Method and systems for integrating sound attenuation into a filter bank

摘要

A filter bank is provided. The filter bank includes a housing (301) having a front face (310) and a back face (312). Air flows along an air flow path from the front face (310) to the back face (312). A filter layer (302) is held in the housing (301). The filter layer (302) is oriented between the front (310) and back (312) faces such that air flows through the filter layer (302) before discharging from the back face (312). An attenuation layer (304) is positioned within the housing (301) to attenuate sound as the sound propagates between the front (310) and back faces (312). The attenuation layer (304) is oriented to extend along the air flow direction.