Orban 6200S Effect Processor
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Modelo:
6200S
Data:
2000
Categoria:
Grupo:
Descrição:
Digital Audio Processor
Informação
Orban’s all-digital 6200 OPTIMOD-DAB Audio Processor can
help you achieve the highest possible quality digital audio
broadcast processing. Because all processing is
performed by high-speed mathematical calculations within
Motorola DSP56009 Digital
Signal Processing chips, the processing has cleanliness,
quality, and stability over time
and temperature that is unmatched by analog processors.
OPTIMOD-DAB is descended from the industry-standard OPTIMOD
audio processors for radio and television. Thousands of
these broadcast-specific processors are on the air
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-DAB 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-DAB. A small investment of your time now will yield
large dividends in audio quality.
The rest of Chapter 1 explains how OPTIMOD-DAB fits into the
DAB and DTV broadcast plants, or can be used for webcasting.
Chapter 2 explains how to install it. Chapter 3
tells how to properly operate OPTIMOD-DAB. Chapter 4 through
Chapter 6 provides reference information.
OPTIMOD-DAB 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-DAB 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 the
Orban 8200ST OPTIMOD-Studio Compressor/Limiter/HF
Limiter/Clipper. The 8200ST can be adjusted so that it
substitutes for the broadband AGC circuitry in OPTIMOD-
DAB, which is then defeated.
Tipo de manual:
Serviço e Manual do Usuário
Páginas:
195
Tamanho:
3.50 Mbytes (3668342 Bytes)
Idioma:
english
Revisão:
ID de manual:
96104-000-04
Data:
2000 01 01
Qualidade:
Documento eletrônico, digitalização, bem legível.
Data de upload:
2017 10 25
MD5:
fb02d2ffca3a0c2627a689facd93bb85
Downloads:
1518
Informação
Index
...
I-7
Reading this
Manual ...
1-2
6200 OPTIMOD-DAB Digital Audio
Processor ... 1-2
User-Friendly
Interface ...
1-3
Flexible Configuration
...
1-3
Adaptability through Multiple Audio Processing Structures
... 1-4
Controllable
...
1-4
Presets in OPTIMOD-DAB
... 1-5
Factory Processing Presets
...
1-5
User Presets
...
1-5
Input/Output Configuration
... 1-6
Digital AES/EBU Left/Right
Input/Output ...
1-6
Analog Left/Right Input/Output
...
1-6
Studio-Transmitter
Link ...
1-7
Transmission from Studio to Transmitter
... 1-7
Location of OPTIMOD-DAB
... 1-10
At the Transmitter is
Best ...
1-10
Where Access to the Transmitter Plant is Not
Possible ... 1-10
OPTIMOD-DAB at the Transmitter: Gain Control before the
STL ... 1-11
Using Lossy Data Reduction in the Studio
... 1-11
Interfacing to the Transmitter
... 1-12
Sync Input
...
1-12
Sample Rate and Audio Bandwidth
...
1-12
Subframe Delay
...
1-13
Program-Associated Data (PAD)
...
1-13
Setting Modulation Levels
... 1-13
Monitoring on Loudspeakers and Headphones ...
1-14
EAS Test
...
1-15
Security Pascode for PC
Control ... 1-16
DTV Applications
... 1-16
Using the 6200 in the United States DTV
System ... 1-16
Audio Processing for Consistency and Loudness Control
... 1-18
A Hybrid Technique for DTV Processing
... 1-18
Advantages of Multiband Compression in DTV Audio
... 1-19
Using the 6200 in the 5.1 Channel Plant
... 1-20
Bypassing the Loudness Controller
... 1-20
The 6200 in 2-Channel DTV Applications
... 1-20
Webcasting
Applications ... 1-21
Using the 6200 in Streaming Applications
... 1-21
Using the 6200 in Non-Streaming Applications, to Prepare Audio
Files for
Download ... 1-22
Decoder Headroom
... 1-22
Loudness
... 1-22
Choosing your
Encoder ... 1-23
MP3 ... 1-23
Warranty,
Feedback ... 1-23
User Feedback
Form ... 1-23
Installing the
6200 ... 2-2
Figure 2-1: Jumper
Settings ... 2-3
Figure 2-2: AC Line Cord Wire
Standard ... 2-4
Figure 2-3: Wiring the 25-pin Remote Control
Connector ... 2-6
Figure 2-4: Wiring the RS-232 Computer Interface
Connector ... 2-7
6200 Rear
Panel ... 2-7
Audio Input and Output
Connections ... 2-8
Cable
... 2-8
Connectors ... 2-8
Analog Audio
Input ... 2-8
Analog Audio Monitor
Output ... 2-9
AES/EBU Digital Input and Output
... 2-10
Grounding
...
2-10
Power Ground
...
2-11
Circuit
Ground ...
2-11
6200 Front Panel
...
2-11
Installation of Studio Level Controller (optional)
... 2-13
If you are using Orban 8200ST-Studio Chassis
... 2-13
Figure 2-5: 8200ST Jumper Settings (*Factory
Configuration) ... 2-14
Figure 2-6: 464A Jumper
Settings ...
2-16
If you are using Orban 464A
Co-Operator ...
2-17
If you are using an Orban 4000 Transmission Limiter
... 2-19
Figure 2-7: 4000 Jumper
Locations ...
2-19
Figure 2-8: 4000 HF Limiter
Jumpers ...
2-20
Figure 2-9: 4000 Pre-Emphasis
Jumper ...
2-20
Figure 2-10: 4000 Pre-Emphasis
Jumper ...
2-21
Figure 2-11: 4000 Stereo Coupling Jumper
... 2-21
System
Setup ...
2-23
Analog I/O Setup
...
2-24
Digital I/O Setup
...
2-30
Security and Pascode Programming
... 2-35
Remote Control Interface
Programming ... 2-36
6200 Front Panel
...
3-2
Introduction to Processing
... 3-3
Some Audio Processing
Concepts ...
3-3
Distortion in Processing
...
3-3
Loudness and Distortion
...
3-4
OPTIMOD-DAB — from Bach to
rock ...
3-4
Customizing the 6200’s
Sound ... 3-5
Less-More
...
3-5
Full Control
...
3-6
Fundamental Requirements: High-Quality Source Material
and Accurate Monitoring
...
3-6
About the Processing Structures
... 3-6
Factory Programming Presets
... 3-7
Factory Programming
Presets ... 3-7
Table 3-1: Factory Programming Presets (Radio)
... 3-9
Table 3-2: Factory Programming Presets
(Television) ... 3-11
The Protection Limiter Structure
... 3-13
Setting Up the Protection
Limiter ... 3-13
Protection Limiting: Orban’s Approach
... 3-14
Equalization Controls
... 3-16
Table 3-3: Multi-Band Equalization Controls
... 3-16
The Two-Band Structure
... 3-20
Setting Up the Two-Band Structure
... 3-20
Gain Reduction Metering
... 3-21
Using the Two-Band Structure for Classical Music
... 3-21
The Two-Band Structure’s Full Setup
Controls ... 3-22
Table 3-4: Two-Band
Controls ... 3-22
The Multi-Band Structure
... 3-26
Putting the Multi-Band Structure on the Air
... 3-27
Customizing the Settings
... 3-27
The Multi-Band Structure’s Full Setup Controls
... 3-28
Table 3-5: Multi-Band Controls
... 3-28
Test Modes
... 3-35
Table 3-6: Test Modes
... 3-35
Using the 6200 for
Mastering ... 3-35
Limitations in Mastering Applications
... 3-37
Routine Maintenance
... 4-2
Getting Inside the
Chassis ... 4-2
Field Audit of Performance
... 4-8
Problems and Possible Causes
... 5-2
RFI, Hum, Clicks, Or Buzzes
...
5-2
Poor Peak Modulation Control
...
5-2
Audible Distortion
On-Air ...
5-2
Audible Noise On-Air
...
5-3
Shrill, Harsh Sound
...
5-3
System Receiving 6200’s Output Will Not Lock
... 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
General Dissatisfaction with Subjective Sound
Quality ... 5-4
Excessively Loud Commercials (DTV
applications) ... 5-4
Inconsistent Levels (DTV
applications) ...
5-5
Incorrect Lip Sync (DTV
Applications) ...
5-5
Troubleshooting IC
Opamps ... 5-5
Technical Support
...
5-6
Factory
Service ...
5-6
Shipping Instructions
...
5-7
Specifications
...
6-2
Circuit Description
...
6-6
Overview
...
6-6
12.288MHz Oscillator and System Clocking
... 6-6
1
Microprocessor and Power Monitoring Circuit
... 6-8
2
RAM, ROM and EEPROM
...
6-9
3
Data Latches, Tri-State Data Buffers and Address Decoders
... 6-9
User Control Interface and LED Display Circuits
... 6-9
1.
Remote and RS-232 Interfaces
...
6-10
2.
Switch Matrix and LED Indicators
... 6-10
3.
LED Meter
Circuits ...
6-10
Input Circuits
... 6-11
1.
Analog Input Stages
... 6-11
2.
Stereo Analog-to-Digital (A/D)
Converter ... 6-12
3.
Digital Input Receiver and Sample Rate Converter (SRC)
... 6-12
4.
Digital Sync Input
Receiver ... 6-13
Output
Circuits ... 6-14
1.
Stereo Digital-to-Analog (D/A)
Converter ... 6-14
2.
Analog Output Stages
... 6-15
3.
Digital Sample Rate Converter (SRC) and Output Transmitter
... 6-16
DSP
Circuits ... 6-17
Power Supply
... 6-18
Parts List
... 6-20
Obtaining Spare
Parts ... 6-21
Vendor Codes
... 6-29
Schematics, Assembly
Drawings ... 6-30
Abbreviations
... 6-50