SINGLE CHANNEL SOURCE SEPARATION FOR CONVOLUTIVE MIXTURESWITH APPLICATION TO RESPIRATORY SOUNDS

A. K. Kattepur, F. Jin, F. Sattar

2010

Abstract

In this paper, we attempt to extend single channel source separation techniques to the separation of respiratory sound (RS) and heart sounds (HS). This single channel recording is analyzed and shown to be a convolutive mixture model. After analyzing the reasons for failure of commonly used blind source separation algorithms, we evaluate the efficacy of non-negative matrix factorization (NMF) techniques for this application. Analysis on simulated single channel convolutive mixtures at various sensor positions has been performed. It indicates an average signal to interference ratio (SIR) improvement of greater than 10 dB for the optimal sensor locations. The corresponding range of received power has been also studied for reliable separation of RS and HS. Finally, the proposed model and the NMF separation performance are demostrated to work well on real RS recordings.

Paper Citation

in Harvard Style

K. Kattepur A., Jin F. and Sattar F. (2010). SINGLE CHANNEL SOURCE SEPARATION FOR CONVOLUTIVE MIXTURESWITH APPLICATION TO RESPIRATORY SOUNDS . In Proceedings of the Third International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2010) ISBN 978-989-674-018-4, pages 220-224. DOI: 10.5220/0002712402200224

in Bibtex Style

@conference{biosignals10,
author={A. K. Kattepur and F. Jin and F. Sattar},
title={SINGLE CHANNEL SOURCE SEPARATION FOR CONVOLUTIVE MIXTURESWITH APPLICATION TO RESPIRATORY SOUNDS},
booktitle={Proceedings of the Third International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2010)},
year={2010},
pages={220-224},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002712402200224},
isbn={978-989-674-018-4},
}

in EndNote Style

TY - CONF
JO - Proceedings of the Third International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2010)
TI - SINGLE CHANNEL SOURCE SEPARATION FOR CONVOLUTIVE MIXTURESWITH APPLICATION TO RESPIRATORY SOUNDS
SN - 978-989-674-018-4
AU - K. Kattepur A.
AU - Jin F.
AU - Sattar F.
PY - 2010
SP - 220
EP - 224
DO - 10.5220/0002712402200224