3 ms·
just my lay person thought here. But if you could cancel the noise/signal perfectly and everywhere wouldn't that sorta violate energy conservation? The sound
by lawlessone 1y ago
just my lay person thought here.
But if you could cancel the noise/signal perfectly and everywhere wouldn't that sorta violate energy conservation?
The sound energy has to go somewhere right?
- luke-stanley 1y agoPerfectly? Surely that is not reasonable?
- IAmBroom 1y agoEven imperfectly, the problem remains - and is answered by the "the energy of the cancellation source counterbalances the noise energy."
- card_zero 1y agoThat's an interesting question: what to do with the energy, ideally? Maybe convert it to very low frequency, so it only annoys elephants.
- loa_in_ 1y agoYou are providing the energy by emitting the counter signal in the first place.