Method for transmitting a digitally coded audio signal

摘要

To transmit a digitally coded audio signal consisting of a sequence of information blocks, the digitally coded audio signal is first subjected to a channel coding dimensioned in accordance with the desired error protection at the transmitting end. Then the channel-coded audio signal is transmitted via a highly noisy channel, for example by means of terrestrial or satellite broadcast transmission. At the receiving end, finally, the transmitted audio signal is subjected to a channel coding, during which an error correction is effected. To optimise the channel coding with respect to a minimum bit rate and a maximum error protection, a variable bit error protection is provided in dependence on the different significance of the individual binary positions of each information block, using a convolution code, known per se, for the channel coding.