Paper Info
Title
Interpolation of head-related transfer functions by spatial linear prediction
Abstract
Head-related transfer functions (HRTFs) are essential for creating a virtual sound source when sound waves are transmitted through headphones. The measurement of HRTFs is a complicated and time-consuming task. Therefore, the interpolation of HRTFs is crucial for virtual auditory display systems in which both listeners and sound objects are likely to move in a virtual auditory space. In this study, HRTFs are measured with a high spatial resolution in order to develop an effective interpolation method. An analysis of HRTFs indicates that the functions exhibit periodicity in amplitude along the azimuthal angle. The optimum filter coefficients required to interpolate HRTFs from several functions measured along multiple azimuthal directions are derived. Computer simulations indicate that in comparison to conventional methods, the proposed method yields less estimation error in the interpolation of HRTFs. Listening tests indicate that the proposed method can provide better perception of virtual sound.
Year
DOI
Venue
2009
10.1109/ICASSP.2009.4959980
ICASSP
Keywords
Field
DocType
spatial linear prediction,functions exhibit periodicity,conventional method,virtual auditory display system,sound object,effective interpolation method,sound wave,head-related transfer function,virtual sound,virtual sound source,virtual auditory space,estimation theory,azimuthal angle,transfer functions,spatial resolution,data mining,interpolation,acoustic waves,probability density function,computer simulation,head related transfer function
Head-related transfer function,Computer science,Interpolation,Azimuth,Artificial intelligence,Auditory display,Headphones,Computer vision,Pattern recognition,Linear prediction,Transfer function,Acoustics,Acoustic wave
Conference
ISSN
Citations 
PageRank 
1520-6149
3
0.55
References 
Authors
2
3
Name
Order
Citations
PageRank
R. Nishimura112318.60
Hiroaki Kato23718.25
Naomi Inoue313215.77