METHOD AND SYSTEM FOR ENCODING A STEREO AUDIO SIGNAL USING PRIMARY CHANNEL ENCODING PARAMETERS FOR ENCODING A SECONDARY CHANNEL Russian patent published in 2020 - IPC G10L19/08 G10L19/02 G10L19/06 G10L19/24 

Abstract RU 2729603 C2

FIELD: means for encoding stereophonic sound.

SUBSTANCE: mixing with lower left and right channels of stereophonic audio signal for formation of primary and secondary channels. Primary channel is encoded and secondary channel is coded. Second channel coding comprises a coherency analysis between encoding parameters, calculated during the secondary channel encoding, and the encoding parameters calculated during the primary channel encoding, to decide whether the encoding parameters, calculated during primary channel encoding, sufficiently close to coding parameters calculated during secondary channel coding to be reused during coding of secondary channel.

EFFECT: technical result consists in improved efficiency of coding.

49 cl, 18 dwg

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RU 2 729 603 C2

Authors

Vaillancourt, Tommy

Jelinek, Milan

Dates

2020-08-11Published

2016-09-22Filed