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
Subject: Virtual Acoustics

Click to purchase paper as a non-member or you can login as an AES member to see more options.

No AES members have commented on this paper yet.

Subscribe to this discussion

To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.

Start a discussion!

If you would like to start a discussion about this paper and are an AES member then you can login here:
Username:
Password:

If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.