Method for the diffusion of a sound with a given density

Details Method for the diffusion of a sound with a given density Method for the diffusion of a sound with a given density

1996-06-28

1998-08-11

Kuntz, Curtis

Electrical audio signal processing systems and devices

Having non-electrical feature

Loudspeakers driven in given phase relationship

381 90, 381 97, H04R 102

Patent

active

057938768

ABSTRACT:
To obtain a directivity pattern representing the directivity of an original or virtual sound source, directivity patterns of different sources are composed algebraically. To take account of the progress of the directivity patterns of sources that differ with the frequency, the signals applied to these sources are filtered so that the composite directivity function represents the expected directivity pattern throughout the spectrum. The coefficients of the filters are determined by a method of optimization in modulus and in phase.

REFERENCES:
patent: 4673057 (1987-06-01), Glassco
patent: 4845759 (1989-07-01), Taylor
patent: 5233664 (1993-08-01), Yanagawa et al.
Japan Abstract No. 03986097 & JP 04-0351197; Matsushita, Dec. 1992.
Japan Abstract NO. 03264298 & JP 02-023798; Toa, Sep. 1990.

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