Table of Contents
Index.........................................................................................................................0-9
Section 1 Introduction
.........................................................................................................................................1-1
CRUCIAL INFORMATION—PLEASE READ!.............................................................................1-1
USING THIS MANUAL .......................................................................................................1-2
THE OPTIMOD 8685 DIGITAL AUDIO PROCESSOR..............................................................1-2
Absolute Control of Loudness and Peak Modulation...........................................1-3
Flexible Configuration ............................................................................................1-4
Adaptability through Multiple Audio Processing Structures ...............................1-6
User-Friendly Interface............................................................................................1-7
Controllable .............................................................................................................1-7
PRESETS IN OPTIMOD 8685 ............................................................................................1-8
Factory Processing Presets.......................................................................................1-9
User Processing Presets ...........................................................................................1-9
INPUT/OUTPUT CONFIGURATION ......................................................................................1-10
Digital AES3id Inputs/Outputs ..............................................................................1-10
Analog Outputs .....................................................................................................1-11
Remote Control Interface .....................................................................................1-11
Computer Interface ...............................................................................................1-11
RS-485 Serial Ports .......................................................................................................... 1-12
RS-232 Serial Port ........................................................................................................... 1-12
RJ45 Ethernet Connector ............................................................................................... 1-12
Optional HD-SDI Input/Output.............................................................................1-12
ROUTING AUDIO TO AND FROM THE 8685 ........................................................................1-12
Using Lossy Data Reduction before the 8685’s Input................................................... 1-13
Links from the 8685’s Output to a Transmission Encoder or Transmitter ................... 1-13
Sample Frequency Synchronization .............................................................................. 1-14
Using the 8685 to Control Studio Output Levels.......................................................... 1-15
AV-Sync Delay................................................................................................................. 1-15
USING OPTIMOD 8685 AS A STUDIO LEVEL CONTROLLER .................................................1-16
ABOUT TRANSMISSION LEVELS AND METERING ..................................................................1-16
Meters ....................................................................................................................1-16
Figure 1-1: Absolute Peak Level, VU and PPM Reading ............................................... 1-16
Studio Line-up Levels and Headroom ..................................................................1-17
Transmission Levels................................................................................................1-17
LINE-UP FACILITIES .........................................................................................................1-18
Metering of Levels and Subjective Loudness ......................................................1-18
Test Modes .............................................................................................................1-20
Calibrated Bypass Test Mode......................................................................................... 1-20
Calibrated Line-up Tones............................................................................................... 1-21
SETTING OUTPUT/MODULATION LEVELS............................................................................1-21
STREAMING AND NETCASTING APPLICATIONS .....................................................................1-22
Using OPTIMOD 8685 in Streaming Applications......................................................... 1-22
Loudness ......................................................................................................................... 1-22
Choosing your Encoder.................................................................................................. 1-23
EAS TRANSMISSION .......................................................................................................1-23
PC CONTROL AND SECURITY PASSCODE ............................................................................1-23
WARRANTY, USER FEEDBACK ..........................................................................................1-24
User Feedback........................................................................................................1-24
To Next Page
Loading...
Need help?
General
