While closed doors do a decent job of muffling the noise outside a room, cracks between a door and its casing or threshold offer just enough space for some sound to filter in. Homeowners looking ...

World’s First THX®-Certified Soundproof Door Joins THX-Certified QuietRock CEDIA EXPO 2008 September 02, 2008 10:04 AM Eastern Daylight Time ...

Dual steel doors insulate Axiom’s soundproof testing room where loudspeaker drivers are tested at power levels up to 1200 watts, which produce loudness levels as high as 135 dB SPL. Replace ...

Door closing sounds are an important element of the craftsmanship image of a vehicle. This paper examines the relationship between closure sound quality and door system design. The perception of door ...