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AUDIO ENCODER FOR ENCODING A MULTICHANNEL SIGNAL AND AUDIO DECODER FOR DECODING AN ENCODED AUDIO SIGNAL

  • US 20190333525A1
  • Filed: 07/09/2019
  • Published: 10/31/2019
  • Est. Priority Date: 03/09/2015
  • Status: Active Grant
First Claim
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1. An audio encoder for encoding a multichannel signal, comprising:

  • a downmixer for downmixing the multichannel signal to acquire a downmix signal,a linear prediction domain core encoder for encoding the downmix signal, wherein the downmix signal comprises a low band and a high band, wherein the linear prediction domain core encoder is configured to apply a bandwidth extension processing for parametrically encoding the high band;

    a filterbank for generating a spectral representation of the multichannel signal; and

    a joint multichannel encoder configured to process the spectral representation comprising the low band and the high band of the multichannel signal to generate multichannel information.

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