Presentation	2001/3/23 Influence of Pinna and Ear Canal of the Dummy Head Kiyoshi SUGIYAMA,
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Abstract(in Japanese)	(See Japanese page)
Abstract(in English)	In order to discuss the head related transfer function(HRTF) of the dummy head(HATS), an influence of and external ear canals of the dumy head are investigated experimentally. The influence of pinna is measured by the difference of HRTF between with pinna and without pinna. The influence of external ear canals is measured by the difference of HRTF between without pinna and closed ear canal. As a result, pinna collects a sound over 1 kHz, for example, in the case of direct incidence, 10 dB up in the range of 6 kHz. Frequency characteristics of ear canal are shown -5～-10dB down in the low frequency range, peak in the 2～4kHz, and decreasing over 4kHz. And measured values of closed ear canal compare with calculated values of 2 spheres model.
Keyword(in Japanese)	(See Japanese page)
Keyword(in English)	HRTF / disk / diffraction coefficient / radiation impedance / oblate spheroidal wave function
Paper #	EA2000-119
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Conference Information
Committee	EA
Conference Date	2001/3/23(1days)
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Paper Information
Registration To	Engineering Acoustics (EA)
Language	JPN
Title (in Japanese)	(See Japanese page)
Sub Title (in Japanese)	(See Japanese page)
Title (in English)	Influence of Pinna and Ear Canal of the Dummy Head
Sub Title (in English)
Keyword(1)	HRTF
Keyword(2)	disk
Keyword(3)	diffraction coefficient
Keyword(4)	radiation impedance
Keyword(5)	oblate spheroidal wave function
1st Author's Name	Kiyoshi SUGIYAMA
1st Author's Affiliation	Tokyo Institute of Polytechnics()
Date	2001/3/23
Paper #	EA2000-119
Volume (vol)	vol.100
Number (no)	724
Page	pp.pp.-
#Pages	8
Date of Issue