Acoustic translation of quadraphonic signals for two- and four-

Details Acoustic translation of quadraphonic signals for two- and four- Acoustic translation of quadraphonic signals for two- and four-

1978-05-05

1979-06-26

Olms, Douglas W.

179 1GP, 179 1G, H04R 500

Patent

active

041593979

ABSTRACT:
Each of quadraphonic signals is applied to a respective one of a plurality of binaural localization networks to deliver a pair of binaurally correlated output signals to a respective one of a plurality of crosstalk cancellation networks where the input signals are modified so as to eliminate acoustic crosstalk which might be perceived by a listener if the non-modified signals were directly used to produce sound waves. The output signals from each crosstalk cancellation network are a pair of crosstalk-free signals which are combined in adders with signals from the other crosstalk cancellation networks to deliver a plurality of localized output signals to loudspeakers. The localization networks are so adjusted to make the localized output signals to appear to originate from anywhere in front of a listener.

REFERENCES:
patent: 3088997 (1963-05-01), Bauer
patent: 3236949 (1966-02-01), Atal et al.
patent: 3238304 (1966-03-01), Yaita et al.
patent: 3710023 (1973-01-01), Greuzard et al.
patent: 3892624 (1975-07-01), Shimada
patent: 3925615 (1975-12-01), Nakano
patent: 4118599 (1978-10-01), Iwahara et al.

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