NDLI: Improving sound spatialization by modifying head-related transfer functions to emulate protruding pinnae

Content Provider	IEEE Xplore Digital Library
Author	Gupta, N. Barreto, A. Ordonez, C.
Copyright Year	2002
Description	Author affiliation: Florida Int. Univ., Miami, FL, USA (Gupta, N.)
Abstract	Head-related transfer functions (HRTF) are widely used for the synthesis of binaural sound, which can produce in the listener the illusion of a sound that originates at a virtual location around him/her. The accuracy in the perception of these sounds, however, is compromised by the "cone of confusion" effect. Due to this effect, a source in the back hemisphere is perceived to be in the front hemisphere, and vice versa. This effect is particularly noticeable in the front (azimuth 0/spl deg/) and the back (azimuth 180/spl deg/). Preliminary observations suggested that the HRTF of individuals with particularly protruding ears show more accentuated spectral differences between symmetric locations. These HRTF were helpful in resolving the cone of confusion when used by subjects with average or small pinna protrusions. This paper describes the design of attenuation/amplification spectral profiles based on those seen in HRTF from protruding ears and how they are applied to modify the HRTF of several subjects. Listening tests showed that the HRTF so modified yielded enhanced front-back differentiation, with respect to the original HRTF of the test subjects.
Sponsorship	IEEE Region 3
Starting Page	446
Ending Page	450
File Size	379111
Page Count	5
File Format	PDF
ISBN	0780372522
DOI	10.1109/SECON.2002.995637
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-04-05
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Transfer functions Ear Prototypes Azimuth Torso Acoustic testing Acoustic reflection Signal generators Signal processing Position measurement
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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