4 ms·
It's very difficult to accurately locate the direction of a high pitched chirp sound. The frequency makes a ton of difference here.
by adamweld 9y ago
It's very difficult to accurately locate the direction of a high pitched chirp sound. The frequency makes a ton of difference here.
- kazinator 9y agoThis is only true of a periodic sound. This is because when the wavelength is smaller than the distance between the ears, there is aliasing in the phase information (ambiguity). However, the overall group delay is perceptible at the onset and cessation of the tone. That doesn't give you much time to latch on to the direction. At high frequencies, though, level differences are useful. You know which ear is facing that chirp and which isn't.
- will_hughes 9y agoI've found that particularly high pitched sounds can bounce of hard/flat surfaces very well.
- AstralStorm 9y agoIt is possible to find it with a bit of hardware like a microphone. Very easily by taking multiple level measurement and some multilateration. It gets hard when there is more than one. The problem with identifying it by ear is that you get already some 20-30 cm precision at best unless you've trained in echolocation like some blind people. For such a small device it could well be a whole room.
- ketralnis 9y agoOk. We'll get you to clear any further pranks so you can tell us what's funny before we go and do anything rash such as trying to have some fun. Shut it all down guys, kazinator will take over from here.
- RealityCzech 9y agoThis is, as they say, weapons-grade autism.
- AstralStorm 9y agoVery useful in fact to improve on the prank by putting a small array of chirpers and vary the location. :P
- kazinator 9y agoA few decoys would improve the prank. They think they found it but then the chirp comes back, and it's not coming from the thing that they found.