design n develop electronic stethoscope

[maya_106]

can someone help me on how to design electronic stethoscope???
the stethoscope need to have high pass filter and low pass filter....n how to analyse and show the data?????? the heart beat

 

[audioguru2]

can someone help me on how to design electronic stethoscope???
the stethoscope need to have high pass filter and low pass filter....n how to analyse and show the data?????? the heart beat

There is an extremely simple electronic stethoscope in our projects section:
http://www.electronics-lab.com/projects/science/003/index.html
It is used in 3rd-world countries that don't have modern devices.
I tried it and heard my heart beats.
It has a modification to increase the cutoff frequency of its lowpass filter to hear respiratory sounds and mechanics can hear car engine noises.

In medical school you will be taught what sounds normal and what sounds abnormal.