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Scalable audio coding system

  • US 6,182,031 B1
  • Filed: 09/15/1998
  • Issued: 01/30/2001
  • Est. Priority Date: 09/15/1998
  • Status: Expired due to Term
First Claim
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1. A method of coding an audio signal, comprising:

  • filtering the audio signal into filtered frequency bands, each frequency band independently selectable for decoding, frequency shifting the filtered audio signals each to a baseband frequency, downsampling the filtered audio signal, and coding the downsampled filtered audio signal.

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