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Headphoneless headphones


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That reminds me of a theory that Bob Carver (I think it was him) was espousing years ago....something to the effect of raising audio signals into much higher frequencies, 20k Hz apart, and having the "subtracted" signal be sent via a smaller speaker.  It would beam similar to that demo above....and in theory you could get 20-20k Hz response.

I may not be remembering it correctly, but I thought it was interesting at the time....


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