Electrical audio signal processing systems and devices – Binaural and stereophonic – Pseudo stereophonic
Patent
1997-10-08
2000-09-19
Isen, Forester W.
Electrical audio signal processing systems and devices
Binaural and stereophonic
Pseudo stereophonic
381 17, H04R 500
Patent
active
061223824
ABSTRACT:
A multiplexing-resultant surround signal is decoded into multiple-channel signals including at least a first left-channel signal, a first right-channel signal, and a rear-channel signal. Samples of the rear-channel signal are thinned out to generate a thinning-resultant rear-channel signal. The thinning-resultant rear-channel signal is subjected to a given process to convert the thinning-resultant rear-channel signal into a left surround-related signal and a right surround-related signal. The given process is designed to localize sound images at rear positions with respect to a listener when a rear loudspeaker is absent and only front loudspeakers are used. A surround-effect-added left-channel signal is generated on the basis of the first left-channel signal and the left surround-related signal. A surround-effect-added right-channel signal is generated on the basis of the first right-channel signal and the right surround-related signal.
REFERENCES:
patent: 3746792 (1973-07-01), Scheiber
patent: 4159397 (1979-06-01), Iwahara et al.
patent: 4188504 (1980-02-01), Kasuga et al.
patent: 4349698 (1982-09-01), Iwahara
patent: 5123050 (1992-06-01), Serikawa et al.
patent: 5173944 (1992-12-01), Begualt
patent: 5216718 (1993-06-01), Fukuda
patent: 5261005 (1993-11-01), Masayuki
patent: 5404406 (1995-04-01), Fuchigami et al.
patent: 5524053 (1996-06-01), Iwamatsu
patent: 5546465 (1996-08-01), Kim
patent: 5579396 (1996-11-01), Iida et al.
patent: 5604809 (1997-02-01), Tsubonuma et al.
patent: 5657391 (1997-08-01), Jyosako
patent: 5680464 (1997-10-01), Iwamatsu
patent: 5727067 (1998-03-01), Iwamatsu
patent: 5872851 (1999-02-01), Petroff
AC-3 "Flexible Perceptual Coding for Audio Transmission and Storage" by Craig C. Todd et al; Presented at the 96th Convention 1994 Feb. 26-Mar. 1, Amsterdam An Audio Engineering Society Preprint.
Iida Toshiyuki
Mouri Tomohiro
Isen Forester W.
Mei Xu
Victor Company of Japan Ltd.
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