Attenuation of sound waves
Audio reproduction system
Communication device with active equalization and method...
Communications systems
Correlated active attenuation system with error and correction s
Damping for directional sound cancellation
Device for noise attenuation of weaving machine
Device for reducing noise
Device for reducing tire/road surface noise
Digital electro-acoustic transducer
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
Earphoning
Electroacoustic device for hearing needs including noise cancell
Electronic attenuator