ADAPTATION OF WEIGHING ANALYSIS OR SYNTHESIS WINDOWS FOR ENCODING OR DECODING BY CONVERSION Russian patent published in 2017 - IPC G10L19/02 H03M7/30 

FIELD: acoustics; information technology.

SUBSTANCE: invention relates to processing an audio signal and/or a video signal in the form of a sequence of samples and is intended for encoding and decoding a digital audio signal. For this purpose encoding or decoding is carried out by converting the digital audio signal using weighing analysis windows (h_a) or synthesis windows (h_s) used for samples frames, herewith the method includes non-uniform sampling (E10) of the initial window provided for a transformant of preset initial size N in order to use secondary conversion size M, which is different from N. Device includes a sampling module configured able to perform non-uniform sampling of the initial window provided for the transformant of given initial size N in order to use secondary conversion size M, which is different from N.

EFFECT: saving memory resources and computational resources when encoding and decoding digital an audio signal by converting using weighing analysis and synthesis windows.

15 cl, 7 dwg, 3 tbl