An Intensimetric Method To Localize Secondary Sources
Author(s)
M. Gullo, A. La Pica, A. Leto & G. Rodonò
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
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