Omnia 6FM, Инструкция по установке и эксплуатации

Страница: 87 / 130

Omnia 6 Use and Installation Guide – Version 1.00a
71
71
• Increase the Drive to each section using the controls in the Limiter XO screen.
• Increase the Release time settings in each band so that they operate faster.
• Set the Hold threshold to a lower value.
3. Drive the Clipper sections harder.
4. A combination of the above steps, but in small increments! It might sound crazy, but it’s true! In
this situation, resist the temptation to make too many changes at once. When that occurs, it
becomes difficult to determine why the result of an adjustment did or did not make sense. Focus
on one specific area of your sound at a time. Once that area is satisfactory, then move the focus to
the next area, as needed.
Based upon the above suggestions, you can experiment with different styles of processing. Some
broadcasters prefer to have their processing be perceptibly loud, but dynamic. This may not result in the
loudest station on the dial, but it still gives the illusion of loudness, retaining detail and clarity, and
reducing listener fatigue. This can be done by centering your efforts in the Limiter sections, and avoiding
heavy use of the clipper. One trick that works well is to use very fast attack and release times in the
multiband limiters, but do not let them produce more than 5 dB - 7 dB of gain reduction. This keeps the IM
distortion of the limiters to a minimum, and doesn't "over-squash" your sound. Adjusted in this manner, the
Limiter sections are relied upon to generate higher long-term RMS levels, which translates into increases in
perceived loudness.
If the quest is to produce the “loud and proud” appearance of the “big boys” in town, then the limiters and
clippers should both be leaned upon a bit more. Loudness at all costs is usually the reason for moving the
processing in a direction like this. Using larger amounts of drive to the multiband limiters, along with faster
release times will generate a signal of high short-term density. Also, an increase in clipping will further aid
this. The effect of the processing set in this manner is that the audio is consistently loud at all times . . . a
wall of sound. The drawback is that the
density can cause listener fatigue and have a negative effect on time
spent listening. While Omnia-6 is designed to minimize listener fatigue, it is capable of generating large
amounts of density that could eventually lead to fatigue. Be careful!
Adding More Detail — When Loudness Isn’t the Last Word
Now that we’ve “squashed the grape,” lets look at what it takes to undo a heavily processed signal.
Basically, just reversing the procedures listed above will do the trick:
1. Reduce the drive to the Clipper.
2. Back off on the influence of the Limiter stages:
• Reduce the amount of Drive to each band in the Limiter XO screen.
• Reduce the Release times to slow down recovery.
• Raise the threshold of the Hold function.
3. Ease up on the Wideband-AGC sections:
• Reduce the Drive to the WB AGC and the Multiband AGC bands in the WB and AGC XO
screens.