AUDIO ENCODER, AUDIO DECODER, ENCODED AUDIO INFORMATION, METHODS OF ENCODING AND DECODING AUDIO SIGNAL AND COMPUTER PROGRAMME Russian patent published in 2015 - IPC G10L19/02 H03M7/30 

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to communication engineering. An audio decoder for providing decoded audio information based on encoded audio information includes a window application-based signal converter formed to map a frequency-time presentation, which is described by the encoded audio information, to a time interval presentation. The window application-based signal converter is formed to select one of a plurality of windows, which include windows of different transition inclinations and windows of different conversion lengths based on window information. The audio decoder includes a window selector formed to evaluate window information of a variable-length code word for selecting a window for processing said part of the frequency-time presentation associated with said audio information frame.

EFFECT: eliminating artefacts arising when processing time-limited frames.

15 cl, 23 dwg