Forget using your ears...

... they aren't big enough.


http://www.cbsnews.com/st...utes/main6045121.shtml


About half way through there is a explanation of how recordings are being made of intra sonic energy that we can only sense by viewing spectral analysis or using varispeed to bring the energy up a few octaves.

They also use time alignment analysis to locate the source of the sound.


Interesting?



best regards,
mike