DIY Electronic Stethoscope
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- čas přidán 28. 08. 2024
- In this video I will show you how to record the sound of your heart using a stethoscope and a microphone connected to it.
Author, director, camera, patient: Anatoly Zolotkov
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Microphone used in the video: Audio Technica Omnidirectional Condenser Lavalier Microphone ATR3350 (www.audio-tech....
Keywords: Recording heart sounds, microphone, low frequencies, stethoscope, recording device, headphones, piezoelectric buzzer or transducer, contact microphone, condenser microphone, electret microphone, chest piece, diaphragm, acoustic stethoscope, low frequency sounds, high frequency, beating heart, shutting heart valves, diagnostic purposes, auscultation. Healthy adults, S1 and S2 heart sounds, atrioventricular valves, mitral or bicuspid valve, tricuspid valve, semilunar valves, aortic and pulmonary valves. Hearing locations are labelled with M (Mitral), T (Tricuspid), A (Aortic), P (Pulmonic) and E (Erb’s point, the best for S2 auscultation). Stethoscope head, electronic stethoscope, waveform, recorded sound. Spectrogram, spectrum of frequencies vs. time. Amplitude is represented by the color of the image. Free Thinklabs Phonocardiography powered by Audacity software. TranslatorsCafe.com, technical English, Russian accent.
Your heart valves sounded good.
For those wondering what type of mic to use, I was able to pull this off with a lapel/clip-on mic (or a Lavalier mic if you wanna be fancy about it). They're fairly cheap and easy to find online. You can connect them to a traditional mic pack, but there are also some that can be used with your phone.
Thanks a lot, comments like yours are gold
Can you let us knkwake and model and how you did this?
I can only assume the three downvotes were from mouth-breathers disappointed by the lack of naked women, robots, and explosions.
That was very informative. I am interested in making recordings of my pets breathing and heartbeats as metrics of comparision as they age, so that I can detect problems that require medical care. Thank you Anatoly.
What microphone did you use?
Thank you!
can you record more heartbeat sound of your heart ? i'll really appreciate it^^!!
Thank you SO MUCH for this video, it really helped me a lot!
I've just managed to record my heartbeat with my new "DIY electronic stethoscope" (same mic, but I decided to use a pro stethoscope) and the final result is phenomenal!
Now I can finally use the heartbeat samples in my horror soundtracks XD
Hi Luca, Which microphone did you use? THANK YOU
@@mayafeba4 Audio Technica Pro ATR3350, awesome little mic!
I paid 2 dollars and 97 cents (with shipping). If you pay more for a pro version (for example, Littmann), you pay the same 3 dollars for the thing itself (which was invented 200 years ago) and another 100-300 dollars for its name.
I have created a DIY electronic stethoscope using the chest piece and connecting it to condenser mic over the tube. While I am able to hear all outside sound , I am not able to hear any body sound at all (heart/lungs) . The same chest piece when connected to tube of stethoscope works well . I am using audacity software for recording. I would appreciate any suggestions for resolving this . Thanks
Maybe the microphone is not sensitive to low frequencies. Or maybe the connecting tube to the microphone needs to be a different length, shorter or longer.
Hello Sir. Thanks for the informative video. Please provide details of where i can buy the same microphone you have used. I am from india and would appreciate if you could provide me the link to purchase it online.
which mic has been used here
Drop em out let me see dem... B XD fantastic video thank you so much 👍
Can we record the patient heartbeat remotely?if yes, please explain how to achieve
I would very much like to purchase a pre made (safe) stetoscope from you that i can use to record my heart live, in real time. How can i reach you?
Thank you so much for your explanation.....we can know after analysis of PCG signal the CHD children????!!
Анатолий, подскажите что за микрофон вы использовали? Сходу не получилось найти такой же маленький конденсаторный микрофон.
Здравствуйте, Глеб!
Я записывал, в основном на петличный конденсаторный микрофон (в просторечии петличка) Audio-Technica Omnidirectional ATR3350 Lavalier Microphone, который у меня используется для записи этих видеосюжетов. Он недорогой - 30 долларов:
www.ebay.com/itm/Audio-Technica-ATR-3350i-Omnidirectional-Condenser-Lavalier-Microphone-/331692799582?hash=item4d3a6e765e:g:czkAAOSwYHxWL43~.
Но можно с успехом использовать и дешевый компьютерный электретный микрофон за 25 центов. Вроде такого:
www.ebay.com/itm/5-pcs-6-5mm-52D-Sensitivity-Capacitive-Electret-Microphone-NEW-/142082279151?hash=item2114c386ef:g:HM0AAOSw0UdXrEyC.
Хотя, конечно, качество будет похуже, так как микрофон должен хорошо записывать низкие частоты.
Частотная характеристика микрофона ATR3350 50 - 18,000 Гц. Но это не означает, что он "не слышит" частоты ниже 50 Гц. Он их слышет, но не так хорошо, как частоты выше 50 Гц. Звук можно обработать в любой программе обработки звука, подняв низкие частоты.
Анатолий
Which microphone is used for this purpose..?
Microphone used in the video: Audio Technica Omnidirectional Condenser Lavalier Microphone ATR3350 (www.audio-technica.com/en-ca/atr3350).
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