FIELD: computer engineering.
SUBSTANCE: invention relates to computer engineering for processing audio data. Result is achieved due to the stage at which the spectrum (XG) is formed to obtain the formed spectrum (XG), which is summed with the decoded and dequantized spectrum (XD) or with a combination of the predicted spectrum and the decoded and dequantized spectrum (XDT), wherein the generated spectrum (XG) is obtained for each frequency band from the source spectrum, wherein the spectrum of the source is one of: a second prediction spectrum (XNP), or a random noise spectrum (XN), or already formed portions of the formed spectrum (XG), or a combination of at least two of them.
EFFECT: reduced number of errors during parametric coding.
9 cl, 30 dwg
