The direction dependent analysis of impulse response measurements using spherical microphone arrays can deliver a universal basis for binaural auralization. A new method using dual radius open sphere arrays is proposed to overcome limitations in practical realizations of such arrays. Different methods to combine the two radii have been analyzed and will be presented. A plane wave decomposition in conjunction with a high resolution HRTF database is used to generate a binaural auralization, wherein the different designs are simulated under ideal and real conditions. The results have been evaluated in a quality grading experiment. It is shown that the dual radius cardioids design is an effective method to enhance the perceived quality in comparison to conventional spherical array designs.

Authors: Melchior, Frank; Thiergart, Oliver; Del Galdo, Giovanni; de Vries, Diemer; Brix, Sandra
Affiliations: Fraunhofer IDMT, Ilmenau, Germany; Fraunhofer IIS, Erlangen, Germany; IOSONO GmbH, Erfurt, Germany; TU Delft, Delft, The Netherlands(See document for exact affiliation information.)
AES Convention: 127 (October 2009) Paper Number: 7855
Publication Date: October 1, 2009 Import into BibTeX
Subject: Virtual Acoustics
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=15050

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD 127Papers)   /127/7855.pdf

Start a discussion about this paper!