RTW TouchMonitor TM3 Smart Bedienungsanleitung Seite 123

The bargraphs available in the Loudness Sum instrument show the fol-
lowing:
• 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.
• 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 AES EBU SUM LOUDNESS
• 2CH AES ATSC SUM LOUDNESS
• 3 X 2CH EBU LOUDNESS
• 3 X 2CH ATSC LOUDNESS
• 2CH SPDIF EBU TP LOUDNESS
• 2CH SPDIF ATSC TP LOUDNESS
Manual | TM3S
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.
5 | Instruments | 5.2 | Loudness Sum
EN
EN-43