Toolkit for lung sound analysis.
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Auscultation↗
Biomedical subjects
K Kallio
Publications and source records attributed to K Kallio.
Original waveform of lung sound crackles: a case study of the effect of high-pass filtration.
In lung sound research, low-frequency noise usually disturbs the sound signal being recorded. Some researchers therefore use high-pass filtration before the final analysis. In this study, the effect of digital and analog high-pass filtration on the morphology of the lung sound crackles is evaluated. The original nonprefiltered crackle waveform is presented, and the effect of the high-pass filtration on the crackle waveform characteristics is elucidated in one patient with silicoasbestosis.
Acoustics↗