Cross-adaptive polarity switching strategies for optimization of audio mixes

Pedro Duarte Pestana*, Joshua D. Reiss, Álvaro Barbosa

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Crest factor is an often overlooked part of audio production, yet it acts as an important limit to overall loudness. We propose a technique to optimize relative polarities in order to yield the lowest possible peak value. We suggest this is a way of addressing loudness maximization that is more sonically transparent than peak limiting or compression. We also explore additional uses that polarity analysis may have in the context of mixing audio. Results show this is a fairly effective strategy, with average crest factor reductions of 3 dB, resulting in equivalent values for loudness enhancement. While still not comparable to the amount of reduction peak limiters are typically used for, the approach is seen as more transparent via subjective evaluation, through a multi-stimulus test.
Original languageEnglish
Title of host publication138th Audio Engineering Society Convention, AES 2015
Place of PublicationWarsaw
PublisherAudio Engineering Society
Pages154-164
Number of pages11
ISBN (Electronic)9781510806597
Publication statusPublished - 2015
Event138th Audio Engineering Society Convention, AES 2015 - Warsaw, Poland
Duration: 7 May 201510 May 2015

Publication series

Name138th Audio Engineering Society Convention 2015
Volume1

Conference

Conference138th Audio Engineering Society Convention, AES 2015
Country/TerritoryPoland
CityWarsaw
Period7/05/1510/05/15

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