Mearsurement of spatial information in sound fields by closely located four point microphone method

スポンサーリンク

概要

• 論文の詳細を見る

• When we estimate a sound field in a room, it is important to grasp the spatial information, especially of the early reflection periods. In this paper we'll discuss a way to grasp the spatial information of sound fields from impulse responses measured at closely located four points, the origin and three points of the same distance(3〜5 cm) from the origin on the rectangular cordinate axes. From these four impulse responses the cordinates and powers of virtual image sources are calcuated by correlation technique or intensity technique. Concert halls, opera theaters and many other sound field are measured by this technique. The distributions of virtual image sources and directivity patterns of some concert halls are shown.

• 社団法人日本音響学会の論文

著者

• Itow Takeshi

  School Of Science And Engineering Waseda University

• Yamasaki Yoshio

  School Of Science And Engineering Waseda University

関連論文

• Acoustic survey of auditoriums in Europe and Japan
• Mearsurement of spatial information in sound fields by closely located four point microphone method

スポンサーリンク