FIELD: computer technology; processing audio signals.
SUBSTANCE: technical result is achieved by generating a primary signal having a frequency range extension, and frequency range extension is not included in the frequency range of the input audio signal; generating a parametric representation for frequency range extension using the frequency range of the input audio signal and the trained neural network; and processing the primary signal using a parametric representation for the expansion frequency range to obtain a processed primary signal having frequency components in the expansion frequency range.
EFFECT: technical result is to provide the principle of improved generation of an audio signal with an extended band.
34 cl, 23 dwg
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