46 Multi Format LCD Monitor
● The purpose of loudness control in programme exchange, in order to be uniform for
di erent sources and programme types.
● It is based on an Leq measurement employing K-weighting, which is a de ned by The
International Telecommunication Union: ITU BS.1770 (Leq:equivalent continuous sound
pressure level in dB)
[11] LOUDNESS
8. Other Functions
- CH = Channel : stereo or 5.1 ch
- I = Integrated loudness : Average
loudness for program time
- S = Short-term loudness : 3 second
average loudness
- Smax = Short-term Maximum loudness
- M = Momentary loudness : 0.4 second
average loudness
- Mmax = Momentary Maximum loudness
- LRA = Loudness range : Variation in a
time-varying loudness
high = Loudness upper value
low = Loudness lower value
- Time = Time for measured
- Status = Running or Stand-by
Loudness info Loudness log
Long time log
Selectable time period
8m/16m/32m/1h/2h
Short time log
4sec
Loudness bar
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