Electronic stethoscope prototype with adaptive noise cancellation

Electronic stethoscope is developed to improve the limitations and add functions to a conventional stethoscope. In electronic stethoscope, sound is transformed into electrical signal which offers various benefits including signal quality improvement, signal record and signal transfer via wireless. Electronic stethoscope in the market is expensive. Therefore, this research aims to design and develop a low-cost electronic stethoscope prototype that can filter frequency, reduce external noise and make real-time digital signal processing.

[1]  F. Belloni,et al.  Towards a Computer-Aided Diagnosis by means of Phonocardiogram Signals , 2007, 2007 IEEE International Symposium on Industrial Electronics.

[2]  B. Farhang-Boroujeny,et al.  Adaptive Filters: Theory and Applications , 1999 .

[3]  Yang Tang,et al.  The Design of Electronic Heart Sound Stethoscope Based on Bluetooth , 2010, 2010 4th International Conference on Bioinformatics and Biomedical Engineering.

[4]  Gillian Davis,et al.  Noise Reduction in Speech Applications , 2002 .

[5]  J Genest,et al.  Clinical comparison of acoustic and electronic stethoscopes and design of a new electronic stethoscope. , 1998, The American journal of cardiology.

[6]  S. Haykin,et al.  Adaptive Filter Theory , 1986 .

[7]  Yi Luo Portable Bluetooth Visual Electrical Stethoscope research , 2008, 2008 11th IEEE International Conference on Communication Technology.

[8]  P. Varady,et al.  Wavelet-based adaptive denoising of phonocardiographic records , 2001, 2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society.

[9]  Ying-Wen Bai,et al.  The embedded digital stethoscope uses the adaptive noise cancellation filter and the type I Chebyshev IIR bandpass filter to reduce the noise of the heart sound , 2005, Proceedings of 7th International Workshop on Enterprise networking and Computing in Healthcare Industry, 2005. HEALTHCOM 2005..