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Stethoscope Attachment for iPhone

by jeffthompson, published

Stethoscope Attachment for iPhone by jeffthompson Dec 15, 2011

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6825Views 949Downloads

Summary

NOTE: this Thing is designed for printing on a MakerBot (accomodating for shrinkage, overhang, etc). For a more up-to-date, non-MakerBot version, see:
http://www.thingiverse.com/thing:149028

A friction-fit cap for the bottom of the iPhone 4/5 that allows a stethoscope to be attached and recorded using the built-in microphone.

As the sound passes through the rubber stethoscope tubing, it is funneled directly to the mic at the bottom of the phone.

A quick test recording can be heard here:
http://soundcloud.com/jeffthompson/3d-printed-iphone-stethoscope

Instructions

Designed for the shrinkage of a MakerBot, this piece is printed in two pieces. Once finished, the two halves should be welded with plastic cement.

Prints well at 40% infill and 2 shells.

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Hi all, thanks for the kind words!

@MtDon: Some apps will let you listen through headphones and/or do signal processing. Can't recommend any, since I usually use the built-in Voice Recorder app for quick field recordings and use better equipment for other stuff.

@cyrozap: Thanks for the info! I guessed there might be only one, b
ut to be honest it was easier to make the whole thing symmetrical.

@Gav: I did and should have linked to it - the link is now above in the description.

I don't have an iPhone or any smart phone, so not sure of their capabilities.

Can you listen through the iPhone while it is recording?

Can an app be written (or are there already apps) to filter and/or otherwise modify the the signal to improve the sound?

What about apps to visualize the sound?

There's only one mic on the bottom; the other hole is the speaker. If you're looking at the bottom of the phone with the screen facing up, the hole on the left is the mic and the hole on the right is the speaker. Cool design, though!

Very cool project, Jeff!

Can you post a sample of a recording you made?

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