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Digital audio companding and error conditioning

  • US 4,809,274 A
  • Filed: 09/04/1987
  • Issued: 02/28/1989
  • Est. Priority Date: 09/19/1986
  • Status: Expired due to Term
First Claim
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1. A system for processing audio signals, comprisingmeans for providing a gain word for a first digital audio signal sample;

  • means for processing said first digital audio signal sample with said gain word in accordance with a first predetermined process to compress said first digital audio signal sample;

    means for processing said gain word and said compressed digital audio signal sample in accordance with a second predetermined process to provide a reproduced digital audio signal sample;

    means for calculating the effect of said first and second predetermined processes upon the accuracy of the reproduced digital audio signal sample; and

    means for processing the first digital audio signals ample in accordance with said calculated effect to provide a corrected digital audio signal sample for said compression in accordance with said first predetermined process.

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