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Title: Considering the influence of artificial environmental noise to study cough time-frequency features
Authors: Van Hirtum, A ×
Berckmans, Daniel #
Issue Date: Sep-2003
Publisher: Academic press ltd elsevier science ltd
Series Title: Journal of sound and vibration vol:266 issue:3 pages:667-675
Abstract: In general the study of the cough mechanism and sound in both animal and human is performed by eliciting coughing in a reproducible way by nebulization of an irritating substance. Due to ventilation the controlled evaporation-protocol causes artificial noises from a mechanical origin. The resulting environmental low-frequency noises complicate cough time-frequency features. In order to optimize the study of the cough-sound the research described in this paper attempts on the one hand to characterize and model the environmental noises and on the other hand to evaluate the influence of the noise on the time-frequency representation for the intended cough sounds by comparing different de-noising approaches. Free field acoustic sound is continuously registered during 30 min citric acid cough-challenges on individual Belgian Landrace piglets and during respiratory infection experiments, with a duration of about 10 days, where room-ventilation was present. (C) 2003 Elsevier Ltd. All rights reserved.
URI: 
ISSN: 0022-460X
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Division M3-BIORES: Measure, Model & Manage Bioresponses (-)
× corresponding author
# (joint) last author

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