講演抄録/キーワード |
講演名 |
2010-08-10 09:45
耳介形状と正中面上の音像定位の個人差に関する研究 ○舩橋武雄・渡邉祐子・柴田滝也・浜田晴夫(東京電機大) EA2010-50 |
抄録 |
(和) |
本稿では,耳介形状と音像定位の個人差について検討した.我々は実音源を用いて10名の被験者による正中面上の音像定位試験を実施した.定位試験の結果から被験者間の定位能力の個人差を明らかにし,2名の被験者はほとんど音源と音像が一致していない.個人差の程度は回答角度と提示音源角度の間で自乗平均平方根(RMS)を用いて算出された.定位試験に参加した10名を含む72名の耳介形状の計測を実施した.Martin式により計測された10項目に対し主成分分析を適用した.第1主成分は耳介の‘縦軸と突出’因子とみなされた.結果として,第1主成分とRMS値の間で統計的に有意な相関(r = -0.697, P < 0.05)があり,正中面上の音像定位は耳介形状の縦軸及び突出と関連性があることが示された. |
(英) |
This study examines the relationship between individual differences of sound-localization and anthropometric parameters of the pinna shape. We conducted a localization test for ten subjects by using sound sources on the median plane. The result shows there are inter-subject differences for the localization ability. The degree of response error was quantified by calculation of root-mean-square (RMS) between a presented source angle and a responded one. Ten pinna shape parameters were measured from seventy-two subjects and ten of them were the same subjects as used for the localization test. Principal component analysis was applied for the left pinna shape parameters by using Martin’s method. The first principal component was considered to be a ear length and prominent. This component was compared with the value of response error by the ten subjects. There was a negative significant correlation (r = -0.69, P < 0.05) between the value of response error and the first principal component score. Therefore results of the analysis suggest the possibility that individual differences of localization ability were primarily related to the first principal component of the pinna shape. |
キーワード |
(和) |
音像定位 / 耳介形状 / 主成分分析 / 正中面 / 個人差 / / / |
(英) |
Sound-Localization / Pinna Shape / Principal Component Analysis / Median Plane / Individual Differences / / / |
文献情報 |
信学技報, vol. 110, no. 171, EA2010-50, pp. 43-46, 2010年8月. |
資料番号 |
EA2010-50 |
発行日 |
2010-08-02 (EA) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
PDFダウンロード |
EA2010-50 |