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Convention Paper

Acoustic Surveillance of Hazardous Situations Using Nonnegative Matrix Factorization and Hidden Markov Model

Authors: Jeon, Kwang Myung; Lee, Dong Yun; Kim, Hong Kook; Lee, Myung J.

AES Convention 137 · Paper 9203 · October 2014

Abstract

In this paper an acoustic surveillance method is proposed for accurately detecting hazardous situations under noisy conditions. In order to improve detection accuracy, the proposed method first tries to separate each atypical event from the input noisy audio signal. Next, maximum likelihood classification using multiple hidden Markov models (HMMs) is carried out to decide whether or not an atypical event occurs. Performance evaluation shows that the proposed method achieves higher detection accuracy under various signal-to-noise ratio (SNR) conditions than a conventional HMM-based method.

Details

Published in
AES Convention 137
AES Convention
137
Paper number
9203
Publication date
October 6, 2014
Session subject
Applications in Audio
Affiliation
Gwangju Institute of Science and Technology (GIST), Gwangju, Korea; City University of New York, New York, NY, USA (See document for exact affiliation information.)
Type
Convention Paper