Audio signal coding method and apparatus

  • US 9,779,749 B2
  • Filed: 11/02/2016
  • Issued: 10/03/2017
  • Est. Priority Date: 10/08/2011
  • Status: Active Grant
First Claim
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1. An audio signal coding method, comprising:

  • categorizing audio signals into high-frequency audio signals and low-frequency audio signals;

    coding the low-frequency audio signals using at least one of a time domain (TD) coding manner or a frequency domain (FD) coding manner; and

    selecting a bandwidth extension mode to code the high-frequency audio signals according to at least one of a low-frequency coding manner by;

    selecting a time domain bandwidth extension (TD-BWE) mode to perform TD coding for the high-frequency audio signals when the low-frequency audio signals should be coded using the TD coding manner; and

    selecting a frequency domain bandwidth extension (FD-BWE) mode to perform FD coding for the high-frequency audio signals when the low-frequency audio signals should be coded using the FD coding manner.

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