Method for elimination of sound waves in loudspeaker box in room, involves providing electric signal of loudspeaker according to running time, so that membrane synchronously works with acoustic signal and delayed sound emerges from box

The method involves feeding a rear inverse sound of a closed loudspeaker box into a playback chamber and eliminating the inverse sound in the playback chamber. The inverse sound of a loudspeaker membrane of the loudspeaker box is delayed at a running time in a reflecting channel i.e. tube. The inver...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	KUFFER, ALOIS
Format:	Patent
Sprache:	eng ; 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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