Controlled acoustic waveguide for soundproofing
Correlated active attenuation system with error and correction s
Cylinder responsive vibratory noise control apparatus
Damping for directional sound cancellation
Device and method for active noise cancellation in an...
Device for active sound control in a space
Device for noise attenuation of weaving machine
Device for reducing noise
Device for reducing tire/road surface noise
Device for use in an audio signal processing system
Digital electro-acoustic transducer
Digital feed-forward active noise control system
Digital filter modeling for active noise cancellation
Dual bandpass secondary source
Ducted axial fan
Dynamically configurable ANR filter block topology
Dynamically configurable ANR signal processing topology
Ear defenders employing active noise control
Ear terminal
Earphone unit and a terminal device