A Robust multichannel lung sound recording device

Elmar Messner, Martin Hagmüller, Paul Swatek, Franz Pernkopf

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem Konferenzband

Abstract

This paper presents a robust multichannel lung sound recording device (LSRD) for automatic lung sound classification. Compared to common approaches, we improved the usability and the robustness against body sounds and ambient noise. We developed a novel lung sound transducer (LST) and an appropriate attachment method realized as a foam pad. For analogue prefiltering, preamplification, and digitization of the lung sound signal, we use a composition of low-cost standard audio recording equipment. Furthermore, we developed a suitable recording software. In our experiments, we show the robustness of our LSRD against ambient noise, and we demonstrate the achieved signal quality. The LST's microphone features a signal-to-noise ratio of SNR = 80 dB. Therefore, we obtain a bandwidth of up to a frequency of f 2500 Hz for vesicular lung sound recordings. Compared to the attachment of the LST with self-adhesive tape, the foam pad achieves an attenuation of ambient noise of up to 50 dB in the relevant frequency range. The result of this work is a multichannel recording device, which enables a fast gathering of valuable lung sounds in noisy clinical environments without impeding the daily routines.

Originalspracheenglisch
TitelBIODEVICES 2016 - 9th International Conference on Biomedical Electronics and Devices, Proceedings; Part of 9th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2016
Herausgeber (Verlag)SciTePress
Seiten34-39
Seitenumfang6
ISBN (elektronisch)9789897581700
PublikationsstatusVeröffentlicht - 2016
Veranstaltung9th International Conference on Biomedical Electronics and Devices, BIODEVICES 2016 - Part of 9th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2016 - Rome, Italien
Dauer: 21 Feb 201623 Feb 2016

Konferenz

Konferenz9th International Conference on Biomedical Electronics and Devices, BIODEVICES 2016 - Part of 9th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2016
LandItalien
OrtRome
Zeitraum21/02/1623/02/16

ASJC Scopus subject areas

  • !!Electrical and Electronic Engineering
  • !!Biomedical Engineering

Fields of Expertise

  • Human- & Biotechnology

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    Messner, E., Hagmüller, M., Swatek, P., & Pernkopf, F. (2016). A Robust multichannel lung sound recording device. in BIODEVICES 2016 - 9th International Conference on Biomedical Electronics and Devices, Proceedings; Part of 9th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2016 (S. 34-39). SciTePress.