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The sound of silence

By: Language: English Series: Building ; 262(7995) 20 June 1997, 42-43(2)Publication details: 1997Subject(s): Summary: Examines how the idea of anti-noise, inverted sound waves that cancel out noise, can be applied to air conditioning systems to reduce their noise levels.

Examines how the idea of anti-noise, inverted sound waves that cancel out noise, can be applied to air conditioning systems to reduce their noise levels.