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lM6
Radar Speed
Radar Speed controls how long time each radar revolution
takes. Select from 1 minute to 24 hours. You may “zoom”
between the settings, as long as the history isn’t reset.
Pressing the Reset key resets the meter and descriptor
history.
Radar Resolution
Radar Resolution sets the difference in loudness between
each concentric circle in the Radar between 3 and 12 dB.
Choose low numbers when targeting a platform with a low
dynamic range tolerance. You may “zoom” between the
settings, as long as the history isn’t reset.
Low Level Below
Low Level Below determines where the shift between
green and blue happens in the outer ring. It indicates to the
engineer that level is now at risk of being below the noise
floor.
Alert Indicator
Stereo Integrity
The indicator indicates a lack of stereo integrity based
on measuring the difference of left/right inputs. If there
is a consistent difference between left and right over a
prolonged time, the LED is lit.
5.1 Integrity
In this mode, Integrity is based on the signal levels on
L,R,C,LS and RS channels. If one or more of the channels
drop out over a prolonged time, the LED is lit.
Stereo or 5.1 Integrity
In this mode, Integrity is given when either Stereo or 5.1
Integrity are detected. This means that the LED is lit when
neither valid Stereo nor 5.1 signals are detected.
Off
The Alert indicator is disabled.
United States
Page 11 of ATSC A/85 (May 25, 2011) references ITU-R
BS.1770-1, even though BS.1770-2 was in effect at
that time. The same page also says that “All referenced
documents are subject to revision”. The wording is
ambiguous and it’s up to the reader to decide whether or
not a relative gate (the difference between BS.1770-1 and
BS.1770-2) is applied when measuring Program Loudness.
The “Leq(K)” setting in LM2 disables the relative gate,
while the setting “BS.1770-2” includes a relative gate at
-10 LU. The BS.1770-2 setting is better across genres and
for controlling loud commercials. Check in at www.atsc.org
to see if the CALM act has forced ATSC to make up their
mind.
Target Level in United States is -24 LUFS, measurement
gating not clearly defined.
Measure Scale
This parameter can be set to either “Loudness Units, LU”
or “Loudness Units Full Scale, LUFS”
When “LUFS” is selected, the numbers in the outer ring of
the Radar page apply. When “LU” is selected, numbers are
shown around a “0” denoting LU Reference.
LU Reference
0 LU Equals sets the loudness required to obtain a 12
o’clock reading on the outer ring, which is the same as the
border between green and yellow on the Radar page. 0 LU
is the reference to aim at.
Peak Indicator
This parameter sets at which level the peak indicator will
be invoked.
Setup
Momentary Range
EBU +9 or EBU +18
Set range on the radar-meter
EBU mode meters are able to display to show two different
momentary displays: One with a narrow loudness range
intended for normal broadcast and denoted “EBU +9”, and
one with a wide loudness range intended for film, drama
and wide range music denoted “EBU +18”.
The “EBU +9” setting gives a momentary meter range
from -18 to +9 LU, while the “EBU +18” settings gives a
momentary range from -36 to 18 LU.
Содержание SYSTEM 6000 MKII
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