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Loudness standards for broadcast audio, such as BS.1770, establish target values for the integrated loudness, true peak level, and short-term loudness of a record. Compliance with these three targets can be challenging when the dynamic range of a record is high, so software for automatic loudness correction is important for speeding up the workflow of post-production engineers. This work reviews existing software implementations of automatic loudness correction and proposes a new algorithm that provides efficient simultaneous correction of all three targets.
Author (s): Lukin, Alexey; McClellan, Russell; Wishnick, Aaron
Affiliation:
iZotope, Inc., Cambridge, MA, USA
(See document for exact affiliation information.)
AES Convention: 141
Paper Number:9683
Publication Date:
2016-09-06
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Session subject:
Signal Processing
Permalink: https://aes2.org/publications/elibrary-page/?id=18487
(266KB)
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Lukin, Alexey; McClellan, Russell; Wishnick, Aaron; 2016; A Two-Pass Algorithm for Automatic Loudness Correction [PDF]; iZotope, Inc., Cambridge, MA, USA; Paper 9683; Available from: https://aes2.org/publications/elibrary-page/?id=18487
Lukin, Alexey; McClellan, Russell; Wishnick, Aaron; A Two-Pass Algorithm for Automatic Loudness Correction [PDF]; iZotope, Inc., Cambridge, MA, USA; Paper 9683; 2016 Available: https://aes2.org/publications/elibrary-page/?id=18487