H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 1/66 (2006.01) G11B 20/00 (2006.01) G11B 20/18 (2006.01) H04N 7/06 (2006.01) H04H 5/00 (2006.01) H04N 7/58 (2006.01)
Patent
CA 2148447
Disclosed is a process for transmitting and/or storing digital signals of multiple channels. This process is suited, in particular, for transmitting the five channels of 3/2 stereophony as well as for transmitting two stereo channels and three additional commentary channels. In this manner, by way of illustration, television programms with multi-language audio signals can be transmitted. This process is distinguished that by reduction of the to-be-transmitted data, only a bit rate of 384 kbit/s is required for transmission. The reduction of the data is achieved by the K input channels being imaged in segments onto the N<=K virtual spectral data channels, by the spectral data channels being quantized, coded and transmitted taking into consideration the principles of psychoacoustics and by K output channels being reproduced from the transmitted bit stream with the aid of a also transmitted list from the N<=K spectral data channels.
Brandenburg Karl-Heinz
Eberlein Ernst
Grill Bernhard
Herre Jurgen
Seitzer Dieter
Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung
Kirby Eades Gale Baker
LandOfFree
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