In Audition CC, you can measure loudness in audio clips and apply correction to support various loudness standards and true peak limiting.
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Opomba:
Maximum True Peak Limiting prevents a signal from crossing a pre-defined limit, which otherwise can potentially damage speakers and other output devices. True Peak Limiting ensures that the signal never exceeds the limit.
to analyze the current loudness values for each clip.
- ITU BS1770
- ITU BS1770-2
- ITU BS1770-3 only differs from ITU BS1770-2 by removing filters from the true peak level measurement that have been optional beforehand.
- EBU R128 (Target Loudness: -23 LUFS +/-0.5 LUFS (+/-1 LUFS for live content), True Peak: -1dB). EBU also provides corresponding test signals.
- EBU TECH3341 defines how to measure momentary, short-term and integrated loudness based on ITU BS1770-2
- EBU TECH3342 defines how to measure loudness range (LRA) based on short-term loudness (using a relative gate of -20LU instead of -10LU) and taking the 10th and 95th percentile
- EBU TECH3343 describes the correction part of the loudness workflow (see chapter 4.4 and 6)
- EBU TECH3344 describes loudness metering usage in distribution systems
- EBU R128 s1 defines loudness measurement for short form content such as commercials
- ATSC A/85 (Target Loudness: -24 LUFS +/-2 LUFS, True Peak: -2dB)
- FreeTV OP59
- ARIB TR-B32
- PRSS (National Public Radio)
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