摘要:
An attenuator for attenuating acoustic waves, the attenuator comprising: a first body defining a cavity therein and an elongate open aperture extending across a substantial portion of the first body, the first body being configured to attenuate acoustic waves over a resonant frequency band.
摘要:
An attenuator for attenuating acoustic waves, the attenuator comprising: a first body defining a cavity therein and an elongate open aperture extending across a substantial portion of the first body, the first body being configured to attenuate acoustic waves over a resonant frequency band.