AUDIO OBJECT SEPARATION FROM MIXTURE SIGNAL USING OBJECT-SPECIFIC TIME/FREQUENCY RESOLUTIONS Russian patent published in 2018 - IPC G10L19/08 H04S3/00 

Abstract RU 2646375 C2

FIELD: multimedia devices.

SUBSTANCE: invention relates to the processing of an audio signal and is intended for encoding audio objects using an adaptable to an audio object of individual time-frequency resolution. Audio decoder decodes a multi-object audio signal consisting of a downmix signal X and side information PSI. Side information comprises object-specific side information PSIi for an audio object Si in a time/frequency region R(tR, fR), and object-specific time/frequency resolution information TFRIi indicative of an object-specific time/frequency resolution TFRh of the object-specific side information for the audio object si in the time/frequency region R(tR, fR). Audio decoder comprises an object-specific time/frequency resolution determiner configured to determine the object-specific time/frequency resolution information TFRIi from the side information PSI for the audio object si, an object separator configured to separate the audio object si from the downmix signal X using the object-specific side information in accordance with the object-specific time/frequency resolution TFRIi.

EFFECT: technical result is increase in the quality of reproducing an audio signal.

22 cl, 14 dwg

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RU 2 646 375 C2

Authors

Dish, Sasha

Paulus, Jouni

Kastner, Torsten

Dates

2018-03-02Published

2014-05-09Filed