multi-channel audio encoder, multi-channel audio decoder, methods of encoding n audio signals into m audio signals and associated parametric data, decoding k audio signals and associated parametric data into n audio signals, and transmit and receive an encoded multi-channel audio signal, encoded multi-channel audio signal, storage medium, transmission system, transmitter, receiver, multi-channel audio player, multi-channel audio recorder , and, computer program product

摘要

MULTI-CHANNEL AUDIO ENCODER, MULTI-CHANNEL AUDIO DECODER, METHODS OF CODING N AUDIO SIGNALS IN M ATJDIO SIGNALS AND PARAMETRIC DATA DECODING K AUDIO SIGNALS AND PARAMIUM SIGNAL DATA IN SIGNALS TO TRANSMIT AND RECEIVE AN ENCODED MULTI-CHANNEL AUDIO SIGNAL, ENCODED MIUJLTI AUDIO SIGNAL, STORAGE MEDIA, TRANSMISSION SYSTEM, RECEIVER, MULTI-CHANNEL AUDIO PLAYER , E, COMPUTER PROGRAM PRODUCT. A multi-channel audio encoder (10) for encoding a multi-channel audio signal (101), for example a 5.1 channel audio signal, in a below spatial mix (102), for example, a stereo signal , and associated parameters (104, 105). The encoder (10) includes first and second units (110, 120). The first unit (110) encodes the multi-channel audio signal (101) in the below spatial mix (102) and parameters (104). These parameters (104) enable a multi-channel decoder (20) to reconstruct the multi-channel audio signal (203) of the below spatial mix (102). The second unit (120) generates, from the below-spatial mix (102), parameters (105) that enable the decoder to reconstruct the below-spatial mix (202) from an alternate below mix (103), for example a so-called below artistic mix. was mixed manually in a sound studio. In this way, decoder 20 can effectively deal with a situation in which an alternate below mix (103) is received instead of the usual below spatial mix (102). In decoder (20), first the below spatial mix (202) is reconstructed from the alternative below mix (103) and from parameters (105). Next, the below spatial mix (202) is decoded into the multi-channel audio signal (203).