FIELD: computer engineering.
SUBSTANCE: invention is related to computed processing of audio data. The technical result is achieved by determining an estimate of two harmonic parameters for each of one or more harmonic components of the most previous frame from one or more previous frames, wherein two harmonic parameters for each of one or more harmonic components of the most previous frame depend on the first group of three or more of a plurality of reconstructed spectral coefficients for each of one or more previous frames of the audio signal.
EFFECT: eliminating the overlap of harmonic components on the resolution elements when the frequency resolution of the MDCT coefficients is low relative to the fundamental frequency of the tone signal.
57 cl, 9 dwg
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