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Coding model selection

  • US 7,747,430 B2
  • Filed: 02/23/2005
  • Issued: 06/29/2010
  • Est. Priority Date: 02/23/2004
  • Status: Active Grant
First Claim
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1. An apparatus, comprising:

  • an input unit, configured to receive frames of an audio signal,a long term prediction analysis block, configured to perform a long term prediction analysis on the frames of the audio signal and to form long term prediction parameters based on properties of the audio signal,a first excitation block, configured to perform a first excitation for frames of the audio signal,a second excitation block, configured to perform a second excitation for frames of the audio signal,a parameter analysis block, configured to analyze said long term prediction parameters, andan excitation selection block, configured to select, based on the parameter analysis by said parameter analysis block, one excitation block among said first excitation block and said second excitation block for performing the excitation for encoding the frames of the audio signal.

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