FIELD: data processing.
SUBSTANCE: invention relates to encoding and decoding and is intended for performing high-frequency reconstruction of an audio signal. These methods and apparatus for decoding and encoding audio signals, in particular a decoding method, include receiving a waveform encoded signal having a spectral composition corresponding to a subset of the frequency band above the transition frequency. Waveform encoded is interleaved with a parametric high-frequency reconstruction of the audio signal above the transition frequency, thus, an improved reconstruction of the high-frequency bands of the audio signal is achieved.
EFFECT: providing improved reconstruction of transients and tonal components in high-frequency bands.
20 cl, 9 dwg
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