Active noise cancellation in an ear plug.
Buck
K
K
French-German Research Institute, Saint-Louis, France.
Franke
R
R
D000162:Acoustics / Q000295:instrumentation*; D004430:Ear Protective Devices; D004581:Electronics / Q000295:instrumentation; D004867:Equipment Design; D008904:Miniaturization; D009622:Noise