Sound valve

A method and apparatus that delivers controlled air, sound and silence efficiently and invisibly to the user is revealed. A method of controlling air exchange rates in locale, cancelling fan and ventilation noise, and generating sound or silence from DC to 20 kHz using the apparatus and the micropho...

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Bibliographische Detailangaben
Hauptverfasser:	Evaldsson, Bo-Göran, Lampei, Jan, Pettersson, Joakim
Format:	Patent
Sprache:	eng ; swe
Schlagworte:	BLASTING DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY HEATING LIGHTING LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUBLIC ADDRESS SYSTEMS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS WEAPONS
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Beschreibung
Zusammenfassung:	A method and apparatus that delivers controlled air, sound and silence efficiently and invisibly to the user is revealed. A method of controlling air exchange rates in locale, cancelling fan and ventilation noise, and generating sound or silence from DC to 20 kHz using the apparatus and the microphone (s) of a mobile device is also revealed.The apparatus comprises existing or integrated ducts and fans, motirized air valves using acoustic membranes, hydraulic interconnects, air and spring suspensions, pressure sensors, wireless systems, and control logic.Intuitive presence, motion and gesture control of the ventilation, silencing, audio volume, audio center direction and channel separation is described.