Psychoacoustical experiments on loudness perception in wave field synthesis

Florian Völk, Martin Straubinger, Hugo Fastl

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

2 Scopus citations

Abstract

Wave field synthesis is an audio reproduction procedure aiming to produce a sound field completely correct at least within the so called listening area. In theory, the exact synthesis is possible under certain circumstances based on the Kirchhoff-Helmholtz integral equation. For practical realizations, usually closed loudspeaker boxes are employed. However, using closed loudspeaker boxes leads to a deviation of the synthesized from the intended wave field and requires approximations in the derivation of the loudspeaker driving signals, since preliminaries of the Kirchhoff-Helmholtz integral equation are not fulfilled anymore. If wave field synthesis is employed in a typical listening environment, room influences further disturb the resulting sound field. Whether auditory perceptions generated by such a system equal those occurring in the reference scene is unclear. Within this contribution, loudness adjustments of narrow band noises presented by wave field synthesis to the free field case are shown. The results of these experiments under different room acoustical conditions are discussed and compared to a baseline, where a single loudspeaker in the same reproduction room was adjusted to the free field situation. Further, the acquired data are compared to the prognoses of a typical loudness model according to DIN 45 631/A1.

Original languageEnglish
Title of host publication20th International Congress on Acoustics 2010, ICA 2010 - Incorporating Proceedings of the 2010 Annual Conference of the Australian Acoustical Society
Pages3382-3389
Number of pages8
StatePublished - 2010
Event20th International Congress on Acoustics 2010, ICA 2010 - Incorporating the 2010 Annual Conference of the Australian Acoustical Society - Sydney, NSW, Australia
Duration: 23 Aug 201027 Aug 2010

Publication series

Name20th International Congress on Acoustics 2010, ICA 2010 - Incorporating Proceedings of the 2010 Annual Conference of the Australian Acoustical Society
Volume5

Conference

Conference20th International Congress on Acoustics 2010, ICA 2010 - Incorporating the 2010 Annual Conference of the Australian Acoustical Society
Country/TerritoryAustralia
CitySydney, NSW
Period23/08/1027/08/10

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