Abstract
A sound absorbing panel comprising a standoff layer disposed between a back plate and a screen. The standoff layer supports the screen at a standoff distance from the back plate. The standoff distance is substantially equal to ¼ the wavelength of a sound to be absorbed. An alternate embodiment sound absorbing panel includes a felt layer between the standoff layer and the screen. Another alternate embodiment comprises an apertured membrane supported by standoffs at a standoff distance from the back plate. The standoffs could be any appropriate standoff shape including I standoffs, Z standoffs, and angled standoffs. In one alternate embodiment the apertured membrane is a screen. In another alternate embodiment the apertured membrane is a perforated plate.
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