Patent ID: 9514761
Filing Date: 2016-12-06
CPC Classification: G10L

Claim Text:
1. A decoding method in an audio processing system comprising a decoder, the method comprising: receiving, by the decoder, a first waveform-coded signal having a spectral content up to a first cross-over frequency, receiving, by the decoder, a second waveform-coded signal having a spectral content corresponding to a subset of the frequency range above the first cross-over frequency, wherein the spectral content of the second waveform-coded signal includes a frequency interval extending down to the first cross-over frequency and having a time-variable upper bound, receiving, by the decoder, high frequency reconstruction parameters, performing, by the decoder, high frequency reconstruction using the first waveform-coded signal and the high frequency reconstruction parameters so as to generate a frequency extended signal having a spectral content above the first cross-over frequency, and generating an interleaved signal by interleaving, by the decoder, the frequency extended signal with the second waveform-coded signal.