Fig.1 Distribution of Amplitude of P1, N1, and N2 in the median plane
Topics
- Spectral Cues for Vertical Sound Localization(2005)
Kazuhiro Iida, Motokuni Itoh, Atsue
Itagaki, and Masayuki Morimoto, gMedian plane localization using@parametric
model of the head-related transfer function based on spectral cues,h Applied
Acoustics, in Printing.
Abstract: To examine a simulation method for vertical sound localization, and to clarify which peaks and notches in head-related transfer functions (HRTFs) play a role as spectral cues, localization tests in the median plane were carried out using a parametric HRTF model, which is recomposed only of extracted spectral peaks and notches. The results show that the parametric HRTF recomposed using the first and second notches (N1 and N2) and the first peak (P1) provides almost the same localization accuracy as the measured HRTFs. Observations of the spectral peaks and notches indicate that N1 and N2 change remarkably as the source elevation changes, whereas P1 does not depend on the source elevation. In conclusion, N1 and N2 can be regarded as spectral cues, and the hearing system could utilize P1 as the reference information to analyze N1 and N2.
Fig.1 Distribution of Amplitude of P1, N1, and N2 in the median plane
Fig.2 Responses to the measured HRTF and Parametric HRTFs
for seven target elevations in the median plane.
This article is avaiable to see on the web of "Article in Press"of Applied Acoustics.
Copyright (c)
2007, Kazuhiro IIDA