Building acoustics is the oldest application of noise control engineering. A recent extension of this technology is the "hardening" or insulation of commercial and residential structures against exterior noise; especially that which originates from adjacent roadways and low-flying aircraft. Campanella Associates provides architects, planners and engineers with modern and effective design procedures to ensure the acoustical success of their projects. These include noise isolation ( insulation or "sound proofing"), open office design, sound masking (ASTM E1041) as well as vibration isolation. Retrofitting noise insulation is now a refined art that is needed where where new uses are generated for existing structures, e.g. old factory buildings being converted into multi-family residences. Through well defined acoustical principles such as barrier and absorption technology, we can adapt any space to virtually any purpose. Recent innovations include cost-effective party wall, window and floating floor design for multi-family structures. We field test these installations per ASTM E 336 (a field parallel to ASTM E90, "STC") and E 1007 (a field parallel to E492, "IIC"). Traditional air system construction often requires expensive in-line silencers. Our supply air plenum silencer design, fitted onto air handling units, can reduce room noise as much as by 16 dBA with no other system change! Campanella
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