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The “loudness war” still rages, but with major digital streaming services switching to loudness normalization by default, its end is near. Since absolute loudness is no longer effective at making music “stand out,” engineers are finding it much more effective to optimize microdynamics instead. The overall PLR (Peak to Loudness Ratio) of an audio track is widely recognized as a useful metric to assess the overall microdynamics of a section of audio and the likely results of normalization. However, short-term variations are also important, especially when judging the results of compression and limiting on audio quality, and these can be usefully assessed by a real-time property known as PSR (Peak to ShortTerm Loudness Ratio). PSR is found to be straightforward and intuitive to use, and several popular meters are already reporting it. This paper proposes a standardization of the term, to encourage consistency and adoption.
Author (s): Shepherd, Ian; Grimm, Eelco; Tapper, Paul; Kahsnitz, Michael; Kerr, Ian
Affiliation:
Mastering Media Ltd, Cambridge, Cambridgeshire, UK; HKU University of the Arts, Utrecht, Netherlands; Grimm Audio, Eindhoven, The Netherlands; Nugen Audio, UK; RTW, Cologne, Germany; MeterPlugs Audio Inc., Vancouver, BC, Canada
(See document for exact affiliation information.)
AES Convention: 143
Paper Number:373
Publication Date:
2017-10-06
Import into BibTeX
Session subject:
Applications in Audio
Permalink: https://aes2.org/publications/elibrary-page/?id=19324
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Shepherd, Ian; Grimm, Eelco; Tapper, Paul; Kahsnitz, Michael; Kerr, Ian; 2017; Measuring Micro-Dynamics—A First Step: Standardizing PSR, the Peak to Short-Term Loudness Ratio [PDF]; Mastering Media Ltd, Cambridge, Cambridgeshire, UK; HKU University of the Arts, Utrecht, Netherlands; Grimm Audio, Eindhoven, The Netherlands; Nugen Audio, UK; RTW, Cologne, Germany; MeterPlugs Audio Inc., Vancouver, BC, Canada; Paper 373; Available from: https://aes2.org/publications/elibrary-page/?id=19324
Shepherd, Ian; Grimm, Eelco; Tapper, Paul; Kahsnitz, Michael; Kerr, Ian; Measuring Micro-Dynamics—A First Step: Standardizing PSR, the Peak to Short-Term Loudness Ratio [PDF]; Mastering Media Ltd, Cambridge, Cambridgeshire, UK; HKU University of the Arts, Utrecht, Netherlands; Grimm Audio, Eindhoven, The Netherlands; Nugen Audio, UK; RTW, Cologne, Germany; MeterPlugs Audio Inc., Vancouver, BC, Canada; Paper 373; 2017 Available: https://aes2.org/publications/elibrary-page/?id=19324
@article{shepherd2017measuring,
author={shepherd ian and grimm eelco and tapper paul and kahsnitz michael and kerr ian},
journal={journal of the audio engineering society},
title={measuring micro-dynamics—a first step: standardizing psr, the peak to short-term loudness ratio},
year={2017},
number={373},
month={october},}