FIELD: multimedia devices.
SUBSTANCE: invention relates to the processing of an audio signal and is intended for encoding audio objects using an adaptable to an audio object of individual time-frequency resolution. Audio decoder decodes a multi-object audio signal consisting of a downmix signal X and side information PSI. Side information comprises object-specific side information PSIi for an audio object Si in a time/frequency region R(tR, fR), and object-specific time/frequency resolution information TFRIi indicative of an object-specific time/frequency resolution TFRh of the object-specific side information for the audio object si in the time/frequency region R(tR, fR). Audio decoder comprises an object-specific time/frequency resolution determiner configured to determine the object-specific time/frequency resolution information TFRIi from the side information PSI for the audio object si, an object separator configured to separate the audio object si from the downmix signal X using the object-specific side information in accordance with the object-specific time/frequency resolution TFRIi.
EFFECT: technical result is increase in the quality of reproducing an audio signal.
22 cl, 14 dwg
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