Earphoning
Echo/noise canceling device for use with personal computers
Electroacoustic device for hearing needs including noise cancell
Electromagnetically-countered speaker systems and methods
Electronic attenuator
Electronic cancelling of acoustic traveling waves
Electronic compensation system for elimination or reduction of i
Electronic device having a blower with noise control
Electronic muffler
Electronic noise attenuation method and apparatus for use in eff
Electronic noise attenuation system
Electronic noise attenuation system
Energy absorption apparatus
Engine noise control apparatus
Environmentally robust noise attenuation system
Extended frequency range Helmholtz resonators
Fan noise canceller
Fan noise canceller
Fast adapting control system and method
Feedback acoustic energy dissipating device with compensator