Orban OPTIMOD 6300 Operating Manual page 174

3-32
OPERATION
a User Preset.

The TVxxx presets are tuned to work harmoniously with Dolby Dialnorm meta-
data in Dolby Digital transmission channels. See step 12 on page 2-28.

The TVAxxx are tuned to produce the same loudness as the general purpose TV
presets in Orban's processors for analog aural carriers, such as Optimod-TV 8282
and 8382. Dialnorm is set to –17 dB, which facilitates this loudness match. See
step (10.D) on page 2-25.
TV 2B–GEN PURPOSE (TV Two-Band General Purpose): This preset accommodates
most dramatic programming (particularly older material), providing gentle gain con-
trol that limits dynamic range to a level that provides the general audience with
consistently intelligible dialog. It sounds very similar to Orban's analog OPTIMOD-TV
(Model 8182A) when that unit is adjusted for "General" programming according to
the instructions in its operating manual. This preset retains the spectral balance of
its input as much as possible. TV 2B-G
sports, or films with optical soundtracks. The Five-Band presets (see below) can
automatically equalize such program material when its spectral balance is inappro-
priate and can also apply single-ended dynamic noise reduction.
These presets defeat the AGC and do all gain riding with the two-band compressor,
which is set for reverse exponential release. This release characteristic does not sig-
nificantly increase the density of material whose level is well controlled while still
performing fast correction of levels that are too low. The Loudness Controller is ac-
tive, so this preset controls loudness tightly.
For modern dramatic programming, you may prefer the TV 5B-DRAMA preset, which
preserves more of the mixes' original dynamic range.
TV 2B GEN PURP –LC (TV Two-Band General Purpose without Loudness Controller):
This preset is the same as TV 2B-GEN PURPOSE except the Loudness Controller is
turned off and the MB D
the same loudness as TV 2B-GEN PURPOSE. Because the Loudness Controller is inac-
tive, this preset has more dynamic punch than TV 2B-GEN PURPOSE, but the loud-
ness of highly processed material (like commercials with a lot of midrange boost)
may be objectionably loud.
TV 5B-GEN PUR W/NR (TV Five-Band General Purpose with Noise Reduction): pro-
vides effective dynamic range control and "automatic re-equalization" of most dra-
matic material. It uses the Loudness Controller to control loudness tightly. It applies
single-ended noise reduction to the material, which will reduce unwanted noise like
hiss, hum, or stage rumble. However, it will also reduce ambience. If the program
material is carefully produced (as are most contemporary feature-film soundtracks),
you may wish to use TV 5B-G
if the material is so well produced that it would not benefit from "automatic re-
equalization," use TV 2B-G
TV 5B-GEN PURPOSE (TV Five-Band General Purpose without Noise Reduction): is
identical to TV 5B-G
EN
tion system is off.
P
EN URPOSE
control is backed off by 3 dB to achieve approximately
RIVE
P
EN URPOSE (which does not apply noise reduction), or,
P
EN URPOSE .
P W/N
except that the single-ended dynamic noise reduc-
UR R
ORBAN MODEL 6300
is not the best choice for live news,