Speaker system and method of controlling directivity thereof

Details Speaker system and method of controlling directivity thereof Speaker system and method of controlling directivity thereof

1992-02-04

1993-08-03

Isen, Forester W.

Electrical audio signal processing systems and devices

Having non-electrical feature

Loudspeakers driven in given phase relationship

381 97, 381182, H04R 102

Patent

active

052336646

ABSTRACT:
A speaker system including a common input terminal for receiving an audio signal to be acoustically radiated; several speaker units; several digital filters connected between the common input terminal and the speaker units, and a filter coefficient for each of the digital filters. The speaker units are arranged linearly, in a matrix form or in a honeycomb form.

REFERENCES:
patent: 4399328 (1983-08-01), Franssen
patent: 4472834 (1984-09-01), Yamamuro et al.
patent: 4845759 (1989-07-01), Danley
Wollherr; Horst Schrage Sache, In: Funkschau, H.2, 1985, S. 41-43.
Jordan, E. J.: Multiple-array Loudspeaker System. In: Wireless World, Mar. 1971, S. 132-134.
Vasilocov; E. A.: Titel Kyrillisch-Die Biologie der Richtfahigkeit der Strahlungsfelder durch kleine akusitsche Umformer In: Defektoskopia, 9.H.5, 1973, S. 76-80.
Beigel, "A Digital Phase Shifter' for Musical Applications, Using the Bell Labs" (Alles Fischer) Digital Filter Module, JAES, Sep. 1979, vol. 27, No. 9.

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