FIELD: acoustics.
SUBSTANCE: invention relates to means for control over phase coherency for harmonic signals in perceptual audio codecs. Decoder comprises a decoding unit and a phase adjustment unit. Decoding unit is adapted for decoding an encoded audio signal to obtain a decoded audio signal. Phase adjustment unit is adapted for adjustment of the decoded audio signal to obtain an adjusted in phase audio signal. Phase adjustment unit is configured able to receive control information depending on the vertical phase coherence of the encoded audio signal. Besides, the phase adjustment unit is adapted for adjustment of the decoded audio signal basing on control information.
EFFECT: technical result is improvement the audio signal quality.
18 cl, 9 dwg
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