ヘッドフォンを用いた3次元音空間の生成に関する研究

URI http://harp.lib.hiroshima-u.ac.jp/kure-nct/metadata/9526
File
Title
ヘッドフォンを用いた3次元音空間の生成に関する研究
Title Alternative
The Study of Three-Dimensional Sound Image Localization using a Headphone
Author
氏名 田和瀬 裕之
ヨミ タワセ ヒロユキ
別名 Tawase Hiroyuki
氏名 梶田 尚
ヨミ カジタ ヒサシ
別名 Kajita Hisashi
氏名 野村 博昭
ヨミ ノムラ ヒロアキ
別名 Nomura Hiroaki
Subject
Sound image localization
Head-related transfer function
Inverse filter
Non-minimum phase component
Matched filter
音像定位
頭部伝達関数
逆フィルタ
非最小位相成分
マッチドフィルタ
Abstract

Multimedia technology requires network audio technology as well as image processing technology to render acoustic events. Acoustic events include three-dimensional sound image localization. This usually requires three-dimensional directional binaural impulse responses, which are equivalent to head-related transfer functions (HRTFs). This paper describes the sound image projection system, which has inverse filtering for HRTFs in an anechoic space. Inverse filtering for HRTFs, however, is formidable since HRTFs can often be of the non-minimum phase (all-pass). For resolving this problem, we realized the inverse filter of the non-minimum phase component (all-pass component) by using a matched filter with time-delay. From results of computer simulation, we can understand that the inverse filter of HRTFs can be realized by both minimum-phase inverse filter and matched filtering. Moreover, we can success three-dimensional sound image localization using a headphone.

Journal Title
呉工業高等専門学校研究報告
Issue
73
Spage
1
Epage
4
Published Date
2011
Publisher
呉工業高等専門学校
ISSN
0286-4037
Language
jpn
NIIType
Departmental Bulletin Paper
Text Version
出版社版
Old URI
Set
kure-nct