Audio system operable in directional and non-directional modes

An audio system includes a speaker unit having an opening in its front surface supporting a speaker and a diffuser with a reflecting surface detachably attached to the speaker unit and positioned opposite to the speaker and in front of the opening such that sound waves from the speaker are diffused...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HIROSE, ISAMU
Format:	Patent
Sprache:	eng
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:	An audio system includes a speaker unit having an opening in its front surface supporting a speaker and a diffuser with a reflecting surface detachably attached to the speaker unit and positioned opposite to the speaker and in front of the opening such that sound waves from the speaker are diffused by the reflecting surface of the diffuser to propagate radially. A multi-channel amplifier for driving the speaker includes a compensating circuit for correcting the output level and frequency characteristic of the system when the diffuser is attached.