Processing M Eters; Processing M Eters D Isplay - Omnia .9 Installation And Operation Manual

Omnia.9's P rocessing M eters
Understanding t he P rocessing M eters D isplay
The Processing Meters Display provides a tremendous amount of information about what's going
on i nside e ach o f O mnia.9's p rocessing c ores, b ut i n a v ery e fficient a nd e asy-­‐to-­‐read m anner.
In the FM processing core, meters are provided for monitoring input levels, Input AGC, Wideband
AGC1, Multiband AGC and Limiters, Multiband Noise Reduction, Multiband Stereo Enhancement,
Wideband A GC2 s ections, p ost-­‐multiband o utput, M PX o utput, a nd i ndividual l eft a nd r ight o utputs
In t he H D a nd S treaming c ores, m eters f or t he f inal l ook-­‐ahead p eak l imiters a nd t he f inal o utput o f
the processing core are added, while the MPX output and left and right output meters are
eliminated.
The ITU BS.1770 Input meters indicate the level of the unprocessed source audio coming into
Omnia.9 w ith f loating p eak i ndicators a bove e ach b ar.
The AGC meter window shows the levels and action of the Input AGC and the Wideband AGC1
compressors. It also shows the level of the Wideband AGC2 section when it is enabled and
positioned b efore t he m ultiband s ection.
Depending upon the settings of the various Input and Wideband AGC1/AGC2 controls, the
scale to the left of the meter can display levels below threshold (positive numbers) as well
as levels above threshold (negative numbers). When the meters dip down below "0" the
compressors a re a bove t hreshold a nd t herefore i n a s tate o f g ain r eduction. W hen t hey r ise
above "0" they are below threshold and in a state of gain increase. The combination of
Input AGC, AGC1, and AGC2 gain is added together to determine the total amount of AGC
gain i n p lace.
The Input AGC levels are indicated by a bright yellow bar. The Wideband AGC1 levels are
shown as a dark orange bar extending below the Input AGC meter. Wideband AGC2 levels
(if this compressor is situated before the multiband section) are shown as a second, darker
orange b ar b elow t he A GC1 m eter.
WB A GC1
Input A GC
WB A GC2
Input
31