Journal of Medical Systems

, Volume 30, Issue 2, pp 91–99 | Cite as

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

  • Vivek Nigam
  • Roland Priemer
Research Paper

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.

Keywords

Obstructive sleep apnea Snoring Blind source separation 

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Copyright information

© Springer Science + Business Media, Inc. 2006

Authors and Affiliations

  • Vivek Nigam
    • 1
  • Roland Priemer
    • 1
  1. 1.Electrical and Computer Engineering DepartmentUniversity of Illinois at ChicagoChicagoUSA

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