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http://dx.doi.org/10.5050/KSNVN.2009.19.12.1260

Comparison of Measurement Methods for Head-related Transfer Function(HRTF)  

Ahn, Tae-Soo (동의대학교 대학원 기계공학과)
Lee, Doo-Ho (동의대학교 기계공학과)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.19, no.12, 2009 , pp. 1260-1268 More about this Journal
Abstract
Three methods(the stepped sine method, the statistical method(random excitation method) and the maximum-length sequence(MLS) method) for head-related transfer functions(HRTFs) are experimentally compared in view point of accuracy and efficiency. First, the stepped sine method has high signal-to-noise ratio, but low efficiency. Second, the statistical method is fast measurement speed, but weak to noise than the other methods. Finally, the MLS method shows both good efficiency and high signal-to-noise ratio, but it needs additional software or equipment such as MLS signal generator. For comparison of measurement accuracy, HRTFs of KEMAR dummy are measured for various azimuths and elevations. Error norms for magnitude and phase of HRTFs are defined and calculated for the measured HRTFs. The calculated error norms show that the methods give similar results in magnitude and phase except a little phase difference in the MLS method.
Keywords
Head-related Transfer Function(HRTF); MLS(maximum length sequence) Method; Random Excitation Method; Stepped Sine Method;
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Times Cited By KSCI : 1  (Citation Analysis)
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