The 5-Band Structure; Putting The 5-Band Structure On The Air - Orban OPTIMOD 6300 Operating Manual

OPTIMOD 6300 DIGITAL
ratio is less than infinite, the effective breakpoint of the compressor will be lower
than 2B B
REAKPOINT
The main use of the 2B B
tionably increasing audio density when using low compression ratios and a signifi-
cant amount of gain reduction—for example, 10 dB. The 2B B
best adjusted by ear. If you find that density increases too much as gain reduction
increases, lower the 2B B
density at high amounts of gain reduction, increase the 2B B
ting. 10 dB is a good starting point for setting this control.
2B Crossover sets the structure of the 2-band crossover to Allpass or Linear. See
AGC C
ROSSOVER
Loudness Controller Attack: See Loudness Control on page 3- 11.
Loudness Controller Bass Couple: See Loudness Control on page 3- 11.

The 5-band Structure

The 5-band structure consists of a stereo enhancer, a slow gain-riding 2-band AGC,
an equalization section, a 5-band compressor, a dynamic single-ended noise reduc-
tion system, an output mixer (for the five bands), and a low-IM look-ahead limiter.
Unlike the 2-band structure, whose 2-band compressor has a continuously variable
release time, the release time of the 5-band compressor is switchable to seven in-
crements between slow and fast. Each setting makes a significant difference in the
overall flavor and quality of the sound.
When the input is noisy, you can sometimes reduce the noise by activating the sin-
gle-ended noise reduction system. Functionally, the single-ended noise reduction
system combines a broadband downward expander with a program-dependent low-
pass filter. This noise reduction can be valuable in reducing audible hiss, rumble, or
ambient studio noise. We use it for the news and sports factory presets.
The 5-band structure does not have a separate Loudness Controller because its 5-
band compressor automatically re-equalizes the spectral balance of various pieces of
program material in a way that tends to make their loudness more consistent.

Putting the 5-band Structure on the Air

The 5-band structure is very flexible, enabling you to fine-tune your sound for your
target audience and desired market position. There are several basic Factory Presets
for the 5-band structure. Each of these presets can be edited with the L
control. This control affects the sound-for-picture-oriented presets differently than it
does the music presets (presets with "music" in their names). When a sound-for-
setting.
REAKPOINT control is to prevent the compressor from objec-
control's setting. If you would like to have more
REAKPOINT
on page 3-45 for more detail about these modes.
OPERATION
control is
REAKPOINT
control's set-
REAKPOINT
-M
ESS ORE
3-55