Orban OPTIMOD 6300 Operating Manual
Operating Manual
OPTIMOD
6300
Digital Multipurpose Audio Processor
Version 1.1 Software
IMPORTANT NOTE: Refer to the unit’s rear panel for your Model Number.
Model Number: Description:
6300 OPTIMOD 6300 audio processor for digital audio
transmission channels. Digital I/O, Protection Structure, 2-band Structure with CBS Loudness Controller,
5-band Structure. 85-250V operation at 50-60 Hz via
universal switching power supply. Switchable to flat,
50µs or 75µs preemphasis.
MANUAL:
Part Number: Description:
96119.110.03 6300 Operating Manual
CAUTION:
NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE COVER (OR BACK).
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK,
DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
This symbol, wherever it appears, alerts you to
the presence of uninsulated dangerous voltage
inside the enclosure voltage that may be
sufficient to constitute a risk of shock.
This symbol, wherever it appears, alerts you to important
operating and maintenance instructions in the accompa-
nying literature. Read the manual.
In accordance to the WEEE (waste electrical and electronic equipment) directive of the European Parliament, this product must not be discarded into the
municipal waste stream in any of the Member States. This product may be
sent back to your Orban dealer at end of life where it will be reused or recycled
at no cost to you.
If this product is discarded into an approved municipal WEEE collection site or
turned over to an approved WEEE recycler at end of life, your Orban dealer
must be notified and supplied with model, serial number and the name and
location of site/facility.
Please contact your Orban dealer for further assistance.
www.orban.com
IMPORTANT SAFETY INSTRUCTIONS
All the safety and operating instructions should be read before the appliance is operated.
Retain Instructions: The safety and operation instructions should be retained for future reference.
Heed Warnings: All warnings on the appliance and in the operating instructions should be adhered to.
Follow Instructions: All operation and user instructions should be followed.
Water and Moisture: The appliance should not be used near water (e.g., near a bathtub, washbowl, kitchen sink, laundry tub, in a wet base-
ment, or near a swimming pool, etc.).
Ventilation: The appliance should be situated so that its location or position does not interfere with its proper ventilation. For example, the appli-
ance should not be situated on a bed, sofa, rug, or similar surface that may block the ventilation openings; or, placed in a built-in installation, such as a
bookcase or cabinet that may impede the flow of air through the ventilation openings.
Heat: The appliance should be situated away from heat sources such as radiators, heat registers, stoves, or other appliances (including amplifiers)
that produce heat.
Power Sources: The appliance should be connected to a power supply only of the type described in the operating instructions or as marked on
the appliance.
Grounding or Polarization: Precautions should be taken so that the grounding or polarization means of an appliance is not defeated.
Power-Cord Protection: Power-supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or
against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from the appliance.
Cleaning: The appliance should be cleaned only as recommended by the manufacturer.
Non-Use Periods: The power cord of the appliance should be unplugged from the outlet when left unused for a long period of time.
Object and Liquid Entry: Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through openings.
Damage Requiring Service: The appliance should be serviced by qualified service personnel when: The power supply cord or the plug has
been damaged; or Objects have fallen, or liquid has been spilled into the appliance; or The appliance has been exposed to rain; or The appliance
does not appear to operate normally or exhibits a marked change in performance; or The appliance has been dropped, or the enclosure damaged.
Servicing: The user should not attempt to service the appliance beyond that described in the operating instructions. All other servicing should be
referred to qualified service personnel.
The Appliance should be used only with a cart or stand that is recommended by the manufacturer.
Safety Instructions (European)
Notice For U.K. Customers If Your Unit Is Equipped With A Power Cord.
WARNING: THIS APPLIANCE MUST BE EARTHED.
The cores in the mains lead are coloured in accordance with the following code:
GREEN and YELLOW - Earth BLUE - Neutral BROWN - Live
As colours of the cores in the mains lead of this appliance may not correspond with the coloured markings identifying the terminals in your plug, proceed as follows:
The core which is coloured green and yellow must be connected to the terminal in the plug marked with the letter E, or with the earth symbol, or coloured green, or green and yellow.
The core which is coloured blue must be connected to the terminal marked N or coloured black.
The core which is coloured brown must be connected to the terminal marked L or coloured red.
The power cord is terminated in a CEE7 / 7 plug (Continental Europe). The green / yellow wire is connected directly to the unit's chassis. If you need to
change the plug and if you are qualified to do so, refer to the table below.
WARNING: If the ground is defeated, certain fault conditions in the unit or in the system to which it is connected can result in full line voltage between
chassis and earth ground. Severe injury or death can then result if the chassis and earth ground are touched simultaneously.
Conductor WIRE COLOR
Normal Alt
L LIVE BROWN BLACK
N NEUTRAL BLUE WHITE
E EARTH GND GREEN-YELLOW GREEN
AC Power Cord Color Coding
Safety Instructions (German)
Gerät nur an der am Leistungsschild vermerkten Spannung und Stromart betreiben.
Sicherungen nur durch solche, gleicher Stromstärke und gleichen Abschaltverhaltens ersetzen. Sicherungen nie überbrücken.
Jedwede Beschädigung des Netzkabels vermeiden. Netzkabel nicht knicken oder quetschen. Beim Abziehen des Netzkabels den
Stecker und nicht das Kabel enfassen. Beschädigte Netzkabel sofort auswechseln.
Gerät und Netzkabel keinen übertriebenen mechanischen Beaspruchungen aussetzen.
Um Berührung gefährlicher elektrischer Spannungen zu vermeiden, darf das Gerät nicht geöffnet werden. Im Fall von Betriebsstörungen darf das Gerät nur Von befugten Servicestellen instandgesetzt werden. Im Gerät befinden sich keine, durch den Benutzer
reparierbare Teile.
Zur Vermeidung von elektrischen Schlägen und Feuer ist das Gerät vor Nässe zu schützen. Eindringen von Feuchtigkeit und
Flüssigkeiten in das Gerät vermeiden.
Bei Betriebsstörungen bzw. nach Eindringen von Flüssigkeiten oder anderen Gegenständen, das Gerät sofort vom Netz trennen und
eine qualifizierte Servicestelle kontaktieren.
Safety Instructions (French)
On s'assurera toujours que la tension et la nature du courant utilisé correspondent bien à ceux indiqués sur la plaque de l'appareil.
N'utiliser que des fusibles de même intensité et du même principe de mise hors circuit que les fusibles d'origine. Ne jamais
shunter les fusibles.
Eviter tout ce qui risque d'endommager le câble seceur. On ne devra ni le plier, ni l'aplatir. Lorsqu'on débranche l'appareil,
tirer la fiche et non le câble. Si un câble est endommagé, le remplacer immédiatement.
Ne jamais exposer l'appareil ou le câble ä une contrainte mécanique excessive.
Pour éviter tout contact averc une tension électrique dangereuse, on n'oouvrira jamais l'appareil. En cas de dysfonctionnement,
l'appareil ne peut être réparé que dans un atelier autorisé. Aucun élément de cet appareil ne peut être réparé par l'utilisateur.
Pour éviter les risques de décharge électrique et d'incendie, protéger l'appareil de l'humidité. Eviter toute pénétration
d'humidité ou fr liquide dans l'appareil.
En cas de dysfonctionnement ou si un liquide ou tout autre objet a pénétré dans l'appareil couper aussitôt l'appareil
de son alimentation et s'adresser à un point de service aprésvente autorisé.
Safety Instructions (Spanish)
Hacer funcionar el aparato sólo con la tensión y clase de corriente señaladas en la placa indicadora de características.
Reemplazar los fusibles sólo por otros de la misma intensidad de corriente y sistema de desconexión. No poner nunca los fusibles en
puente.
Proteger el cable de alimentación contra toda clase de daños. No doblar o apretar el cable. Al desenchufar, asir el enchufe y no el
cable. Sustituir inmediatamente cables dañados.
No someter el aparato y el cable de alimentación a esfuerzo mecánico excesivo.
Para evitar el contacto con tensiones eléctricas peligrosas, el aparato no debe abrirse. En caso de producirse fallos de funcionamiento,
debe ser reparado sólo por talleres de servicio autorizados. En el aparato no se encuentra ninguna pieza que pudiera ser reparada por
el usuario.
Para evitar descargas eléctricas e incendios, el aparato debe protegerse contra la humedad, impidiendo que penetren ésta o líquidos
en el mismo.
En caso de producirse fallas de funcionamiento como consecuencia de la penetración de líquidos u otros objetos en el aparato,
hay que desconectarlo inmediatamente de la red y ponerse en contacto con un taller de servicio autorizado.
Safety Instructions (Italian)
Far funzionare l'apparecchio solo con la tensione e il tipo di corrente indicati sulla targa riportante i dati sulle prestazioni.
Sostituire i dispositivi di protezione (valvole, fusibili ecc.) solo con dispositivi aventi lo stesso amperaggio e lo stesso comportamento
di interruzione. Non cavallottare mai i dispositivi di protezione.
Evitare qualsiasi danno al cavo di collegamento alla rete. Non piegare o schiacciare il cavo. Per staccare il cavo, tirare la presa e mai
il cavo. Sostituire subito i cavi danneggiati.
Non esporre l'apparecchio e il cavo ad esagerate sollecitazioni meccaniche.
Per evitare il contatto con le tensioni elettriche pericolose, l'apparecchio non deve venir aperto. In caso di anomalie di funzionamento
l'apparecchio deve venir riparato solo da centri di servizio autorizzati. Nell'apparecchio non si trovano parti che possano essere riparate
dall'utente.
Per evitare scosse elettriche o incendi, l'apparecchio va protetto dall'umidità. Evitare che umidità o liquidi entrino nell'apparecchio.
In caso di anomalie di funzionamento rispettivamente dopo la penetrazione di liquidi o oggetti nell'apparecchio, staccare immediatamente
l'apparecchio dalla rete e contattare un centro di servizio qualificato.
PLEASE READ BEFORE PROCEEDING!
Manual
The Operating Manual contains instructions to verify the proper operation of this unit and initialization of certain options.
You will find these operations are most conveniently performed on the bench before you install the unit in the rack.
Please review the Manual, especially the installation section, before unpacking the unit.
Trial Period Precautions
If your unit has been provided on a trial basis:
You should observe the following precautions to avoid reconditioning charges in case you later wish to return the unit to
your dealer.
(1) Note the packing technique and save all packing materials. It is not wise to ship in other than the factory carton. (Re-
placements cost $35.00).
(2) Avoid scratching the paint or plating. Set the unit on soft, clean surfaces.
(3) Do not cut the grounding pin from the line cord.
(4) Use care and proper tools in removing and tightening screws to avoid burring the heads.
(5) Use the nylon-washered rack screws supplied, if possible, to avoid damaging the panel. Support the unit when tighten-
ing the screws so that the threads do not scrape the paint inside the slotted holes.
Packing
When you pack the unit for shipping:
(1) Tighten all screws on any barrier strip(s) so the screws do not fall out from vibration.
(2) Wrap the unit in its original plastic bag to avoid abrading the paint.
(3) Seal the inner and outer cartons with tape.
If you are returning the unit permanently (for credit), be sure to enclose:
The Manual(s)
The Registration / Warranty Card
The Line Cord
All Miscellaneous Hardware (including the Rack Screws and Keys)
The Extender Card (if applicable)
The Monitor Rolloff Filter(s) (OPTIMOD-AM only)
The COAX Connecting Cable (OPTIMOD 6300 and OPTIMOD 6300 only)
Your dealer may charge you for any missing items.
If you are returning a unit for repair, do not enclose any of the above items.
Further advice on proper packing and shipping is included in the Manual (see Table of Contents).
Trouble
If you have problems with installation or operation:
(1) Check everything you have done so far against the instructions in the Manual. The information contained therein is
based on our years of experience with OPTIMOD and broadcast stations.
(2) Check the other sections of the Manual (consult the Table of Contents and Index) to see if there might be some sug-
gestions regarding your problem.
(3) After reading the section on Factory Assistance, you may call Orban Customer Service for advice during normal Cali-
fornia business hours. The number is (1) 510 / 351-3500.
This equipment generates, uses, and can radiate radio-frequency energy. If it is not installed
and used as directed by this manual, it may cause interference to radio communication. This
equipment complies with the limits for a Class A computing device, as specified by FCC
Rules, Part 15, subject J, which are designed to provide reasonable protection against such
interference when this type of equipment is operated in a commercial environment. Operation
of this equipment in a residential area is likely to cause interference. If it does, the user will be
required to eliminate the interference at the user’s expense.
This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in the radio Interference Regulations of the Canadian Department of
Communications. (Le present appareil numerique n’emet pas de bruits radioelectriques depassant les limites applicables aux appareils numeriques [de las class A] prescrites dans le
Reglement sur le brouillage radioelectrique edicte par le ministere des Communications du
Canada.)
Perform the installation under static control conditions. Simply walking across a rug can generate a static charge of 20,000 volts. This is the spark or shock you may have felt when
touching a doorknob or some other conductive surface. A much smaller static discharge is
likely to destroy one or more of the CMOS semiconductors employed in OPTIMOD 6300.
Static damage will not be covered under warranty.
There are many common sources of static. Most involve some type of friction between two
dissimilar materials. Some examples are combing your hair, sliding across a seat cover or
rolling a cart across the floor. Since the threshold of human perception for a static discharge
is 3000 volts, you will not even notice many damaging discharges.
Basic damage prevention consists of minimizing generation, discharging any accumulated
static charge on your body or workstation, and preventing that discharge from being sent to or
through an electronic component. You should use a static grounding strap (grounded through
a protective resistor) and a static safe workbench with a conductive surface. This will prevent
any buildup or damaging static.
WARNING
WARNING
IMPORTANT
U.S. patents 4,208,548; 4,460,871; and U.K. patent 2,001,495. protect OPTIMOD 6300.
Other patents pending.
Orban and Optimod are registered trademarks.
All trademarks are property of their respective companies.
This manual is part number 96119.110.03. Published April 2009.
© Copyright Orban
8350 East Evans Suite C4, Scottsdale, AZ 85260 USA
Phone: +1 480 403-8300; Fax: +1 480 403-8301; E-Mail: support@orban.com; Site: www.orban.com
Operating Manual
OPTIMOD
6300
Digital Multipurpose Audio Processor
Version 1.1 Software
Table of Contents
Index.........................................................................................................................0-7
Section 1 Introduction
.........................................................................................................................................1-1
ABOUT THIS MANUAL.......................................................................................................1-1
THE OPTIMOD 6300 DIGITAL AUDIO PROCESSOR..............................................................1-1
User-Friendly Interface............................................................................................1-2
Absolute Control of Peak Modulation...................................................................1-2
Flexible Configuration ............................................................................................1-2
Adaptability through Multiple Audio Processing Structures ...............................1-3
Controllable .............................................................................................................1-4
PRESETS IN OPTIMOD 6300 ............................................................................................1-5
Factory Presets .........................................................................................................1-5
User Presets..............................................................................................................1-6
INPUT/OUTPUT CONFIGURATION ........................................................................................1-6
Digital AES3 Left/Right Input/Outputs...................................................................1-6
Analog Left/Right Input/Output.............................................................................1-7
Remote Control Interface .......................................................................................1-8
Computer Interface .................................................................................................1-8
RS-232 Serial Port ............................................................................................................. 1-8
RJ45 Ethernet Connector ................................................................................................. 1-8
LOCATION OF OPTIMOD 6300 ........................................................................................1-9
At the transmitter is best ................................................................................................. 1-9
Where access to the transmitter is not possible ............................................................. 1-9
OPTIMOD 6300 at the transmitter: gain control before the STL ................................. 1-10
USING OPTIMOD 6300 AS A STUDIO LEVEL CONTROLLER .................................................1-10
STUDIO-TRANSMITTER LINK.............................................................................................1-12
Transmission from Studio to Transmitter.............................................................1-12
Digital links..................................................................................................................... 1-13
Microwave STLs .............................................................................................................. 1-14
Analog landline (PTT/post office line)........................................................................... 1-15
USING LOSSY DATA REDUCTION IN THE AUDIO CHAIN BEFORE THE 6300..............................1-15
INTERFACING TO THE TRANSMITTER ..................................................................................1-16
Sync Input ....................................................................................................................... 1-16
AES User Bits...................................................................................................................1-16
Sample Rate and Audio Bandwidth .............................................................................. 1-16
Subframe Delay .............................................................................................................. 1-17
ABOUT TRANSMISSION LEVELS AND METERING ..................................................................1-17
Meters ....................................................................................................................1-17
Figure 1-1: Absolute Peak Level, VU and PPM Reading ............................................... 1-18
Studio Line-up Levels and Headroom ..................................................................1-18
Transmission Levels................................................................................................1-19
LINE-UP FACILITIES .........................................................................................................1-19
Metering of Levels.................................................................................................1-19
Built-in Calibrated Line-up Tones.................................................................................. 1-19
Built-in Calibrated Bypass Test Mode............................................................................ 1-20
SETTING OUTPUT/MODULATION LEVELS............................................................................1-20
MONITORING ON LOUDSPEAKERS AND HEADPHONES..........................................................1-21
STREAMING AND NETCASTING APPLICATIONS.....................................................................1-21
Using OPTIMOD 6300 in Streaming Applications......................................................... 1-21
Loudness.......................................................................................................................... 1-21
Choosing your Encoder ..................................................................................................1-22
EAS TEST......................................................................................................................1-22
PC CONTROL AND SECURITY PASSCODE.............................................................................1-23
WARRANTY, USER FEEDBACK...........................................................................................1-24
User Feedback........................................................................................................1-24
LIMITED WARRANTY .............................................................................................1-24
INTERNATIONAL WARRANTY...............................................................................1-24
EXTENDED WARRANTY ........................................................................................1-25
Section 2 Installation
.........................................................................................................................................2-1
INSTALLING THE 6300.......................................................................................................2-1
Figure 2-1: AC Line Cord Wire Standard).........................................................................2-2
Figure 2-2: Wiring the 25-pin Remote Interface Connector........................................... 2-3
6300 REAR PANEL ...........................................................................................................2-5
INPUT AND OUTPUT CONNECTIONS.....................................................................................2-5
Cable.........................................................................................................................2-5
Connectors ...............................................................................................................2-6
Analog Audio Input.................................................................................................2-6
Analog Audio Output .............................................................................................2-6
AES3 Digital Input and Output...............................................................................2-7
Wordclock / AES11id Sync Input .............................................................................2-8
Grounding................................................................................................................2-8
Power Ground..........................................................................................................2-8
Circuit Ground .........................................................................................................2-9
STUDIO LEVEL CONTROLLER INSTALLATION (OPTIONAL) .........................................................2-9
If you are using Orban 8200ST Studio Level Controller........................................2-9
Figure 2-3: 8200ST Jumper Settings (*Factory Configuration) .....................................2-10
QUICK SETUP.................................................................................................................2-12
ANALOG AND DIGITAL I/O SETUP.....................................................................................2-20
AUTOMATION USING THE 6300’S INTERNAL CLOCK............................................................2-29
SECURITY AND PASSCODE PROGRAMMING.........................................................................2-31
To Create a Passcode: ............................................................................................2-32
To Edit a Passcode:.................................................................................................2-32
To Delete a Passcode: ............................................................................................2-33
To Lock the Front Panel Immediately:..................................................................2-33
To Program local lockout: .....................................................................................2-33
To Unlock the Front Panel: ...................................................................................2-34
Dial-up Networking and the Passcode.................................................................2-34
If You Have Forgotten Your Passcode..................................................................2-34
REMOTE CONTROL INTERFACE PROGRAMMING ..................................................................2-35
NETWORKING AND REMOTE CONTROL..............................................................................2-36
SYNCHRONIZING OPTIMOD TO A NETWORK TIME SERVER....................................................2-38
Table 2-1: NIST-referenced timeservers .........................................................................2-39
INSTALLING 6300 PC REMOTE CONTROL SOFTWARE ..........................................................2-42
Installing the Necessary Windows Services..........................................................2-42
Check Hardware Requirements ............................................................................2-43
Running the Orban Installer Program..................................................................2-43
Setting Up Ethernet, LAN, and VPN Connections ...............................................2-44
Conclusion..............................................................................................................2-45
APPENDIX: SETTING UP SERIAL COMMUNICATIONS .............................................................2-47
Preparing for Communication through Null Modem Cable ..............................2-47
Connecting Using Windows 2000 Direct Serial Connection:..............................2-47
Connecting Using Windows XP Direct Serial Connection ..................................2-52
Preparing for Communication through Modems ...............................................2-57
Connecting Using Windows 2000 Modem Connection ......................................2-57
Connecting using Windows XP Modem Connection ..........................................2-63
UPDATING YOUR 6300’S SOFTWARE.................................................................................2-68
Section 3 Operation
.........................................................................................................................................3-1
6300 FRONT PANEL .........................................................................................................3-1
INTRODUCTION TO PROCESSING..........................................................................................3-3
Some Audio Processing Concepts.................................................................................... 3-3
Distortion in Processing ................................................................................................... 3-3
Loudness and Distortion .................................................................................................. 3-3
Processing for Low Bit Rate Codecs................................................................................. 3-4
Speech/Music Detector..................................................................................................... 3-5
Optimod 6300 in Radio-Oriented Applications: From Bach to Rock ...................3-5
Sound-for-Picture Applications: Controlling Dynamic Range..............................3-6
ABOUT THE 6300’S SIGNAL PROCESSING FEATURES ..............................................................3-6
Signal Flow...............................................................................................................3-6
2-band Purist Processing .........................................................................................3-9
Input/output Delay................................................................................................3-10
CUSTOMIZING THE 6300’S SOUND ...................................................................................3-10
Basic Modify...........................................................................................................3-10
Full Modify .............................................................................................................3-11
Advanced Modify ..................................................................................................3-12
Gain Reduction Metering .....................................................................................3-12
To Create or Save a User Preset ............................................................................3-13
ABOUT THE PROCESSING STRUCTURES ...............................................................................3-14
FACTORY PROGRAMMING PRESETS ...................................................................................3-16
Protection and AGC Presets..................................................................................3-17
Table 3-1: Protection and AGC Presets.......................................................................... 3-18
Radio-Style Presets ................................................................................................3-19
Table 3-2: Radio-Style Presets ........................................................................................ 3-20
Sound-for-Picture Presets......................................................................................3-25
Table 3-3: Factory Programming Presets (Sound-for-picture)...................................... 3-25
EQUALIZER CONTROLS ....................................................................................................3-26
Table 3-4: 5-band Equalization Controls....................................................................... 3-27
STEREO ENHANCER CONTROLS .........................................................................................3-31
Table 3-5: Stereo Enhancer Controls ............................................................................. 3-32
AGC CONTROLS ............................................................................................................3-32
Table 3-6: AGC Controls................................................................................................. 3-33
Advanced AGC Controls........................................................................................3-36
DISTORTION CONTROL ....................................................................................................3-38
Figure 3-1: Bass Clipper Input/Output Transfer Curves as Bass Clip Shape Control is
Varied from 0.0 (Hard) to 10.0 (Soft) ............................................................................ 3-38
Table 3-7: Distortion Control Adjustments ................................................................... 3-39
THE 2-BAND STRUCTURE .................................................................................................3-40
Customizing the Settings ......................................................................................3-40
Table 3-8: 2-band Controls............................................................................................. 3-41
The 2-band Structure’s Full and Advanced Setup Controls................................3-41
Advanced 2-band Controls ...................................................................................3-45
Figure 3-2: Output level in dB (y) for a given input level in dB (x) at various settings of
NEE and RATIO control ............................................................................................ 3-46
the K
THE 5-BAND STRUCTURE .................................................................................................3-47
Table 3-9: Multiband Controls .......................................................................................3-48
Putting the 5-band Structure on the Air .............................................................3-48
Customizing the Settings ......................................................................................3-48
The 5-band Structure’s Full and Advanced Setup Controls ................................3-49
Table 3-10: MB Band Mix Controls................................................................................. 3-49
Table 3-11: MB Attack / Release Controls...................................................................... 3-51
Advanced 5-band Controls ...................................................................................3-55
TEST MODES .................................................................................................................3-56
Table 3-12: Test Modes................................................................................................... 3-57
USING THE 6300 PC REMOTE CONTROL SOFTWARE ...........................................................3-57
To set up a new connection: .................................................................................3-58
To initiate communication: ...................................................................................3-58
To modify a control setting:..................................................................................3-59
To recall a preset:...................................................................................................3-59
To save a user preset you have created: ..............................................................3-60
To back up User Presets, system files, and automation files onto your computer’s
hard drive:..............................................................................................................3-60
To restore archived presets, system files, and automation files:........................3-61
To modify INPUT/OUTPUT and SYSTEM SETUP:............................................................3-62
To modify AUTOMATION: .........................................................................................3-62
To group multiple 6300s: ......................................................................................3-62
Navigation Using the Keyboard ...........................................................................3-63
To Quit the Program..............................................................................................3-63
About Aliases created by Optimod 6300 PC Remote Software .........................3-63
Multiple Installations of Optimod 6300 PC Remote ...........................................3-63
USING THE 6300 FOR PRODUCTION AND MASTERING .........................................................3-65
Section 4 Maintenance
.........................................................................................................................................4-1
ROUTINE MAINTENANCE ...................................................................................................4-1
SUBASSEMBLY REMOVAL AND REPLACEMENT.......................................................................4-2
FIELD AUDIT OF PERFORMANCE..........................................................................................4-6
Table 4-1: Typical Power Supply Voltages and AC Ripple ..............................................4-8
Section 5 Troubleshooting
.........................................................................................................................................5-1
PROBLEMS AND POTENTIAL SOLUTIONS...............................................................................5-1
RFI, Hum, Clicks, or Buzzes ............................................................................................... 5-1
Poor Peak Modulation Control ........................................................................................5-1
Audible Distortion ............................................................................................................5-1
Audible Noise....................................................................................................................5-2
Gain pumping when high frequency energy is present ................................................. 5-3
Shrill, Harsh Sound............................................................................................................ 5-3
Dull Sound......................................................................................................................... 5-3
Excessive Sibilance (“ess” sounds)....................................................................................5-4
Commercials Too Loud in Sound for Picture Applications .............................................5-4
System Will Not Pass Line-Up Tones at 100% Modulation............................................. 5-4
System Will Not Pass Emergency Alert System (“EAS” USA Standard) Tones at the
Legally Required Modulation Level ................................................................................ 5-4
System Receiving 6300’s Digital Output Will Not Lock .................................................. 5-4
AES Channel Status Bits Will Not Set the 6300 to Stereo or Dual-Mono Mode............ 5-5
Equipment Receiving the 6300’s AES Output Changes Operation Mode Unexpectedly 55
General Dissatisfaction with Subjective Sound Quality.................................................. 5-5
Security Passcode Lost (When Unit is Locked Out) ......................................................... 5-5
Connection Issues between the 6300 and a PC, Modem, or Network ................5-5
Troubleshooting Connections.................................................................................5-6
You Cannot Access the Internet After Making a Direct or Modem Connection to
the 6300: ..................................................................................................................5-6
OS-SPECIFIC TROUBLESHOOTING ADVICE ............................................................................5-7
Troubleshooting Windows 2000 Direct Connect:..................................................5-7
Troubleshooting Windows 2000 Modem Connect:...............................................5-8
Troubleshooting Windows XP Direct Connect: .....................................................5-9
Troubleshooting Windows XP Modem Connect: ................................................5-10
TROUBLESHOOTING IC OPAMPS .......................................................................................5-11
TECHNICAL SUPPORT.......................................................................................................5-12
FACTORY SERVICE...........................................................................................................5-12
SHIPPING INSTRUCTIONS ..................................................................................................5-12
Section 6 Technical Data
.........................................................................................................................................6-1
SPECIFICATIONS................................................................................................................6-1
Performance.............................................................................................................6-1
Installation ...............................................................................................................6-2
CIRCUIT DESCRIPTION .......................................................................................................6-4
Overview ..................................................................................................................6-5
Control Circuits ........................................................................................................6-5
User Control Interface and LCD Display Circuits ...................................................6-6
Input Circuits............................................................................................................6-7
Output Circuits.........................................................................................................6-9
DSP Circuit..............................................................................................................6-10
Power Supply .........................................................................................................6-10
ABBREVIATIONS .............................................................................................................6-11
PARTS LIST ....................................................................................................................6-13
Obtaining Spare Parts ...........................................................................................6-13
Control Board ........................................................................................................6-13
Combined Input/Output and DSP (I/O+DSP) Board ............................................6-15
Display Board (Front) ............................................................................................6-18
Display Board (Back)..............................................................................................6-19
SCHEMATICS AND PARTS LOCATOR DRAWINGS...................................................................6-19
Function Description Drawing Page
Chassis
Control board
I/O+DSP Board
Display Board
DSP Block
Diagram
Circuit Board Locator and Basic Interconnections
Control microprocessor. Services
front panel, serial port, Ethernet,
Top view
(not to scale)
Parts Locator
Drawing
6-21
6-22
and DSP+I/O board.
Contains:
General Purpose bus, address de-
Schematic 1 of 5
6-23
coder, DSP, and I/O interface
Memory and clock generation Schematic 2 of 5
Ethernet Schematic 3 of 5
Miscellaneous input/output Schematic 4 of 5
Power and Ground Schematic 5 of 5
Analog Input/output
AES3 Input/output
Parts Locator
Drawing
6-24
6-25
6-26
6-27
6-28
DSP Chips; Local regulators.
Contains:
L and R Analog Inputs Schematic 1 of 9 6-29
L and R Analog Outputs Schematic 2 of 9 6-30
Digital Input and Sync Input Schematic 3 of 9 6-31
Digital Outputs Schematic 4 of 9 6-32
DSP Extended Serial Audio Inter-
Schematic 5 of 9 6-33
face (ESAI) and Host Interface
DSP Serial Peripheral Interface,
Schematic 6 of 9 6-34
Power, and Ground
General Purpose bus 8-bit I/O Schematic 7 of 9 6-35
Serial Audio Interface and Clock
Schematic 8 of 9 6-36
Generation
Power Distribution Schematic 9 of 9 6-37
Front-Panel LCD, LEDs, Buttons,
and Rotary Encoder
Parts Locator
Drawing
6-38
Contains:
Front of board Schematic 1 of 2 6-39
Rear of board 6-40
Shows signal processing 6-41
Index
8
8200ST 2- · 9
A
A/D converter
circuit description 5- · 8
specification 6- · 2
Abbreviations 6- · 11
AC Line Cord Standard 2- · 2
Advanced Modify 3- · 12
AES channel status bits 5- · 5
AES/EBU I/O 2- · 7
AES11 sync 2- · 25
AES3 status bits 2- · 18
AGC
bass attack control 3- · 37
bass coupling control 3- · 35
bass release control 3- · 37
bass threshold control 3- · 36
control list 3- · 32
crossover control 3- · 37
defeating 3- · 33
defeating 3- · 21
drive control 3- · 33
external AGC setup 2- · 9
gate threshold control 3- · 34
idle gain control 3- · 36
master attack control 3- · 37
master release control 3- · 34
meter 3- · 2
ratio control 3- · 36
using 6300 as 3- · 17
window release control 3- · 36
window size control 3- · 36
AGC 3- · 7
AGC Matrix 3- · 37
allpass crossover 3- · 37
analog I/O 1- · 7
analog input
circuit description 6- · 7
ref level, I/O setup 2- · 21
analog input 2- · 6
analog landline 1- · 15
analog output
circuit description 6- · 9
analog output 2- · 6
archiving presets 3- · 60
artifacts
minimizing codec 3- · 4
Attack
Multiband 3- · 55
attack 3- · 37
audio
bandwidth 1- · 16
connections 2- · 5
input, connecting 2- · 6
output 2- · 7
output, connecting 2- · 6
Audio Precision 4- · 6
auditing performance 4- · 6
automation
add event 2- · 30
delete event 2- · 31
edit event 2- · 31
automation 2- · 29
automation 3- · 62
B
B5 down expand 3- · 53
backing up presets 3- · 60
balance adjust 2- · 22
balanced
inputs 2- · 6
output, simulates transformer 2- · 6
band coupling 3- · 53
bandwidth 2- · 13, 20
base board
removing 4- · 2
replacing 4- · 4
Basic Modify 3- · 10
BASS CLIP control 3- · 38
bass threshold 3- · 36
battery
replacing 6- · 6
bit depth of internal processing 6- · 1
block diagram 6- · 41
breakpoint 3- · 46
Brilliance control 3- · 30
buttons
escape 3- · 2
modify 3- · 1
NEXT 3- · 1
PREVIOUS 3- · 1
RECALL 3- · 1
setup 3- · 1
buzz 5- · 1
bypass
local 1- · 22
PC remote 1- · 23
remote interface 1- · 23
test mode 1- · 20
C
cable
shielding 2- · 8
type recommended for analog I/O 2- · 5
chassis
getting inside 4 · 2
ground 2- · 8
circuit board locator drawing 6- · 21
circuit description
control 6- · 5
LCD display 6- · 6
user control interface 6- · 6
circuit description 6- · 4
Classical music 3- · 21
cleaning front panel 4- · 1
clipper
control list 3- · 38
clipper, bass 3- · 8
clipping 3- · 3
clock
battery 6- · 6
setting 2- · 29
codec
overshoots in 3- · 70
processing for low bit rate 3- · 4
commercial loudness 5- · 4
common-mode rejection 2- · 8
components
obtaining 6- · 13
compression 3- · 3
compression ratio 3- · 45
compressor gate 3- · 34
computer
connecting to 2- · 4
interface, specifications 6- · 3
troubleshooting connections 5- · 6
Windows 2000 5- · 7
Windows XP 5- · 9
computer interface
RS-232 2- · 5
serial 2- · 5
computer interface 1- · 8
connecting
through Win XP direct serial 2- · 52
connection to PC
troubleshooting 5- · 5
connectors
audio 2- · 5
input and output 2- · 6
contrast control 3- · 1
control knob 3- · 1
controls
BASS CLIP 3- · 38
breakpoint 3- · 46
compression ratio 3- · 45
contrast 3- · 1
description 3- · 1
Final Limit 3- · 39
knee 3- · 46
LO PASS 3- · 31
MAX LPF 2- · 13, 20
soft buttons 3- · 1
SYNC DELAY 2- · 20
corrosion 4- · 1
coupling controls 3- · 53
crossover
allpass 3- · 37
linear phase 3- · 38
modes 3- · 37
crossover Ethernet cable 5- · 6
D
D/A converter
circuit description 6- · 9
specification 6- · 2
delay
setting processing 2- · 20
delay 3- · 10
Delay 6- · 2
delta release control 3- · 55
DHCP server 5- · 6
digital I/O 1- · 6
digital input
circuit description 6- · 8
digital links 1- · 13
digital output
circuit description 6- · 10
display assembly
removing 4 · 2
display board
parts list 6- · 18, 19
Display mode 2- · 20
distortion
excessive 5- · 5
testing 4- · 9
troubleshooting 5- · 1
vs. loudness 3- · 3
dither 2- · 26
DJ Bass control 3- · 30
downward expander 3- · 52
DSP
block diagram 6- · 41
circuit description 6- · 10
DSP board
replacing 4- · 4
dual-mono 2- · 18, 35
dual-mono 6- · 2
dull sound
troubleshooting 5- · 3
E
EAS
modulation low 5- · 4
test tones 1- · 22
easy setup 2- · 12
equalizer
bass shelf 3- · 27
control list 3- · 26, 65
parametric 3- · 28
equalizer 3- · 8
escape button 3- · 2
Ethernet 2- · 36, 44, 58
external AGC mode 2- · 13
external sync
setting source 2- · 25
F
factory presets
radio 3- · 19
selecting 2- · 18
tv 3- · 25
factory presets 1- · 5
factory service 5- · 12
Final Limit control 3- · 39
Firewall 2- · 44, 58
Firmware
updating 8500 2- · 68
five-band
attack time controls 3- · 55
band coupling controls 3- · 53
delta release control 3- · 55
downward expander thresold control 3- · 52
full modify control list 3- · 49
limiter attack control 3- · 55
multiband drive control 3- · 49
multiband gate threshold control 3- · 52
mutiband release control 3- · 50
output mix controls 3- · 54
five-band 3- · 47
frequency response
specification 6- · 1
testing 4- · 9
front panel 3- · 1
Full Modify 3- · 11
fuse 6- · 10
G
gain reduction
meters 3- · 2
gate
threshold control 3- · 52
gate 3- · 34
gate LED 3- · 2
Gateway 2- · 44, 58
gateway address 2- · 37
getting inside the unit 4 · 2
GPI
specifications 6- · 3
GPI interface
testing 4- · 11
ground
chassis 2- · 9
grounding
circuit 2- · 9
loss of 4- · 1
power 2- · 8
grounding 2- · 8
grouping 6300s 3- · 62
H
Hard Clip Shape 3- · 39
headphones
low-delay monitoring 2- · 14, 24, 26
headphones 1- · 21
headroom
in codecs 1- · 13, 20
relationship to EQ 1- · 20
HF enhancer 3- · 8
High Frequency Enhancer 3- · 31
high frequency limiter 3- · 54
high-pass filter
30 Hz 3- · 7
Highpass Filter 3- · 31
hum 5- · 1
I
I/O
AES/EBU 2- · 7
connections 2- · 2
I/O board
replacing 4- · 4
IC opamps
troubleshooting 5- · 11
idle gain 3- · 36
input
analog, connecting 2- · 6
analog, specifications 6- · 2
digital, specifications 6- · 2
input level
line-up 1- · 18
input meters 1- · 19
input meters 3- · 2
input selector
I/O setup 2- · 21
input/output board
removing 4- · 3
inspection of package contents 2- · 1
installation procedure 2- · 1
Instrumental format 3- · 22
Internet
cannot access 5- · 6
IP address 2- · 36
IP port 2- · 37
J
J.17
and 6300 digital I/O 1- · 7
deemphasis applied to digital audio input 6-
· 3
defined 1- · 7
preemphasis applied to digital audio output
6- · 3
Jazz format 3- · 23
K
knee control 3- · 46
L
line-up tones
system will not pass at 100% modulation 5- ·
4
line-up tones 1- · 19
Lo Pass control 3- · 31
location 1- · 9
lock
driven equipment cannot lock to 6300 output
5- · 4
lockout
immediate 2- · 33
programming local 2- · 33
unlocking front panel 2- · 34
look-ahead limiter
XE "presets:AGC 3-" XE "presets:protection
3-" using 6300 as 3- · 17
look-ahead limiter 3- · 9
look-ahead limiting 3- · 3
lossy data reduction
in studio 1- · 15
loudness
insufficient 5- · 5
insufficient due to poor peak control 5- · 1
vs. distortion 3- · 3
Loudness
increase expected 1- · 21
Loudness Controller
and 5-Band · 48
threshold control 3- · 43
Loudness Controller 1- · 4
Loudness Controller 3- · 8, 16
loudness controller 5- · 4
Loudness Controller 5- · 48
latency 3- · 10
LEDs
gate 3- · 2
Less-More
index 3- · 45
Less-More 3- · 33
level
metering 1- · 19
setup 2- · 14
transmission 1- · 19
limiter
attack 3- · 55
limiting
look-ahead 3- · 3, 9
limiting 3- · 3
line voltage 2- · 2
linear-phase crossover 3- · 38
M
main board
reattaching 4 · 4
mastering
setting output level 3- · 70
mastering applications 3- · 65
mastering presets 3- · 66
Matrix
AGC 3- · 37
Max Delta GR
AGC 3- · 37
measuring performance 4- · 6
meter
circuit description 6- · 6
gain reduction 3- · 12
meters
AGC 3- · 2
circuit description 6- · 6
gain reduction 3- · 2
input 3- · 2
studio 1- · 17
Mod Reduction control 2- · 35
Mode>Out 2- · 19
modem
preparing for connection 2- · 57
recommended baud rate 2- · 58
setting up 2- · 37
specification for 2- · 43
Windows 2000 configuration 2- · 57
Windows XP configuration 2- · 63
modify button 3- · 1
modulation
switching 1- · 20
modulation control
troubleshooting poor 5- · 1
monitoring 1- · 21
MP3 1- · 22
multiband drive 3- · 49
multimeters 2- · 2
music/speech detector 3- · 5
N
NAB Broadcast and Audio System Test CD
4- · 6
netcasting applications
encoder 1- · 22
netcasting applications 1- · 21
network
timeserver 2- · 38
networking 2- · 36
News format 3- · 23
NEXT button 3- · 1
NICAM 1- · 14
noise
specification 6- · 1
troubleshooting 5- · 2
null modem cable
communicating through 2- · 47
null modem cable 2- · 43
O
OPTIMOD-6300 1- · 1
output
analog output level trim adjustment 4- · 8
analog, connecting 2- · 6
analog, specifications 6- · 2
digital, setting dither 2- · 26
digital, setting sample rate 2- · 26
digital, setting sync 2- · 26
digital, setting word length · 26
digital, specifications 6- · 3
headphone monitoring, setup 2- · 14, 24, 26
output level
I/O setup 2- · 24, 25
quick setup 2- · 17
output mix controls 3- · 54
overshoot
excessive 5- · 1
P
parametric equalizer 3- · 8
parent preset 3- · 45
parts
obtaining 6- · 13
parts list
base board 6- · 13
display board 6- · 18, 19
I/O board 6- · 15
parts list 6- · 13
passcode
and dial-up networking 2- · 34
creating 2- · 32
deleting 2- · 33
editing 2- · 32
programming 2- · 31
recovering from lost 2- · 34
PC
Orban installer program 2- · 43
PC board locator diagram 6- · 21
PC control
security 1- · 23
PC hardware requirements 2- · 43
PC Remote
aliases 3- · 63
moving alias folders 3- · 64
multiple coexisting versions 3- · 63
upgrading versions 3- · 63
PC Remote Software 3- · 57
performance
measuring 4- · 6
phase rotator 3- · 7
Phase Rotator 3- · 31
phase-linear
two-band purist processing 3- · 9
port, IP 2- · 37
Ports 2- · 44, 58
power
cord 2- · 2, 5
power supply
circuit description 6- · 10
Orban part # 6- · 11
testing 4- · 8
power supply board
reattaching 4 · 4
Precode 3- · 4
pre-emphasis
quick setup 2- · 23
preset
restoring archived 3- · 61
presets
AGC 3- · 17
backup 3- · 60
country 3- · 21
customizing 3- · 10
dance 3- · 22
factory 1- · 5
factory programming 3- · 16
five-band 3- · 14
folk 3- · 22
gold 3- · 22
oldies 3- · 22
protection 3- · 17
radio 3- · 19
saving user 3- · 6, 13
smooth jazz 3- · 24
techno 3- · 22
two-band 3- · 15
user presets 1- · 6
video 3- · 25
Presets
Gregg 3- · 22
Impact 3- · 22
Instrumental 3- · 22
Jazz 3- · 23
Loud 3- · 23
News-Talk 3- · 23
Rock 3- · 24
Sports 3- · 23
Urban 3- · 25
PREVIOUS button 3- · 1
processing
AGC 3- · 7
block diagram 6- · 41
distortion in 3- · 3
equalization 3- · 8
introduction to 3- · 3
multiband compression 3- · 8
music/speech 3- · 5
radio-style 3 · 5
signal flow 3- · 6
Stereo enhancement 3- · 7
structures 1- · 3
structures 3- · 14
two-band purist 30 · 9
video oriented 3- · 6
processing structures
two-band 3- · 25
Proof of Performance 1- · 5
Proof of Performance 3- · 56
Q
quick setup 2- · 12
R
rack-mounting unit 2- · 2
ratio
AGC 3- · 36
compression 3- · 45
control 3- · 8
rear panel 2- · 5
RECALL button 3- · 1
registration card 2- · 1
remote
PC Remote software 3- · 57
remote control
bypass 1- · 23
connecting 2- · 3
GPI, specifications 6- · 3
wiring 2- · 3
remote control 2- · 5
remote interface
functions controllable by 2- · 35
GPI 1- · 8
programming GPI 2- · 35
testing 4- · 11
wiring 2- · 3
remote interface connector 2- · 5
resolution
specification 6- · 1
RFI 5- · 1
right channel balance
I/O setup 2- · 22
RJ45 jack 2- · 37
Rock format 3- · 24
routine maintenance 4- · 1
RS232
testing 4- · 11
RS-232 connector 2- · 5
RS-232 interface
circuit description 6- · 6
Rumble Filter 3- · 31
S
sample rate
at digital output 6- · 3
internal, specification 6- · 1
setting output 2- · 16
sample rate 1- · 16
sample rate converter
testing 4- · 10
saving user presets 3- · 6, 13
screen display 3- · 1
screens
System Setup 2- · 12
Security
lock immediately 2- · 33
security 1- · 23
security 2- · 31
Serial Communications
setting up 2- · 47
serial connection
setting up direct 2- · 38
serial connector 2- · 5
service 5- · 12
setup
I/O 2- · 20
quick 2- · 12
setup button 3- · 1
shelving equalizer
bass, slope of 3- · 8
shipping instructions 5- · 12
Show date 2- · 20
shrill sound
troubleshooting 5- · 3
Sibilance 5- · 4
signal flow diagram 6- · 41
smooth jazz 3- · 24
soft buttons 3- · 1
Software
updating 8500 2- · 68
software updates 1- · 5
Sound Technology 4- · 6
sound-for-picture
processing 3- · 6
spare parts
obtaining 6- · 13
specifications 6- · 1
speech/music detector 3- · 5
Sports format 3- · 23
station ID
setting 2- · 18
Status bits, AES3 2- · 18
stereo
control by status bits 2- · 18
stereo enhancement 3- · 7
Stereo enhancer
Controls 3- · 31
Stereo Enhancer
Amount 3- · 32
Depth 3- · 32
Diffusion 3- · 32
In/Out 3- · 32
Ratio Limit 3- · 32
Style 3- · 32
STL
compatibility with 32 kHz sample rate 2- · 7
overshoot in uncomressed digital 2- · 7
systems 1- · 12
STL systems 1- · 10, 12, 14
streaming media 1- · 21
studio AGC
preset 3- · 17
studio-transmitter link 1- · 12
subassembly removal and replacement 4- ·
2
subframe delay 1- · 17
subnet mask 2- · 37
sync
setting source 2- · 25
sync delay 2- · 20
Sync input 1- · 16
system setup
quick setup 2- · 12
System Setup screen 2- · 12
T
Talk format 3- · 23
TCP/IP
setting parameters 2- · 36
technical support 5- · 12
telephone support 5- · 12
test modes 3- · 56
test tone
frequencies 2- · 26
Threshold
Bass Delta 3- · 37
Master Delta 3- · 37
Multiband Compression 3- · 50
time
daylight saving 2- · 13
summer 2- · 13
time & date 2- · 12
timeserver 2- · 38
top cover
reattaching 4 · 5
removing 4 · 2
Transmitter
interfacing to 1- · 16
troubleshooting
installation 5- · 1
tv presets 3- · 25
two-band
bass attack control 3- · 45
bass coupling control 3- · 43
bass threshold control 3- · 45
crossover control 3- · 47
drive control 3- · 41
full modify controls 3- · 41
gate control 3- · 43
master attack control 3- · 45
master compression threshold 3- · 45
release control 3- · 42
two-band processing structure 3- · 25
two-band structure 3- · 40
U
unlock front panel 2- · 34
unpacking 2- · 1
Updating software 2- · 68
Urban format 3- · 25
user presets
archiving 3- · 14
creating 3- · 6, 11, 13
user presets 1- · 6
V
VPN, setting up 2- · 44, 58
W
warranty 1- · 24
Warranty 1- · 24
warranty 6- · 4
window
release control 3- · 36
window size control 3- · 36
Windows
installing services 2- · 42
Windows 2000
adding direct serial connection 2- · 48, 52,
58, 64
Direct Connect 5- · 7
direct serial connection 2- · 47
modem connect 5- · 8
modem connection 2- · 57
Windows XP
direct connect 5- · 9
modem configuration 2- · 63
modem connect 5- · 10
women
processing for 3- · 4
word length
at output, specification 6- · 3
setting output 2- · 26
wordclock 2- · 8, 25
X
XLR connector
wiring standard 2- · 7
OPTIMOD 6300 DIGITAL INTRODUCTION
Section 1
Introduction
About this Manual
The Adobe pdf form of this manual contains numerous hyperlinks and bookmarks. A
reference to a numbered step or a page number (except in the Index) is a live hyperlink; click on it to go immediately to that reference.
If the bookmarks are not visible, click the “Bookmarks” tab on the left
side of the Acrobat Reader window.
1-1
This manual has a table of contents and index. To search for a specific word or
phrase, you can also use the Adobe Acrobat Reader’s text search function.
The OPTIMOD 6300 Digital Audio Processor
Orban’s all-digital Optimod 6300 Audio Processor can help you achieve the highest
possible quality digital audio broadcast, digital television, and netcast audio processing. Thanks to versatile signal routing, the 6300 can also serve as a studio AGC with
an all-digital signal path, and simultaneously as a talent headphone processor.
Because all processing is performed by high-speed mathematical calculations within
Motorola DSP56367 Digital Signal Processing chips, the processing has cleanliness,
quality, and stability over time and temperature that is unmatched by analog processors.
OPTIMOD 6300 is descended from the industry-standard OPTIMOD audio processors
for radio and television. Thousands of these broadcast-specific processors are attracting and holding audiences all over the world. They have proven that the
“OPTIMOD sound” can attract and keep an audience even in the most competitive
commercial environment.
Because OPTIMOD 6300 incorporates several audio processing innovations
exclusive to Orban products, you should not assume that it can be operated
in the same way as less sophisticated processors. If you do, you may get
disappointing results.
Take a little time now to familiarize yourself with OPTIMOD 6300. A small investment of your time now will yield large dividends in audio quality.
1-2
INTRODUCTION ORBAN MODEL 6300
The rest of Chapter 1 explains how OPTIMOD 6300 fits into the DAB and DTV broadcast plants and how to use it for netcasting. Chapter 2 explains how to install it.
Chapter 3 explains how to operate OPTIMOD 6300. Chapters 4 through 6 provide
reference information.
OPTIMOD 6300 was designed to deliver a high quality sound while simultaneously
increasing the average modulation of the channel substantially beyond that achievable by “recording studio”-style compressors and limiters. Because such processing
can exaggerate flaws in the source material, it is very important that the source
audio be as clean as possible.
For best results, feed OPTIMOD 6300 unprocessed audio. No other audio processing is necessary or desirable.
If you wish to place level protection prior to your studio/transmitter link (STL), use
OPTIMOD-PC 1100V2 or another 6300. Either of these can substitute for the broadband AGC circuitry in OPTIMOD 6300, which is then defeated.
User-Friendly Interface
An LCD and full-time LED meters make setup, adjustment and programming
of OPTIMOD 6300 easy—you can always see the metering while you are adjusting the processor. Navigation is by dedicated buttons, soft buttons (whose function is context-sensitive), and a large rotary knob. The LEDs show all metering
functions of the processing structure (2-band or 5-band) in use.
Push one of the dedicated buttons to “Recall” a preset, to “Modify” processing,
or to access the system’s Setup controls.
Absolute Control of Peak Modulation
The 6300 precisely controls peak levels to prevent overmodulation. The
maximum level of the digital samples is controlled to better than 2%.
While primarily oriented toward “flat” media, the 6300 can also provide
preemphasis limiting for the two standard preemphasis curves of 50s and
75s. This allows it to protect pre-emphasized microwave links, satellite uplinks
and similar channels where protection limiting or light processing is required.
Because its processing is configured to be most effective with “flat media,” the 6300 cannot provide extreme loudness for pre-emphasized radio channels. Use one of Orban’s Optimod-FM processors for this application. For analog television with FM aural carrier(s), use Optimod-TV 8382.
Flexible Configuration
The 6300 includes analog and dual AES3 digital inputs and outputs. The digi-
tal input and digital outputs have sample-rate converters and can operate at 32
OPTIMOD 6300 DIGITAL INTRODUCTION
kHz, 44.1 kHz, 48, 88.2, and 96 kHz sample rates. The preemphasis status and
output levels are separately adjustable for the analog and digital outputs.
Note that the 6300 cannot provide simultaneous, independent audio
processing for flat and preemphasized channels. Even though one output
may be pre-emphasized while other is flat, the only difference between
the outputs is that the “flat” output has de-emphasis applied to it after
the processing while the preemphasized output does not.
OPTIMOD 6300’s outputs can be independently configured to emit the output of
the AGC or the output of the multiband compressor/limiter, all configurable
to use or bypass look-ahead limiting. So a 6300 can be configured to drive an
STL with a peak-limited output from the AGC while also providing a fully
processed digital radio/netcast feed and a low delay, multiband compressed talent headphone feed.
OPTIMOD 6300 controls the audio bandwidth as necessary to accommodate
the transmitted sample frequency. OPTIMOD 6300’s high frequency bandwidth
can be switched instantly (typically in 1 kHz increments) between 10 kHz and 20
kHz. 20 kHz is used for highest-quality systems. 15 kHz meets the requirements
of any system that uses 32 kHz sample frequency, while 10 kHz is appropriate for
24 kHz sample frequency.
1-3
The 6300’s dual-mono mode allows entirely separate mono programs to be
processed, facilitating dual-language operation.
In this mode, both processing channels operate using the same processing parameters (like release time); you cannot adjust the two channels to
provide different processing textures.
The analog inputs are transformerless, balanced 10k instrumentation-
amplifier circuits and the analog outputs are transformerless, balanced, and
floating (with 50 impedance) to ensure highest transparency and accurate
pulse response.
All input, output, and power connections are rigorously RFI-suppressed to
Orban’s traditional exacting standards, ensuring trouble-free installation.
The 6300 is designed and certified to meet all applicable international
safety and emissions standards.
Adaptability through Multiple Audio Processing Structures
A processing structure is a program that operates as a complete audio proc-
essing system. Only one processing structure can be active at a time. OPTIMOD
6300 realizes its processing structures as a series of high-speed mathematical
computations made by Digital Signal Processing (DSP) chips.
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INTRODUCTION ORBAN MODEL 6300
The 6300 features two processing structures: 5-band for a spectrally consistent
sound with good loudness control, and 2-band for a transparent sound that
preserves the frequency balance of the original program material while also effectively controlling subjective loudness.
Orban’s PreCode™ technology manipulates several aspects of the audio to
minimize artifacts caused by low bitrate codecs, ensuring consistent loudness
and texture from one source to the next. PreCode includes special audio band
detection algorithms that are energy and spectrum aware. This can improve codec performance on some codecs by reducing audio processing induced codec
artifacts, even with program material that has been preprocessed or mastered
by other processing than Optimod. There are several factory presets tuned specifically for low bitrate codecs. These presets have “LBR” in their names.
A special 2-band preset creates a no-compromise “Protect” function that is func-
tionally similar to the “Protect” structures in earlier Orban digital processors.
The 5-band and the 2-band structures can be switched via a mute-free crossfade.
OPTIMOD 6300’s 2-band structure includes a CBS Loudness Controller™ for
DTV applications. This system measures subjective loudness (as perceived by an
average listener) and then closes a feedback loop to limit loudness to a preset
level. It effectively controls loud commercials, which are the primary irritant in
sound-for-picture applications.
The CBS Loudness Controller is not needed with the 5-band processing
because the 5-band processing’s spectral consistency creates consistent
loudness as a desirable byproduct.
The 6300’s AGC rides gain over an adjustable range of up to 25dB, compressing
dynamic range and compensating for both operator gain-riding errors and gain
inconsistencies in automated systems. The AGC output is available to drive STLs,
so the 6300 can be used as a studio AGC.
The 6300’s processing structures are all phase-linear to maximize audible trans-
parency.
The 6300’s equalizers and crossovers use 48-bit arithmetic to ensure mastering-
quality noise and distortion performance.
Controllable
The 6300 can be remote-controlled by 5-12V pulses applied to eight pro-
grammable, optically isolated “general-purpose interface” (GPI) ports.
6300 PC Remote software is a graphical application that runs under Windows
2000 and XP. It communicates with a given 6300 via TCP/IP over modem, direct
serial, and Ethernet connections. You can configure PC Remote to switch between many 6300s via a convenient organizer that supports giving any 6300 an
OPTIMOD 6300 DIGITAL INTRODUCTION
alias and supports grouping multiple 6300s into folders. Clicking a 6300’s icon
causes PC Remote to connect to that 6300 through an Ethernet network or initiates a Windows Dial-Up or Direct Cable Connection if appropriate. The PC Remote software allows the user to access all 6300 features (including advanced
controls not available from the 6300’s front panel) and allows the user to archive
and restore presets, automation lists, and system setups (containing I/O levels,
digital word lengths, GPI functional assignments, etc.).
The 6300 contains a versatile real-time clock, which allows automation of vari-
ous events (including recalling presets) at pre-programmed times. To ensure accuracy, the clock can be synchronized to an Internet timeserver.
Silence alarm and digital audio fault tally outputs are available.
A Bypass Test Mode can be invoked locally, by remote control (from either the
6300’s GPI port or the 6300 PC Remote application), or by automation to permit
broadcast system test and alignment or “proof of performance” tests.
The 6300 contains a built-in line-up tone generator, facilitating quick and ac-
curate level setting in any system.
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The 6300’s software can be upgraded by running Orban-supplied download-
able upgrade software on a PC. The upgrade can occur remotely through the
6300’s Ethernet port or serial port (connected to an external modem), or locally
(by connecting a Windows® computer to the 6300’s serial port through the supplied null modem cable).
Presets in OPTIMOD 6300
There are two distinct kinds of presets in OPTIMOD 6300: factory presets and user
presets.
Factory Presets
The Factory Presets are our “factory recommended settings” for various program
formats or types. There are multiple Factory Presets for both radio-oriented and
video oriented programming. Each Factory Preset on the Preset list is really a library
of more than 20 separate presets, selected by navigating to M
LESS-MORE and using the LESS-MORE control to adjust OPTIMOD 6300 for less or
more processing. The factory presets are listed and described starting on page 3-15.
The description indicates the processing structure and the type of processing.
ODIFY PROCESSING >
Factory
erased. You can change the settings of a Factory Preset, but you must then store
those settings as a User Preset, which you are free to name as you wish. The Factory
Preset remains unchanged.
Presets are stored in OPTIMOD 6300’s non-volatile memory and cannot be
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INTRODUCTION ORBAN MODEL 6300
User Presets
User Presets permit you to change a Factory Preset to suit your requirements and
then store those changes.
You can store more than 100 User Presets, limited only by available memory in your
6300 (which will vary depending on the version of your 6300’s software). You can
give your preset a name up to 18 characters long.
User Presets cannot be created from scratch. You must always start by recalling a
Factory Preset. Make the changes, and then store your modified preset as a User
Preset. You can also recall a previously created user preset, modify it, and save it
again, either overwriting the old version or saving under a new name. In all cases,
the original Factory Preset remains for you to return to if you wish.
User Presets inherit the structure of their parent Factory Presets (5-band or 2-band).
The only way you can choose the structure of a factory preset is to edit it from a Factory preset having that structure (or to edit it from an older User Preset having the
desired structure). You cannot change the structure that an existing User Preset uses.
User Presets are stored in non-volatile memory that does not require battery
backup. To Create or Save a User Preset on page 3-13 has more about User Presets.
Input/Output Configuration
OPTIMOD 6300 simultaneously accommodates:
Digital AES3 left/right inputs and dual outputs.
Analog left/right inputs and outputs.
OPTIMOD 6300 can be operated in either stereo or dual-mono mode. In dual-mono
mode, processing parameters that determine the “sound” of the processor are the
same on both channels.
Dual-mono or stereo mode is a global system parameter. You can change modes
manually, via the 6300’s GPI inputs, via 6300 PC Remote software, or via the 6300’s
built-in time-of-day automation. Further, the 6300 can be programmed to recognize
the “stereo” and “dual-mono” flags in the AES input bitstream and to switch modes
accordingly. It will also set these flags appropriately in its output AES bitstream.
Digital AES3 Left/Right Input/Outputs
The digital input and outputs conform to the professional AES3 standard. They all
have sample rate converters to allow operation at 32, 44.1, 48, 88.2, and 96 kHz
sample frequency.
OPTIMOD 6300 DIGITAL INTRODUCTION
To ensure best control of peak modulation, operate the output at 48 kHz
or higher.
The left/right digital input is on one XLR-type female connector on the rear panel;
the left/right digital outputs are on two XLR-type male connector on the rear panel.
You select whether OPTIMOD 6300 uses the digital or analog input either locally or
by remote interface. If OPTIMOD 6300 is set to accept a digital input and the feed
fails, OPTIMOD 6300 will automatically switch back to the analog input.
In dual-mono mode, the two programs must be combined into one AES3 stream to
be accepted by the 6300. However, you can configure the 6300 so that one digital
output is dedicated to channel 1 and one output to channel 2 in dual-mono mode.
You can also configure the outputs so that one or both outputs carry both channels.
Level control of the AES3 input is accomplished via software control through System
Setup (see step 6 on page 2-23) or through PC Remote.
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Both analog and digital outputs are active continuously
The 6300’s output sample rate can be locked to the 6300’s internal crystal clock, the
sample rate present at its AES3 input, the sample rate present at its AES11 sync input, or wordclock.
The 6300 can apply J.17 deemphasis to signals applied to its digital input and J.17
preemphasis to the processed signal emitted from its digital output. J.17 is a
6 dB/octave shelving preemphasis/deemphasis standard with break points at 400 Hz
and 4 kHz. It is used mainly in older studio / transmitter links that use NICAM technology. The 6300’s provisions for J.17 make it fully compatible with systems using
this standard.
.
Analog Left/Right Input/Output
The left and right analog inputs are on XLR-type female connectors on the rear
panel. Input impedance is greater than 10k; balanced and floating. Inputs can accommodate up to +27dBu (0dBu = 0.775Vrms).
The left and right analog outputs are on XLR-type male connectors on the rear
panel. Output impedance is 50; balanced and floating. The outputs can drive 600
or higher impedances, balanced or unbalanced. The peak output level is adjustable
from –6dBu to +24dBu.
Level control of the analog inputs and outputs is accomplished via software control
through System Setup (see step 4 on page 2-21 and step 7 on page 2-23) or through
PC Remote.
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INTRODUCTION ORBAN MODEL 6300
Remote Control Interface
The Remote Control Interface is a set of eight optically isolated GPI inputs on a DB25 connector, which can be activated by 5-12V DC. They can control various functions of the 6300:
Recall any Factory Preset, User Preset, Test Mode state (Bypass or Tone), or exit
from a Test Mode to the previous processing preset.
Switch the 6300 to use either the analog input or the digital input.
Switch the 6300 between stereo and dual mono modes.
Reset the 6300’s internal clock to the nearest hour or to midnight.
You can reconfigure the functions of the GPI inputs via System Setup. For
example, if you are not switching between stereo and mono, the inputs
ordinarily dedicated to controlling the stereo/mono status can instead be
re-configured to call additional presets.
See page 2-35 for information on programming the remote control interface.
Computer Interface
On the rear panel of the 6300 are an RS-232 serial port and an Ethernet port for interfacing to IBM-compatible PCs either locally or through a TCP/IP network. These
computer interfaces support remote control and metering, and allow downloading
software upgrades.
Each 6300 package ships with 6300 PC Remote software, an application for any IBMcompatible PC running Microsoft Windows 2000 (Service Pack 3 or higher) or XP.
6300 PC Remote permits you to adjust any 6300 preset by remote control or to do
virtually anything else that you can do from the 6300’s front panel controls. The
program displays all of the 6300’s LCD meters on the computer screen to aid remote
adjustment.
RS-232 Serial Port
6300 PC Remote can communicate at up to 115 kbps via modem or direct connection
between the computer and the 6300 through their RS-232 serial ports.
RJ45 Ethernet Connector
The 6300 can be connected to any Ethernet network that supports the TCP/IP protocol.
See Networking and Remote Control on page 2-36 for more information.
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