3 ms·
Really cool stuff > Used this way, the thin-film loudspeaker could provide active noise cancellation in clamorous environments, such as an airplane cockpit, by
by natly 4y ago
Really cool stuff
> Used this way, the thin-film loudspeaker could provide active noise cancellation in clamorous environments, such as an airplane cockpit, by generating sound of the same amplitude but opposite phase; the two sounds cancel each other out.
Not mentioned here is that to achieve this you need to track heads in real time (i.e. with a camera) - the phases need to align at just the right spot - which might be worth the creepiness tradeoff or not idk.
- olivierduval 4y agoActually, it looks more like isolating the whole cockpit (or room) with the "paper" to the noise is cancelled before entering the cockpit. You could imagine a recording studio with 2 sheet of this: - sheet against the wall to cancel the outside sounds coming INTO the recording room - sheet against the previous one (but turn oppositerly) to cancel the sound from the recording room to go outside the room The contact sheet between both would stay fixed
- Applejinx 4y agoNeither of those things would work because the objectionable noise is deep into the bass, which this stuff can't do with the excursion limits it's working with.
- twayt 4y agoI wonder what kind of discordant noise it might produce if the heads are misaligned.