3 ms·
Super-Microphone picks out Single Voice in a Crowded Stadium
- hugh3 16y agoNeat. The sound-wave equivalent of a Mills Cross style radiotelescope, which can be electronically "aimed" at any point in the sky by adjusting the signal delay from each individual reciever. http://en.wikipedia.org/wiki/Mills_Cross_Telescope http://en.wikipedia.org/wiki/Mills_Cross_Telescope
- jwcacces 16y agoor a phased array radar
- harshpotatoes 16y agoYes, it looks like an interferometer. The microphone array looks very symmetric, and usually with radio interferometer's you set up the antennas to not be symmetric, in order to prevent ringing (ie areas on the sky where you get very good signal, and other area's where you get very poor signal. With a circular aperture, you'd get a response function resembling a Bessel function). So I wonder if they could get better results with a less symmetric microphone array. Hmm... Or maybe the array is large enough that the entire court is inside the central spot, meaning all the ringing is outside the court. I'll have to think about that.
- spicyj 16y agoI've always wondered how much of this would be possible with just a standard stereo recording. Does anyone have an idea?
- lurchpop 16y agoAwesome possibilities for entertainment, but terrifying possibilities for surveillance in public spaces.