Acoustically tunable sound absorption articles and methods...
Acousto-optic filter having means for damping acoustic...
Active acoustic attenuation and spectral shaping system
Active acoustic attenuation system for higher order mode...
Active acoustic attenuation system with differential filtering
Active acoustic attenuation system with overall modeling
Active acoustic attenuation system with power limiting
Active acoustic attenuator
Active acoustic control system matching model reference
Active acoustic transmission loss box
Active acoustical controlled enclosure
Active adaptive selective control system
Active attenuation of noise in a closed structure
Active attenuation system with on-line modeling of speaker,...
Active cancellation of noise or vibrations
Active control of aircraft engine inlet noise using compact...
Active control system for noise shaping
Active countersound system with special arrangement of the...
Active gas turbine (jet) engine noise suppression
Active high transmission loss panel