Process for the transmission and/or storage of digital signals of several channels

Abstract
The description refers to a process for the transmission and/or storage of digital signals of several channels. The process is especially suitable for the transmission of the five channels of 3/2 stereophony and for the transmission of two stereo channels and three additional reporting channels. Thus, for example, television programmes with multi-lingual audio signals can be transmitted. The process is characterized by the fact that, by reducing the transmitted data, only a bit rate of 384 kbit/s is required for transmission. The data reduction is achieved by mapping K input channels segment by segment onto N <= K virtual spectral data channels, by quantizing, encoding and transmitting the spectral data channels taking into consideration the laws of psychoacoustics, and by reproducing K output channels from the transmitted bit stream from the N <= K spectral data channels using a list transmitted with the bit stream.