An Intensimetric Method To Localize Secondary Sources
Price
Free (open access)
Transaction
Volume
69
Pages
10
Published
2003
Size
401.90 kb
Paper DOI
10.2495/AC030141
Copyright
WIT Press
Author(s)
M. Gullo, A. La Pica, A. Leto & G. RodonĂ²
Abstract
An intensimetric method to localize secondary sources M. Gullo, A. La Pica, A. Leto & G. Rodoni, D. R. E.AM Dipartimento Ricerche Energetiche e AMbientali Facoltir di Ingegneria, Universitir degli Studi di Palerrno, Italy Abstract Research is presented to fmd out the amount and direction of the early reflections of a primary sound source in a room. Two rooms, very different in dimensions, were taken into account: the smallest one is about 100 m3 and the largest one 1100 m3. The measurement system consists of a PC equipped with a sound-board connected to the signals coming &om the two microphones of an intensity probe at the input and to a loudspeaker at the output. A sweep signal was used for the excitation of the environment. Signal processing software was developed using LabVIEW by National Instruments. The results of the two measurement sessions are presented as amplitude-direction diagrams and amplitude-direction-time diagrams. 1 Introduction Early reflections produced in a listening room
Keywords