Sweet Spot Size in Virtual Sound Reproduction: A Temporal Analysis

Publikation: Forskning - peer reviewKonferenceartikel i proceeding

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The influence of head misalignments on the performance of binaural reproduction systems through loudspeakers is often evaluated in the frequency domain. The changes in magnitude give us an idea of how much of the crosstalk is leaked into the direct signal and therefore a sweet spot performance can be estimated. However, as we move our heads, the time information of the binaural signals is also affected. This can result in ambiguous cues that can destroy the virtual experience. In this paper, we present an analysis in the time domain of the influence of head misalignments. Using the interaural cross-correlation we estimate the interaural time delay and define a sweet spot. The analysis is based on measurements carried out on 21 different loudspeaker configurations, including two- and four-channels arrangements. Results show that closely spaced loudspeakers are more robust to lateral displacements than wider span angles. Additionally, the sweet spot as a function of head rotations increases systematically when the loudspeakers are placed at elevated positions.
OriginalsprogEngelsk
TitelProceedings of IWPASH 2009
RedaktørerYoiti Suzuki, Douglas Brungart, Hiroaki Kato, Kazuhiro Iida, Densil Cabrera, Yukio Iwaya
Antal sider4
UdgiverWorld Scientific
Udgivelsesdato2009
ISBN (elektronisk)978-981-4299-31-2
StatusUdgivet

Konference

KonferenceInternational Workshop on the Principles and Applications of Spatial Hearing (IWPASH)
LandJapan
BySendai
Periode11-11-0913-11-09

Bibliografisk note

Paper P18.
Abstract i Book of Abstracts s. 36

ID: 18595401