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LINEAR PREDICTION ACOUSTICAL MODELLING OF FREE FIELD COUGH SOUND
A. Van Hirtum*, K. Janssens*, K. Demuynck**,
D. Van Compernolle**, D. Berckmans*
* Department of Agro-Engineering and Economics, K.U.Leuven,
Kasteelpark Arenb erg 30,3001 Ieuven, Belgium,
daniel.berckmans@agr.kuleuven.ac.be
** Department Electrical Engineering, K.U.Leuven,
Kasteelpark Arenb erg 10,3001 Ieuven, Belgium
In this paper the performance and assumptions of linear prediction acoustical modelling are assessed on the free field cough sound. Four distinct free field cough classes originating from animal and human species in different health conditions are considered. For each cough class the vocal tract formants are estimated from the linear prediction parameters.
Keywords: Signal processing, Spectral analysis, Linear prediction, Autoregressive modelling, Signal-to-noise ratio, Biomedical system
Session slot T-Mo-M20: Modelling and Control in Biomedical Systems/Area code 4c : Modelling and Control of Biomedical Systems
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