaining a list indicating the start
of each field because they are all the same size. This results in a more reliable disk recorder with
faster video access and frame accurate recording.
Audio and Time Code
In addition to the video, and regardless of the compression ratio used, the V1 records 0, 2, 4, 6 or
8 tracks of uncompressed audio (sampled at 48Khz). Each audio sample is coded on 2 bytes
(2*2*48000= 192 KB/s) and every field of time code is sampled on 80 bytes (29.97*2*80= 4.795
KB/s for 2 channels in NTSC and 25*2*6= 4 KB/s for 2 channels in PAL). The V1 can also
record up to 8 channels of AES/EBU digital audio.
Hopefully this introduction has explained to the reader the basic technical principles of digital
disk recording.