| 10 | 三次元音響実験装置による正中面前方の音源定位能とその体位依存性解析 | 二口聡,高野博史,橋本憲明,中村清実 | 筆頭著者 | To investigate the performance of sound source localization in the front-middle plane at arbitrary body positional angles, a mobile three-D acoustic stimulator was developed. The angle of the body position is adjustable in parallel with the sound sources that are arranged around the subjects. In the present study, 4 identical speakers were arranged in the front-middle plane of the subject. The speakers were separated by 9 degrees in the vertical plane. Using a white noise tone (0.3-s duration), a sound source discrimination task was conducted in five body positions at 90-, 67.5-, 45-, 22.5- and 0-degree angles. As a result, the average of the correct response rate was higher in the 90- and 0-degree body positions than that in the 67.5-, 45- and 22.5-degree body positions. The localization of the source position tended to be distorted (skewed) to the middle (eye) level in all body positions. The vertical distortion to the middle (eye) level became large in the 67.5-, 45- and 22.5-degree body positions compared to that in the 90- and 0-degree body positions. These results suggest that sound source localization in the front-middle plane is affected not only by the body position but also by the vertical sound position. | The Society of Instrument and Control Engineers | 2005年 | 計測自動制御学会論文集 | 41 | 7 | 596 | 602 | 日本語 | 有り | 無し | 研究論文（学術雑誌） | 10.9746/sicetr1965.41.596 | 0453-4654 | | https://jlc.jst.go.jp/DN/JALC/00255094557?from=CiNii |