ADDING COMFORT NOISE FOR MODELING BACKGROUND NOISE AT LOW DATA TRANSMISSION RATES Russian patent published in 2017 - IPC G10L19/12 

Abstract RU 2633107 C2

FIELD: physics.

SUBSTANCE: decoder is configured to process the encoded audio bitstream. The decoder comprises: a bitstream decoder configured to extract a decoded audio signal from the bitstream, the decoded audio signal comprising, at least, one decoded frame; a noise estimating device configured to generate a noise estimate signal including a level and/or spectral noise estimate in the decoded audio signal; a comfort noise generating unit configured to extract a comfort noise signal from the noise estimation signal; and a combiner configured to combine the decoded frame of the decoded audio signal and the comfort noise signal to obtain an audio output signal.

EFFECT: increasing the natural sound of the coded audio signal.

26 cl, 6 dwg

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RU 2 633 107 C2

Authors

Fuks Gijom

Lombard Antoni

Ravelli Emmanuel

Dela Shtefan

Lekont Zheremi

Ditts Martin

Dates

2017-10-11Published

2013-12-19Filed