CHAPTER 17
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FM MENU METER OPTIONS
Loudness Matched A/B Menu
The ability to compare the sound of the input audio to the processed output audio is valuable when adjusting your processing.
Because the human ear often misinterprets “louder” as “better” for the first few seconds after it hears a new sound, making sure
the average levels of the input and output audio closely match eliminates that distraction so that your ear can concentrate on
the other changes the processor is making to the texture, dynamics, and spectral balance of the audio.
It is possible to manually adjust these levels in the Monitor Output Menu as you switch back and forth between patch points,
but because input levels vary so much within and between songs, this can get tricky (or just plain annoying), throws your ear
for a momentary loop, and takes your mind off the careful study of the changes you’re making to your processing.
To make A/B comparisons easier, Omnia.9 can apply automatic leveling to several key input patch points and makes those
available here in the Meter Options Menu (for display purposes) as well as in each of the Monitor Outputs menus.
Note:
This leveling function aects ONLY the audio available at the patch point. It has NO eect on the on-air
processing.
♦ The Integration Time setting controls the integration time of the two ITU BS.1770 loudness meters that form the basis
for the loudness comparison. The loudness is equalized by a ramping gain to account for the difference between the two
loudness meters. The default time is 1 second; 3 seconds is optional. The 1 second integration time will cause the leveler
to respond to differences in level more quickly, providing more consistent levels between A and B, while the 3 second
time will allow more level variation and reduces the likelihood of audible pumping.
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