A method for efficiently calculating head-related transfer functions directly from head scan point clouds

Rahulram Sridhar, Edgar Yazid Choueiri

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

A method is developed for efficiently calculating head-related transfer functions (HRTFs) directly from head scan point clouds of a subject using a database of HRTFs, and corresponding head scans, of many subjects. Consumer applications require HRTFs be estimated accurately and efficiently, but existing methods do not simultaneously meet these requirements. The presented method uses efficient matrix multiplications to compute HRTFs from spherical harmonic representations of head scan point clouds that may be obtained from consumer-grade cameras. The method was applied to a database of only 23 subjects, and while calculated interaural time difference errors are found to be above estimated perceptual thresholds for some spatial directions, HRTF spectral distortions up to 6 kHz fall below perceptual thresholds for most directions.

Original languageEnglish (US)
Title of host publication143rd Audio Engineering Society Convention 2017, AES 2017
PublisherAudio Engineering Society
Pages709-717
Number of pages9
ISBN (Electronic)9781510870703
StatePublished - Jan 1 2017
Event143rd Audio Engineering Society Convention 2017, AES 2017 - New York, United States
Duration: Oct 18 2017Oct 20 2017

Publication series

Name143rd Audio Engineering Society Convention 2017, AES 2017
Volume2

Other

Other143rd Audio Engineering Society Convention 2017, AES 2017
CountryUnited States
CityNew York
Period10/18/1710/20/17

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Modeling and Simulation
  • Acoustics and Ultrasonics

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