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s20051 Spatial Frequency Response Surfaces (SFRS's): An Alternative Visualization and Interpolation Technique for Head-Related Transfer Functions (HRTF's)Corey I. Cheng, Gregory H. WakefieldDepartment of Electrical Engineering and Computer Science Ann Arbor, Michigan, U.S.A.
This paper introduces Spatial Frequency Response Surfaces (SFRS's),
an
alternative, spatial-domain visualization tool for head-related transfer
functions (HRTF's). Qualitative analysis of SFRS's is easier than direct
comparison of HRTF magnitude responses, and reveals many cross-subject
similarities in HRTF data corresponding to well-known HRTF-related
psychophysical phenomena. We present an SFRS-based HRTF interpolation
algorithm, along with results of a psychophysical experiment comparing
the
perceptual quality of interpolated and non-interpolated HRTF's.
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Last modified: 12.03.1999 aes16@acoustics.hut.fi