Imagine Videotek LLM-1770, Installation And Operation Manual

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Chapter 3
Operation
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ATSC A/85 Loudness Mode
The display in ATSC A/85 loudness mode shows selections that follow ATSC recommended
practice A/85. Up to four measurements (as controlled from the menus) can be displayed.
Figure 3-5 Display in ATSC A/85 Loudness Mode
Table 3-4 ATSC A/85 Display Information Descriptions
Key Description
1 Maximum true peak (in dBTP)
2 Channel (Left, Right, Center, Left Surround, Right Surround)
where maximum true peak was detected
3 Program loudness (in LKFS or LU)
4 Integrated loudness (in LKFS or LU)
5 Momentary loudness (represented as 0 to -70 LKFS)
6 Dialnorm value as extracted from Dolby metadata. The Dialnorm
Source is selectable in the Dolby Setup menu and can be derived
from VANC or from the Dolby Decoder input. If the Dolby option
is not installed, the Dialnorm Source defaults to Dolby E VANC.
"- -" Indicates that no dialnorm value was found.