Acoustic filter apparatus for an electronic device
Active control source cancellation and active control...
Active muffler
Active noise attenuation system
Active noise cancelling muffler
Active noise conditioning system
Active noise control apparatus
Active noise control system
Active noise control using phased-array active resonators
Active noise controller and controlling method
Active sound attenuation device to be arranged inside a...
Air intake noise reduction apparatus for automotive vehicle
Automatic sound controlling method and apparatus for improving a