RTW TouchMonitor TM3-3G Smart Bedienungsanleitung Seite 136

The bargraphs available in the Loudness Sum instrument show the following:
• M (Momentary): Summed momentary loudness measurements of the
• S (Short Term): Summed loudness measurement using an integration
• I (Integrated):
The three bar graphs representing these loudness measurements can be
activated or disabled individually.
Two different scale types are available for loudness measurements:
• Absolute scale in LKFS or LUFS (depending on the loudness standard
selected).
• Relative scale in LU.
On the relative scale, 0 LU corresponds to their target level defi ned in the
selected loudness standard. In EBU R128, the target level is –23 LUFS.
In ATSC A/85, the target level is –24 LKFS. –23 LUFS is identical to –23
LKFS.
In order to conform to the individual loudness standard used, the mea-
sured program should read the „Integrated" target level of this standard.
Using EBU R128, it should read 0 LU on a relative scale or –23 LUFS on
an absolute scale.
Factory presets using the Loudness Sum instrument:
• 2CH SDI ATSC LRA+CORR
• 2CH SDI EBU LRA+CORR
• 3 X 2CH SDI ATSC
• 3 X 2CH SDI EBU
• 5.1 SDI ATSC LRA
• 5.1 SDI ATSC LRA+TC
• 5.1 SDI EBU LRA
• 5.1 SDI ATSC MON
• 5.1 SDI EBU MON
• 5.1+2CH SDI ATSC MON
• 5.1+2CH SDI EBU MON
EN-48 5 | Instruments | 5.2 | Loudness Sum
individual channels using an integration time of 400 ms.
time of 3 s and a sliding window.
Overall program loudness between start and end
points that are entered manually. Use the Start, Stop
and Reset buttons to execute this measurement.
Manual | TM3-3GS