Audio Quality Moderates Localisation Accuracy : Two Distinct Perceptual Effects?

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review

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Detail(s)

Original languageEnglish
Title of host publicationProceedings - 138th Audio Engineering Society Convention 2015
PublisherAudio Engineering Society
Pages797-806
Number of pages10
Volume2
ISBN (Print)978-1-5108-0659-7
Publication statusPublished - May 2015
Externally publishedYes

Conference

Title138th Audio Engineering Society Convention, AES 2015
PlacePoland
CityWarsaw
Period7 - 10 May 2015

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Abstract

Audio quality is known to cross-modally influence reaction speed, sense of presence, and visual quality. We designed an experiment to test the effect of audio quality on source localisation. Stimuli with different MP3 compression rates, as a proxy for audio quality, were generated from drum samples. Participants (n = 18) estimated the position of a snare drum target while compression rate, masker, and target position were systematically manipulated in a full-factorial repeated-measures experiment design. Analysis of variance revealed that location accuracy was better in wide target positions than in narrow, with a medium effect size; and that the effect of target position was moderated by compression rate in different directions for wide and narrow targets. The results suggest that there might be two perceptual effects at play: one, whereby increased audio quality causes a widening of the soundstage, possibly via a SMARC-like mechanism, and two, whereby it enables higher localisation accuracy. In the narrow target positions in this experiment, the two effects acted in opposite directions and largely cancelled each other out. In the wide target presentations, their effects were compounded and led to significant correlations between compression rate and localisation error.

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Audio Quality Moderates Localisation Accuracy : Two Distinct Perceptual Effects? . / Lindborg, PerMagnus; Kwan, Nicholas A.

Proceedings - 138th Audio Engineering Society Convention 2015. Vol. 2 Audio Engineering Society, 2015. p. 797-806.

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review

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