METHODS OF MANAGEMENT OF THE INTERCHANNEL COHERENCE OF SOUND SIGNALS THAT ARE EXPOSED TO THE INCREASING MIXING Russian patent published in 2017 - IPC G10L19/08 H04S3/00 

FIELD: physics.

SUBSTANCE: determining the characteristics of audio data corresponding to a number of audio channels. These sound characteristics may contain spatial parameter data. The decorrelation filtering processes for audio data may be based on sound characteristics. These decorrelational filtering processes can cause specific coherence between decorrelation signals between channel-specific decorrelation signals for at least one pair of channels. Such channel-specific de-correlation signals may be received and/or determined. You can control the inter-channel coherence between a number of pairs of audio channels. By performing operations on the filtered audio data, a set of channel-specific decorrelation signals corresponding to the set of IDC values can be synthesized.

EFFECT: high quality of hierarchical encoding and decoding.

17 cl, 36 dwg