AUDIO ENCODER AND AUDIO DECODER WITH METADATA INFORMATION ON PROGRAM OR SUBSTREAMS STRUCTURE Russian patent published in 2017 - IPC G10L19/16 

FIELD: information technology.

SUBSTANCE: buffer memory is a non-volatile carrier configured to store at least one frame of encoded audio bitstream. Wherein encoded audio bitstream contains audio data and a metadata container. Metadata container includes a header and one or more metadata contents after a header. One or more metadata contents comprise dynamic range compression (DRC) metadata, and DRC metadata represents or contains profile metadata indicating whether DRC metadata contain control values of dynamic range compression for use in dynamic range compression in accordance with one compression profile for audio content. If profile metadata indicate that DRC metadata contain DRC control values for use in dynamic range compression, DRC metadata also contains DRC control values set generated in accordance with a compression profile.

EFFECT: increased efficiency of detection and correction of errors of audio stream metadata identification due to presence of audio stream content metadata in audio stream.

14 cl, 8 dwg, 2 tbl