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SETSCI - Volume 5(1) (2022)
ISAS2022 - 5th International Symposium on Innovative Approaches in Smart Technologies, Online, Turkey, May 28, 2022

A Portable Low-Cost Electronic Stethoscope Design with Software Tools
Gizem Dokgöz1, Fatma Susuz2, Engin Kılıç3, Funda Çiftci4, Kenan Gençol5*
1Department of Electrical and Electronics Engineering, Hitit University, Corum, Turkey
2Department of Electrical and Electronics Engineering, Hitit University, Corum, Turkey
3Department of Electrical and Electronics Engineering, Hitit University, Corum, Turkey
4Department of Electrical and Electronics Engineering, Hitit University, Corum, Turkey
5Department of Electrical and Electronics Engineering, Hitit University, Corum, Turkey
* Corresponding author: kenangencol@hitit.edu.tr
Published Date: 2022-06-01   |   Page (s): 75-78   |    249     8
" target="_blank">https://doi.org/10.36287/setsci.5.1.015

ABSTRACT We have designed a portable low-cost stethoscope with software tools. It is aimed to pre-diagnose heart diseases in a short time without exposing the patient to detailed examinations and additional procedures such as electro-cardiography (ECG) or angiography. It is important to develop such assistive systems, especially in order to reduce the burden of experienced physicians and to assist inexperienced physicians and thus saving time. For this purpose, first, the heart sound is converted into an electrical signal, and amplification and filtering in both hardware and software is implemented. The heart sound signal is obtained digitally and displayed on the monitor in segmented form. Physicians can classify the attributes of the cardiac cycles by examining the segmented S1 and S2 cardiac cycles, thereby establishing whether the heart sound is normal or abnormal.
KEYWORDS Electronic stethoscope, Auscultation, Heart sounds, Signal processing, Segmentation
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[5] Johnson, J., Hermann, D., Witter, M., Cornu, E., Brennan, R. ve Dufaux, A., “An Ultra-Low Power Subband-Based Electronic Stethoscope”,in International Conference on Acoustics, Speech, and Signal Processing, 14-19 May 2006, Toulouse, 1156-1159.

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[7] Classifying Heart Sounds Challenge: http://www.peterjbentley.com/heartchallenge/, Last retrieved: 19.05.2022

[8] https://www.maximintegrated.com/en/products/analog/audio/MAX44 66.html, Last retrieved: 19.05.2022.

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