Acoustical attenuating device
Acoustical board
Acoustical material for use in association with noise generating
Acoustical panel
Acoustical panel assembly
Acoustical reflectors
Acoustical seal
Acoustical virtual environment
Acoustical wall covering assembly pleated and secured in...
Adjustable muffler for model aircraft type engines
Air intake silencer
Air pulse noise damper for a pneumatic tool
Anechoic chamber
Anechoic room for the entire auditory range
Apparatus for dismissing or decreasing sound's energy
Arrangement for damping and absorption of sound in rooms
Arrangement for damping sound with resonators
Arrangement for muffling the exhaust of a pneumatic rock drillin
Cell-box-type noise barrier having large magnitude of transmissi
Collapsible modular sound reproduction system