AUDIO CODER FOR CODING MULTI-CHANNEL SIGNAL AND AUDIO CODER FOR DECODING CODED AUDIO SIGNAL Russian patent published in 2019 - IPC G10L19/08 G10L19/32 G10L19/13 G10L19/18 

Abstract RU 2680195 C1

FIELD: data processing.

SUBSTANCE: invention relates to means for encoding a multi-channel audio signal. Downmix of multi-channel signal (4) is performed to obtain downmix signal (14). Downmix signal (14) is encoded. Wherein downmix signal (14) has a lower range and an upper range. Wherein coding downmix signal (14) includes processing bandwidth expansion for parametric coding of the upper range. Spectral representation of multi-channel signal (4) is generated. Spectral representation comprising the lower range and the upper range of the multi-channel signal is processed to generated multi-channel information (20). Wherein coding downmix signal (14) further comprises decoding encoded downmix signal (26) to obtain downmix encoded and decoded signal (54).

EFFECT: increased efficiency of audio coding.

14 cl, 21 dwg

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RU 2 680 195 C1

Authors

Dish Sasha

Fuks Gijom

Ravelli Emmanuel

Nojkam Kristian

Shmidt Konstantin

Benndorf Konrad

Nidermajer Andreas

Shubert Benyamin

Gajger Ralf

Dates

2019-02-18Published

2016-03-07Filed