Pinard stethoscope
prusaprinters
<p>This is a simple digital stethoscope.</p> <p>My girlfriend is pregnant, naturally I wanted to listen to my baby's heart beats. I designed a Pinard stethoscope that fits snugly with this <a href="https://www.amazon.de/gp/product/B071171DBP/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1&tag=tv-auto-20">cheap usb microphone</a>.</p> <p>I have not managed to hear my baby's heart beats yet (it is too early in the pregnancy), but it appears to work well, because I can hear my own heart beats quite well, especially after some post processing in Audacity.</p>
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