ZHAO Yueying SHENG Shengwo 　 ZHAO Songling

(Institute of Acoustics, Tongji University  Shanghai 200092)

Received Apr.22, 2007

Revised Jun.26, 2008

Abstract A new system of sound intensity measurement for impulse field in the room was proposed. This measurement system consists of a repeatable inspiriting sound source and a microphone fixed on a slowly rotating platform, which is equivalent to a circle microphone array composed of many perfectly matched microphones. The test principle was presented and typical application was described. Based upon this system the sound intensity measurement for impulse field in the room was realized. Therefore, not only time but also spatial information of room impulse response can be obtained.

PACS numbers: 43.55, 43.58