Audio system for elevator

An audio system for an elevator includes two or more speaker cabinets arranged inside a suspended ceiling fixed to a ceiling board of a car of the elevator, an input device to which sound content radiated to an inside of the car from each of the two or more speaker cabinets are input, and a sound fi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Fujiwara, Susumu, Aikawa, Masami, Taruishi, Keigo
Format:	Patent
Sprache:	eng
Schlagworte:	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELEVATORS ESCALATORS OR MOVING WALKWAYS HAULING HOISTING LIFTING LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PERFORMING OPERATIONS PUBLIC ADDRESS SYSTEMS STEREOPHONIC SYSTEMS TRANSPORTING
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Beschreibung
Zusammenfassung:	An audio system for an elevator includes two or more speaker cabinets arranged inside a suspended ceiling fixed to a ceiling board of a car of the elevator, an input device to which sound content radiated to an inside of the car from each of the two or more speaker cabinets are input, and a sound field control device configured to conduct phase control and reverberation time control for the sound content and thereby cause a sound wave based on the sound content to be radiated from the speaker cabinet to the inside of the car. Each of the speaker cabinets includes a casing arranged inside the suspended ceiling, and a speaker unit arranged inside the casing and having a radiation surface that radiates the sound wave.