Customization of head‐related transfer functions using principal components analysis in the time domain

Pinna responses were separated from HRIRs (head‐related impulse responses) of 45 subjects in the CIPIC HRTF (head‐related transfer function) database and modeled as linear combinations of five basic temporal shapes (basis functions) by PCA (principal components analysis) accounting for more than 90% of the variance in the original pinna responses per each selected elevation angle in the median plane. By adjusting the weight of each basis function computed for a specific height to replace the pinna response in the KEMAR HRIR at the same height with the resulting pinna response and listening to the filtered stimuli over headphones, four subjects were able to create a set of median HRIRs that outperformed the KEMAR HRIRs in producing elevation effects in the median plane. Since the monoaural spectral features due to the pinna are strongly dependent on elevation instead of azimuth, similar elevation effects could also be generated at different azimuthal positions simply by inserting the customized median pinna responses into the KEMAR HRIRs at other azimuths and varying the ITD (interaural time difference) according to the direction as well as the size of the subject’s own head.
Publisher
Acoustical Soc Amer Amer Inst Physics
Issue Date
2006
Language
ENG
Citation

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, v.120, no.5, pp.3284 - 3284

ISSN
0001-4966
URI
http://hdl.handle.net/10203/5655
Appears in Collection
ME-Journal Papers(저널논문)
Files in This Item
ASA_and_ASJ_Shin.pdf(44.38 kB)Download
  • Hit : 416
  • Download : 196
  • Cited 0 times in thomson ci

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0