AUDIOVISUAL CONTENT ITEM DATA STREAMS Russian patent published in 2019 - IPC H04N21/2362 H04N21/84 H04N21/242 G10L21/55 

FIELD: electrical communication engineering.

SUBSTANCE: invention relates to the processing of an audiovisual content item data stream and, in particular, audiovisual content of an MPEG-2 transport stream. Disclosed is transmitter that generates an audiovisual content item data stream (for example, a transport stream), comprising a plurality of individual audiovisual data streams with audiovisual components for a content item. Generator (301–307) generates a first stream comprising both mandatory audio data and replaceable audio data for the audio representation where the replaceable audio data being data can be replaced by alternative audio data, combiner (309) includes the resulting stream into the content item data stream. Receiving apparatus includes extractor (403) which extracts the mandatory audio data from the received stream. Replacer (415) may replace the replaceable audio data by alternative audio data and output (415) can generate an audio signal from the mandatory and alternative audio data.

EFFECT: technical result is to provide an improved and more flexible data stream for audiovisual content.

13 cl, 16 dwg