ACTIVE CONTROL OF SOUND AND VIBRATION

According to an example embodiment, an apparatus for active cancellation of sound and vibration is provided, the apparatus comprising sound and vibration generation means for jointly producing vibration and sound under control of a driving signal provided as input thereto, said means arranged inside...

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Bibliographische Detailangaben
Hauptverfasser:	IMMONEN, Tommi, LINJAMA, Jukka
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PHYSICS PUBLIC ADDRESS SYSTEMS SOUND-PRODUCING DEVICES
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Beschreibung
Zusammenfassung:	According to an example embodiment, an apparatus for active cancellation of sound and vibration is provided, the apparatus comprising sound and vibration generation means for jointly producing vibration and sound under control of a driving signal provided as input thereto, said means arranged inside a padding to generate mechanical vibration that is perceivable as a vibration and sound on at least one outer surface of the padding and to radiate a sound through said at least one outer surface of the padding, feedback means for providing feedback information that is indicative of acoustic energy of sound and vibration inside the padding, and driving means for generating the driving signal in dependence of said feedback information so as to reduce energy of ambient sound and vibration induced inside the padding due to one or more external sources of sound and vibration.