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CONCEPT FOR ENCODING AN AUDIO SIGNAL AND DECODING AN AUDIO SIGNAL USING DETERMINISTIC AND NOISE LIKE INFORMATION

  • US 20160232908A1
  • Filed: 04/18/2016
  • Published: 08/11/2016
  • Est. Priority Date: 10/18/2013
  • Status: Active Grant
First Claim
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1. An encoder for encoding an audio signal, the encoder comprising:

  • an analyzer configured for deriving prediction coefficients and a residual signal from an unvoiced frame of the audio signal;

    a gain parameter calculator configured for calculating a first gain parameter information for defining a first excitation signal related to a deterministic codebook and for calculating a second gain parameter information for defining a second excitation signal related to a noise-like signal for the unvoiced frame; and

    a bitstream former configured for forming an output signal based on an information related to a voiced signal frame, the first gain parameter information and the second gain parameter information.

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