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  • Research Article
  • Open Access

Exploiting Temporal Feature Integration for Generalized Sound Recognition

EURASIP Journal on Advances in Signal Processing20092009:807162

  • Received: 13 July 2009
  • Accepted: 18 November 2009
  • Published:


This paper presents a methodology that incorporates temporal feature integration for automated generalized sound recognition. Such a system can be of great use to scene analysis and understanding based on the acoustic modality. The performance of three feature sets based on Mel filterbank, MPEG-7 audio protocol, and wavelet decomposition is assessed. Furthermore we explore the application of temporal integration using the following three different strategies: (a) short-term statistics, (b) spectral moments, and (c) autoregressive models. The experimental setup is thoroughly explained and based on the concurrent usage of professional sound effects collections. In this way we try to form a representative picture of the characteristics of ten sound classes. During the first phase of our implementation, the process of audio classification is achieved through statistical models (HMMs) while a fusion scheme that exploits the models constructed by various feature sets provided the highest average recognition rate. The proposed system not only uses diverse groups of sound parameters but also employs the advantages of temporal feature integration.


  • Recognition Rate
  • Autoregressive Model
  • Wavelet Decomposition
  • Temporal Integration
  • Fusion Scheme

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Authors’ Affiliations

Electrical and Computer Engineering Department, University of Patras, 26500 Rio-Patras, Greece
Department of Music Technology and Acoustics, Technological Educational Institute of Crete, Daskalaki-Perivolia, Crete, 74100, Greece


© Stavros Ntalampiras et al. 2009

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.