AUDIO ENCODER AND AUDIO DECODER WITH VOLUME METADATA AND PROGRAM BOUNDARIES Russian patent published in 2020 - IPC G10L19/16 

FIELD: calculating; counting.

SUBSTANCE: invention relates to means of generating an encoded bit audio stream. Input buffer stores at least one frame of the encoded bit audio stream. Encoded bit audio stream comprises audio data and a metadata container. Metadata container comprises one or more metadata content metadata and security data. Audio decoder is connected to buffer memory, decodes audio data to create decoded audio data. Syntax analyser is connected to or integrated with the audio decoder. Syntax analyser is configured to perform audio data parsing. Output buffer stores decoded audio data. Metadata container begins with a sync word identifying the beginning of the metadata container. Protective data are located after one or more metadata content metadata. Each of one or more metadata content items begins with a content identifier which identifies the type of metadata present in the content, followed by the size of the information content, which identifies the number of metadata present in the information content.

EFFECT: technical result consists in improved efficiency of coding.

20 cl, 11 dwg, 2 tbl