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Paper Abstract and Keywords
Presentation 2005-05-20 10:30
Distance of the auditory event with outside-the-head locatedness generated by means of earphones and subject's HRIRs
Kimitoshi Fukudome, Kazuki Takeya (Kyushu Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) When we listen through earphones to binaural sounds that are convolved with our own HRIRs measured in an anechoic room, we can externalize them outside of our heads but cannot satisfy the result of distance hearing. In everyday life we hear distances by listening to sounds that contain a direct sound and reflections. In the present study, we examine how to control distance hearing with using reflections. We choose a room where we can localize sounds clearly, and measure our own binaural room HRIRs. Further we prepare virtual room HRIRs that are based on anechoic room HRIRs for one of authors and the image method theory. Trancating binaural room HRIRs from the rear with a rectangular window, we prepare several HRIR set for each DOA.
Convolving a male speech with these HRIRs, we make distance hearing experiments for HRIR-owners and other subjects.
As the results, (1) more distant outside-the-head locatedness needs such reflections that increase their energies and reduce the degree of binaural cross correlations, and (2) the trancation of HRIRs that there remain a direct sound and no reflections gives the similar localization results as in the case of using anechoic room HRIRs.
Keyword (in Japanese) (See Japanese page) 
(in English) localization of sound / outside-the-head locatedness / distance hearing / earphones reproduction / HRIR / direct sound / reflections /  
Reference Info. IEICE Tech. Rep., vol. 105, no. 54, EA2005-14, pp. 7-12, May 2005.
Paper # EA2005-14 
Date of Issue 2005-05-13 (EA, SIP) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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Conference Information
Committee EA SIP  
Conference Date 2005-05-19 - 2005-05-20 
Place (in Japanese) (See Japanese page) 
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Paper Information
Registration To EA 
Conference Code 2005-05-EA-SIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Distance of the auditory event with outside-the-head locatedness generated by means of earphones and subject's HRIRs 
Sub Title (in English)  
Keyword(1) localization of sound  
Keyword(2) outside-the-head locatedness  
Keyword(3) distance hearing  
Keyword(4) earphones reproduction  
Keyword(5) HRIR  
Keyword(6) direct sound  
Keyword(7) reflections  
1st Author's Name Kimitoshi Fukudome  
1st Author's Affiliation Kyushu Univeristy (Kyushu Univ.)
2nd Author's Name Kazuki Takeya  
2nd Author's Affiliation Kyushu Univeristy (Kyushu Univ.)
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Date Time 2005-05-20 10:30:00 
Presentation Time 30 
Registration for EA 
Paper # IEICE-EA2005-14,IEICE-SIP2005-19 
Volume (vol) IEICE-105 
Number (no) no.54(EA), no.56(SIP) 
Page pp.7-12 
#Pages IEICE-6 
Date of Issue IEICE-EA-2005-05-13,IEICE-SIP-2005-05-13 

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