P-HRTF: Efficient personalized HRTF computation for high-fidelity spatial sound

Alok Meshram, Ravish Mehra, Hongsheng Yang, Enrique Dunn, Jan Michael Franm, Dinesh Manocha

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

35 Scopus citations

Abstract

Accurate rendering of 3D spatial audio for interactive virtual auditory displays requires the use of personalized head-related transfer functions (HRTFs). We present a new approach to compute personalized HRTFs for any individual using a method that combines state-of-the-art image-based 3D modeling with an efficient numerical simulation pipeline. Our 3D modeling framework enables capture of the listener's head and torso using consumer-grade digital cameras to estimate a high-resolution non-parametric surface representation of the head, including the extended vicinity of the listener's ear. We leverage sparse structure from motion and dense surface reconstruction techniques to generate a 3D mesh. This mesh is used as input to a numeric sound propagation solver, which uses acoustic reciprocity and Kirchhoff surface integral representation to efficiently compute an individual's personalized HRTF. The overall computation takes tens of minutes on multi-core desktop machine. We have used our approach to compute the personalized HRTFs of few individuals, and we present our preliminary evaluation here. To the best of our knowledge, this is the first commodity technique that can be used to compute personalized HRTFs in a lab or home setting.

Original languageEnglish
Title of host publicationISMAR 2014 - IEEE International Symposium on Mixed and Augmented Reality - Science and Technology 2014, Proceedings
EditorsRobert W. Lindeman, Christian Sandor, Simon Julier
Pages53-61
Number of pages9
ISBN (Electronic)9781479961849
DOIs
StatePublished - 5 Nov 2014
Event13th IEEE International Symposium on Mixed and Augmented Reality, ISMAR 2014 - Munich, Germany
Duration: 10 Sep 201412 Sep 2014

Publication series

NameISMAR 2014 - IEEE International Symposium on Mixed and Augmented Reality - Science and Technology 2014, Proceedings

Conference

Conference13th IEEE International Symposium on Mixed and Augmented Reality, ISMAR 2014
Country/TerritoryGermany
CityMunich
Period10/09/1412/09/14

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