[LAU] New 'acoustic metamaterial' cancels sound

[Peter]

Dear David,

Am 07.03.19 um 20:49 schrieb David W. Jones:
> https://www.sciencedaily.com/releases/2019/03/190307103109.htm
> 
> Might make managing sound a bit easier in studios?

I took a short look at the cited publication, Phys. Rev. B99, 024302.

While the device is surely interesting, it won't help you in studios.
You can put the ring on a tube to block a small frequency window.

The device is based on on Fano-resonance and is there relatively narrow.
In the publication the centre frequency of the near perfect damping
is ~ 460Hz, and a width of ~20 Hz (estimated from the figure).

So this might be interesting to filter noise from an air-conditioning,
which may make managing sound a bit easier during a hot summer,
otherwise it won't help much.

Best regards,
Peter