FIELD: information technologies.
SUBSTANCE: speech coders and speech coding methods are disclosed, to code inactive frames at various speeds, as well as a device and methods to process a coded speech signal t calculate a decoded frame on the basis of spectral envelope description in the first frequency range and spectral envelope description in the second frequency range, besides, the description for the first frequency range is based on information from the appropriate coded frame, and the description for the second frequency range is based on the information from at least one previous coded frame. Calculation of the decoded frame may also be based on description of time information for the second frequency range, which is based on information from at least one previous coded frame.
EFFECT: improved legibility of speech.
74 cl, 66 dwg
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