Table of Contents
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OPTIMOD 6300 DIGITAL
Section 1
Introduction
Crucial Information for Video Applications—
Please Read!
To make automatic loudness control as straightforward and dependable as possible,
the 6300 operates somewhat differently from other Optimods.
Dialnorm: The 6300 works very easily with Dolby Digital® transmission systems
if you do one crucial thing: You must tell the 6300 what value of Dolby Digital
Dialnorm metadata you are transmitting to your audience. This will prevent your
transmission from being too loud or quiet compared to other correctly set up
Dolby Digital transmissions.
The 6300's Quick Setup wizard (page 2- 12) leads you through the process of set-
ting Dialnorm on the 6300. Step 12 on page 2-28 explains how the 6300 uses its
knowledge of transmitted Dialnorm to control loudness.
Your Dolby Digital transmission's loudness will automatically be correct if:
you have set the output driving your transmitter to be the "Dialnorm refer-
ence output" (see step (b) on page 2-30).
you use a "TV" factory preset (Table 3-3 on page 3-31),
you have adjusted the 6300's input reference level so that the processing op-
erates with normal amounts of gain reduction (step 5 on page 2-21 or step 7
on page 2-23), and
you have adjusted the 6300's Dialnorm to match the Dialnorm you are trans-
mitting (step 12 on page 2-28).
The 6300's D
setting in the active Setup, which can be overridden by (2) a setting in
the active Processing Preset. Except for the parameters in the analog TV
(TVAxxxx) presets (see Table 3-3 on page 3-31), all factory Processing Pre-
sets are configured to use the global Dialnorm setting specified in the I/O
C
ALIBRATE
Note that setting the value of Dialnorm in the 6300 does not automati-
cally convey this information to the downstream Dolby Digital encoder.
Instead, you must manually set the 6300's D
value can be set in two places: There is (1) a global
IALNORM
screen.
IALNORM
control to match the
1-1
INTRODUCTION
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Table of Contents
Troubleshooting
