Anybody know how these work ? Helmholtz resonators?
SilenceAir looks like a transparent brick, and uses "passive resonators" to allow fresh air into buildings while leaving 85% of the noise behind. The arrays of resonators inside the bricks are tuned to block sounds in the range of 500Hz to 2kHz.
SilenceAir looks like a transparent brick, and uses "passive resonators" to allow fresh air into buildings while leaving 85% of the noise behind. The arrays of resonators inside the bricks are tuned to block sounds in the range of 500Hz to 2kHz.
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