Eberlein, E.E.EberleinHerre, J.J.HerreGrill, B.B.GrillSeitzer, D.D.SeitzerBrandenburg, K.K.Brandenburg2022-03-082022-03-082005https://publica.fraunhofer.de/handle/publica/306873The 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.de608621006patent1992-4236989