This paper presents a comparison of computer-simulated versus acoustically measured, front-hemisphere head related transfer functions (HRTFs) of two human subjects. Simulations were carried out with a 3D finite difference time domain (FDTD) method, using magnetic resonance imaging (MRI) data of each subject's head. A spectral distortion measure was used to quantify the similarity between pairs of HRTFs. Despite various causes of mismatch including a different head-to-source distance, the simulation results agreed considerably with the acoustic measurements, particularly in the major peaks and notches of the front ipsilateral HRTFs. Averaged over 133 source locations and both ears, mean spectral distortions for the two subjects were 4.7 dB and 3.8 dB respectively.

Authors: Mokhtari, Parham; Takemoto, Hironori; Nishimura, Ryouichi; Kato, Hiroaki
Affiliation: NICT/ATR
AES Convention: 123 (October 2007) Paper Number: 7240
Publication Date: October 1, 2007
Subject: Acoustic Modeling

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