[Objective characterization of cough sounds].
Objectification of the amplitude of the cough sound is important in determining its physiological or pathological nature. To achieve this aim an assembly for computer analysis in the time and frequency region was tested in an attempt to substitute the special equipment used at present by less expensive and readily available computer technique. At the same time the possibilities were assessed for using some statistical characteristics as diagnostic parameters in determining pathological changes of the cough sound. The physiological sound of cough was found to yield a hyperbola connecting the peaks of the individual bars of the frequency histogram which in pathological cough was represented by a line descending from left to right. Thus the two types of cough can be objectively distinguished.
Katedry patologickej fyziológie, farmakológie a oddelenia jazykov LFUK, Martine.
M
M
Vrabec
J
J
Korpás
D003371:Cough / Q000503:physiopathology*; D006801:Humans; D012815:Signal Processing, Computer-Assisted; D013018:Sound Spectrography
Objektivizácia charakteru zvuku kasl'a.