SW32002: Loudness & SPL
Premium Loudness, SPL and LRA
Extension with graphical and numerical instruments for Loudness measurements
The Loudness & SPL license expands the basic PPM instrument with graphical and numerical instruments for loudness measurements as described in current loudness guidelines (EBU R128, ITU-R BS.1770-4/1771-1, ATSC A/85, ARIB, OP-59, AGCOM, CALM, LEQ(M), TASA, SAWA).
The range of metering instruments is extended with our highly recommended LRA instrument for the graphical display of the Loudness Range.
- Full implementations of the latest loudness standards and recommendations
- Bargraphs for summed Loudness with Momentary, Shortterm, Integrated values, and Loudness Range (LRA)
- Numerical display of all relevant values like M, S, I, LRA, TPmax, Mmax, Smax, Itime
- Adds the LRA instrument
For signals with more than four channels, software license SW32001 is required.
Loudness Sum
With the Loudness Sum instrument you get a bargraph display of the summed Loudness values M, S, and/or I of a Loudness measurement acc. to EBU R128, ITU BS.1770-4/1771-1, ARIB, ATSC A/85, OP-59, AGCOM, CALM Act, LEQ(M), TASA, SAWA, or specified by customer.
A SPL meter is also included.
Loudness Num
With the Loudness Num instrument you can monitor some or all relevant values of a loudness measurement on a numerical display: M, S, I, LRA, TPmax, Mmax, Smax, Itime.
LRA (Loudness Range)
The LRA (Loudness Range) instrument displays a graphical representation of the loudness variances within short time periods.
These are measured against the Loudness Range (LRA) descriptor specified in EBU R 128.
It is used to show whether a program has a continuously constant loudness or a high variation between low and high level components.
It allows for making assumptions on whether the program has seen or requires dynamic processing with regard to the intended distribution path.
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