Calibration of measured head-related transfer function database

Calibration of measured head-related transfer function database

Some causes and those effects on measurement error of head-related transfer functions (HRTFs) were analyzed. Among different causes of error on HRTF measurement, change of exact location of a listener and corresponding position change of eartips are the most important. The measurement error caused b...

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Hauptverfasser: Ju, Yongwon, Park, Youngjin, Park, Youn-sik, Lee, Seokpil
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Sprache:eng
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Azimuth
Calibration
Ear
Head-Related Transfer Function(HRTF)
Interpolation
Position measurement
Transfer functions
Virtual Auditory Display(VAD)
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Park, Youngjin
Park, Youn-sik
Lee, Seokpil
description Some causes and those effects on measurement error of head-related transfer functions (HRTFs) were analyzed. Among different causes of error on HRTF measurement, change of exact location of a listener and corresponding position change of eartips are the most important. The measurement error caused by change of position of a listener and eartips makes notable discontinuities of HRTF in space-frequency domain. For reducing discontinuity of measured HRTF, a method of using moving average and bilinear interpolation was proposed. By introducing a proposed method, detailed spectra which consist of notches and peaks are remained but smoothness of variation of HRTF with respect to change of polar angle is compensated. After applying a proposed calibration method to HRTF with discontinuities, resultant of spectra is well-matched to those of exactly measured HRTF, and the matching-improvement is about 4dB in terms of spectral distortion.
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subjects Azimuth
Calibration
Ear
Head-Related Transfer Function(HRTF)
Interpolation
Position measurement
Transfer functions
Virtual Auditory Display(VAD)
title Calibration of measured head-related transfer function database
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