3 ms·
i dream of cars with an array of speakers around the wheels to cancel the road noise.
by twtw 8y ago
i dream of cars with an array of speakers around the wheels to cancel the road noise.
- wumms 8y agoAssuming road noise is nowadays mostly low frequency noise - BOSE's car suspension [0] might do the trick: "It does for motion what noise-cancelling does for noise" [1]. [0] https://youtu.be/3KPYIaks1UY https://youtu.be/3KPYIaks1UY [1] https://www.clearmotion.com https://www.clearmotion.com
- mikhailfranco 8y agoThe multi-channel case of using many anti-noise generators is much more complex than a simple single-channel. I once proved a nice theorem about the multi-channel case, using Lagrangian multipliers and the theory of Gershgorin disks, which are what you get if someone upsets a Tower of Hanoi game all over your complex plane: https://en.wikipedia.org/wiki/Gershgorin_circle_theorem https://en.wikipedia.org/wiki/Gershgorin_circle_theorem