The development, update and use of sound maps for the monitoring of environmental interest areas is addressed in this work. Sound maps constitute a valuable tool for environmental monitoring. They rely on networks of microphones distributed over the area of interest to record and process signals, extract and characterize sound events and finally form the map; time constraints are imposed by the need for timely information representation. A stepwise methodology is proposed and a series of practical considerations are discussed to the end of obtaining a multi-layer sound map that is periodically updated and visualizes the sound content of a “scene”. Alternative time-frequency based features are investigated as to their efficiency within the framework of a hierarchical classification structure.

Authors: Rangoussi, Maria; Potirakis, Stelios; Paraskevas, Ioannis; Tatlas, Nicolas-Alexander
Affiliations: Technological Education Institute of Piraeus, Electronics Department, Aigaleo-Athens, Greece; University of Patras, Electrical and Computer Engineering Department, Patras, Greece(See document for exact affiliation information.)
AES Convention: 128 (May 2010) Paper Number: 8113
Publication Date: May 1, 2010
Subject: Audio Content Management—Audio Information Retrieval

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