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Acoustic Environment as an Indicator of Social and Physical Context

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Abstract

Acoustic environments provide many valuable cues for context-aware computing applications. From the acoustic environment we can infer the types of activity, communication modes and other actors involved in the activity. Environmental or background noise can be classified with a high degree of accuracy using recordings from microphones commonly found in PDAs and other consumer devices. We describe an acoustic environment recognition system incorporating an adaptive learning mechanism and its use in a noise tracker. We show how this information is exploited in a mobile context framework. To illustrate our approach we describe a context-aware multimodal weather forecasting service, which accepts spoken or written queries and presents forecast information in several forms, including email, voice and sign language

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Original languageEnglish
Pages (from-to)241-254
Number of pages14
JournalPersonal and Ubiquitous Computing
Volume10
Issue number4
DOIs
Publication statusPublished - 2005
Peer-reviewedYes

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