Author/Authors :
Rashvand، Ensiyeh نويسنده Researcher of Dental and Medical Sciences, Almas Teb Caspian Company, Biomedical Technology Incubator, Qazvin University of Medical Sciences, Qazvin, Iran , , Javadi، Hamidreza نويسنده Associate Professor, Cardiology Department, Bou Ali Sina Educational and Medical Center, Qazvin University of Medical Sciences, Qazvin, Iran , , Jafari، Mostafa M. نويسنده B.Sc in ICT, Almas Teb Caspian Company, Biomedical Technology Incubator, Qazvin University of Medical Sciences, Qazvin, Iran , , Hajiali، Farid نويسنده Medical Student, Faculty of Medicine, Qazvin University of Medical Sciences, Qazvin, Iran ,
Abstract :
The present paper was formulated in order to determine sound passing status from various channels and present
a novel method sound transfer considering a few qualitative and quantitative attributes of sound as well as
software analysis through wavelet transform. The present paper didnʹt make use of an independent sound of
ECG-type as a reference. Furthermore, unlike previously presented algorithms where heart signal was adopted
as a benchmark for healthfulness of the patient, the present work considered pressure difference around heart
valves causing high-frequency characteristics in the formed signal. Stethoscope tip was steadily used in all
specimens while variables such as presence or lack of tube as well as sound transfer channel to wired and
wireless processing system were considered. The tube had a considerable role in sound intensity and frequency
resulting in higher auditory quality. The results obtained from the present study can be very efficient in
designing new generations of medical stethoscopes.
