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Are ants building giant robots now?

Drew Starr spotted this thing in Christopher Columbus Park, wonders what it is.

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Microphone shaped like a human head for research purposes?

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These are used to make highly accurate 3-D stereo sound recordings for listening to over headphones.

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I was surprised by how well these cheap headphones I've currently got hooked up to my desktop comp worked, and not-as-surprised as I wished I was at how much my perception of hi frequency has dropped off. Getting old bites.

Well designed and fun to use - This page went into my bookmarks folder for future reference - thanks again Dave!

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whoa, I nearly jumped out of my chair

I too am pleasantly surprised at the quality of my <$10 earbuds. Thanks Dave!

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With the clues given above, I googled binaural recording microphone and found this $8,000 "NEUMANN KU100 BINAURAL DUMMY HEAD". Looks pretty similar, and has some more information on what it does. https://vintageking.com/neumann-ku100-binaural-dummy-head?gclid=CjwKEAjw...

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The link that I provided brings up a listing for what looks like the same product (It has the same logo on the front). Not sure how much it costs, though.

Here's a binaural recording from the early '70s that was made using similar dummy head technology.

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