Electrical audio signal processing systems and devices – Binaural and stereophonic – Broadcast or multiplex stereo
Patent
1993-11-23
1996-01-30
Brinich, Stephen
Electrical audio signal processing systems and devices
Binaural and stereophonic
Broadcast or multiplex stereo
381 47, H04N 578
Patent
active
054886651
ABSTRACT:
A five-channel perceptual audio compression system which encodes five matrixed channels switches among a fourteen encoding modes each utilizing a respective different set of matrixed channels. Six of the modes are for encoding the three front channels and eight of the modes are for encoding the two back channels. A number of the modes have as at least one of their respective matrixed channels a matrixed channel which is a function of a) one of the input channels or a sum or difference of two of them, and b) a predicted value of a).
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patent: 5377051 (1994-12-01), Lane
J. D. Johnston, "Transform Coding of Audio Signals Using Perceptual Noise Criteria," IEEE Journal on Selected Areas in Communications, vol. 6, No. 2, 314-324 (Feb. 1988).
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International Patent Application (PCT), WO 88/01811, Mar. 10, 1988. (no translation).
J. Johnston, "Estimation of Perceptual Entropy Using Noise Making Criteria" ICASSP 1988.
J. D. Johnston, "Perceptual Transform Coding of Wideband Stereo Signals," ICASSP (1989).
E. F. Schroeder, J. J. Platt, "MSC-Stereo Audio Coding with CD-Quality and 256 KBIT/SEC," IEEE Trans. on Consumer Electronics, vol. CE-33, No. 4, Nov. 1987.
G. Theile, G. Stolle, Institut fur Rundfunktechnik Munich, Germany, "MUSICAM-Surround: A Universal Multi-Channel Coding System Compatible with ISO 11172-3," AES, 93rd Convention, San Francisco, Calif., Oct. 1-4, 1992.
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Johnston James D.
Sinha Deepen
AT&T Corp.
Brinich Stephen
Dinella Donald P.
Slusky Ronald D.
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