Characterization of acoustic head-related transfer functions for nearby sources
Name
48984835-MIT.pdf
Description
Full printable version
Size
14.43 MB
Format
Adobe PDF
Checksum (MD5)
5fa3a1852da5b207f1bca0c8683d39ed
Author(s)
Brown, Tara J. (Tara Janet), 1978-
Advisor(s)
Nathaniel Durlach.
Date Issued
2001
Publisher
Massachusetts Institute of Technology
Abstract
Head Related Transfer Functions (HRTF) for nearby sources were characterized for human subjects and the Knowles Electronics Manikin for Acoustic Research (KEMAR). The HRTFs were measured in several reverberant room conditions for sound source positions at 0, 45, and 90 degrees in azimuth and 15cm and 1m from the center of the head using maximum-length sequences. The effects of reverberation on interaural time difference, interaural level difference, magnitude response, and spectral content were examined. Results were consistent with acoustic theory. Reverberation was found to decrease ILD, cause comb-filtering, and to distort and add frequency-to-frequency variations to acoustic cues. These affects were most pronounced in room positions with the most reverberant energy.
Description
Thesis (M.Eng. and S.B.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, February 2001.
Includes bibliographical references (leaf 60).
Subjects
Electrical Engineering and Computer Science.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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