Acoustic environment classification

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The acoustic environment provides a rich source of information on the types of activity, communication modes, and people involved in many situations. It can be accurately classified using recordings from microphones commonly found in PDAs and other consumer devices. We describe a prototype HMM-based acoustic environment classifier incorporating an adaptive learning mechanism and a hierarchical classification model. Experimental results show that we can accurately classify a wide variety of everyday environments. We also show good results classifying single sounds, although classification accuracy is influenced by the granularity of the classification.


Original languageEnglish
Pages (from-to)1-22
Number of pages22
JournalACM Transactions on Speech and Language Processing
Issue number2
Publication statusPublished - Jul 2006

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