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Convention Paper

Variation of Interaural Time Difference Caused by Head Offset Relative to Coordinate Origin

Authors: Yu, Guangzheng; Wu, Yuye

AES Convention 138 · Paper 9240 · May 2015

Abstract

Interaural time difference (ITD) is related with spatial position (distance and direction) of the sound source and head size. Assuming the sound source and the coordinate system are fixed, the position relationship between the sound source and head center will be influenced by the head offset relative to the coordinate origin, which may lead to the spatial distribution distortion of ITD in measuring head-related transfer functions (HRTFs). In this paper the variation of ITD caused by head offset is analyzed using the conventional Woodworth ITD model consisting of a spherical head and a point sound source. Results show that the forward (or backward) offsets of head result in small variation of ITDs, however, the spatial distribution distortion of ITDs introduced by the rightward (or leftward) offset of head is unacceptable.

Details

Published in
AES Convention 138
AES Convention
138
Paper number
9240
Publication date
May 6, 2015
Session subject
Spatial Audio
Affiliation
South China University of Technology, Guangzhou, Guangdong, China (See document for exact affiliation information.)
Type
Convention Paper