FIELD: information technology.
SUBSTANCE: service data is incorporated into a compressed audio signal by replacement of LSB-bits at least in one frequency subband of the compressed audio signal with service data. The compressed audio signal is down mixing of a multichannel signal, and service data contains spatial audio data that shall be used for processing of a decoded version of the compressed audio signal.
EFFECT: improvement of quality of sound reproduction in a decoder.
13 cl, 6 dwg
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