Well, the device for humans can't have a frequency higher than around 22khz but I imagine it is around 2okhz as loudness and frequency are not linearly related.
I have actually been more interested in cancelling out the noise emitted from booming car stereos. I think this will make me rich!
Slashdot Mirror
Well, the device for humans can't have a frequency higher than around 22khz but I imagine it is around 2okhz as loudness and frequency are not linearly related. I have actually been more interested in cancelling out the noise emitted from booming car stereos. I think this will make me rich!