Acoustic attenuator and method of attenuation of noise

摘要

A sound reducer or sound attenuator for use in cabinets and the like with the sound reducer comprising a plurality of small bead like acoustic resonators loosely held in position between two members with each of the acoustic resonators having an acoustical resonance cavity therein for generating a standing wave with the standing wave producing vibration displacement of the acoustic resonators thereby dissipating acoustical sound energy through mechanical work.