SOUND PRODUCING SYSTEM

A sound producing system includes an electro-acoustic transducer having an electromagnetic motor for moving a diaphragm of the transducer back and forth to create acoustic waves. The diaphragm has a surface that includes one or more of a surface of a dust cap of the diaphragm, a surface of a cone of...

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Bibliographische Detailangaben
Hauptverfasser:	GRAFF, Allen T, BRUSS, John R, PARKER, Robert Preston
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS
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Beschreibung
Zusammenfassung:	A sound producing system includes an electro-acoustic transducer having an electromagnetic motor for moving a diaphragm of the transducer back and forth to create acoustic waves. The diaphragm has a surface that includes one or more of a surface of a dust cap of the diaphragm, a surface of a cone of the diaphragm, and a portion of a surface of a surround of the diaphragm. A solid gas impermeable cover faces the diaphragm surface and has a surface which faces the diaphragm surface. At least a portion of the cover surface has a contour which is substantially the same as a contour of the diaphragm surface. The system includes an asymmetric exit for the acoustic waves to leave a volume defined between the diaphragm surface and the cover surface.