NOISE REDUCTION DURING AUDIO TRANSMISSION Russian patent published in 2017 - IPC G10L21/02 G10L21/224 

FIELD: physics, communication.

SUBSTANCE: invention relates to the field of speech audio signals processing. The technical result is achieved by providing two codebooks that contain variants of the desired signal, representing a possible component of the desired signal, and the embodiments of the noise signal shares, representing the possible noise shares, the segmentations of the audio signal into time segments, and forming possible embodiments of the estimated signal for each time segment, as a combination of a scaled version of a possible embodiment of the desired signal and a weighted combination of possible embodiments of the noise signal shares, minimizing the costs function indicating a difference between the possible estimated signal embodiment and the audio signal in the time segment, determining the signal embodiment for the time segment from the embodiments of the estimated signal, and the noise audio signal compensation based on this possible signal embodiment.

EFFECT: invention provides noise reduction during receiving audio signals.

14 cl, 3 dwg