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Main Title: Cross-validation of measured and modeled head-related transfer functions
Author(s): Brinkmann, Fabian
Lindau, Alexander
Müller-Trapet, Markus
Vorländer, Michael
Weinzierl, Stefan
Type: Conference Object
Language Code: en
Abstract: In the current study, we present full-spherical high resolution head-related transfer function (HRTF) datasets of the head and torso simulator FABIAN including data for multiple head-above-torso orientations within a typical horizontal rotation range of ± 50 degrees. While the first dataset was measured acoustically using sequential swept sines, the second one was modeled numerically using the boundary-element method accelerated with the fastmultipole method (FMM-BEM). Comparison of magnitude spectra revealed a good agreement at mid and high frequencies, but increasing differences at frequencies below 200 Hz which could be attributed to the limited frequency range of the measurement loudspeaker. Additionally, an analysis of times of arrival (TOA) revealed differences which were presumably caused by mechanical inaccuracies of the physical measurement setup. Consequently, by using the modeled data as a reference, in the measured head-related impulse responses (HRIRs), we corrected TOAs by fractionally delaying, and extrapolated the low frequency range.
Issue Date: 2015
Date Available: 12-Aug-2019
DDC Class: 534 Schall und verwandte Schwingungen
620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
Subject(s): head-related transfer function
head-related impulse responses
Sponsor/Funder: DFG, 174776315, FOR 1557: Simulation and Evaluation of Acoustical Environments (SEACEN)
Proceedings Title: Fortschritte der Akustik - DAGA 2015: 41. Jahrestagung für Akustik, 16. - 19. März 2015 in Nürnberg
Publisher: Deutsche Gesellschaft für Akustik e.V.
Publisher Place: Berlin
Page Start: 1118
Page End: 1121
ISBN: 978-3-939296-08-9
Appears in Collections:FG Audiokommunikation » Publications

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