A Snore Extraction Method from Mixed Sound for a Mobile Snore Recorder

Authors:
Vivek Nigam;Roland Priemer
Affiliations:
Electrical and Computer Engineering Department, University of Illinois at Chicago, Chicago, USA 60607;Electrical and Computer Engineering Department, University of Illinois at Chicago, Chicago, USA 60607
Venue:
Journal of Medical Systems
Year:
2006

Citing 3
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Abstract

This paper presents a snore recorder that can separate snores from their delayed mixtures. This is useful to study the snore sounds of individuals when these sounds occur in a normal in-home sleeping environment, where two people are sleeping together and both produce sounds. Based on methods for blind source separation, we give a snore separator that solves the blind delayed source separation problem and provide a performance index to monitor its convergence. The separated snores can be analyzed to detect symptoms of sleep apnea prior to polysomnography or as a monitoring device after polysomnography has been performed. Experimental results show good performance of the snore separator.