×

Apparatus and method for encoding and decoding of integrated speech and audio utilizing a band expander with a spectral band replication (SBR) to output the SBR to either time or transform domain encoding according to the input signal characteristic

  • US 10,121,482 B2
  • Filed: 06/09/2017
  • Issued: 11/06/2018
  • Est. Priority Date: 07/14/2008
  • Status: Active Grant
First Claim
Patent Images

1. An encoding method performed by one or more processors, the method comprising:

  • analyzing a characteristic of an input signal whether the input signal is an audio characteristic signal or a speech characteristic signal;

    generating information for expanding the input signal to a high frequency band signal by applying a Spectral Band Replication (SBR); and

    encoding the input signal based on characteristic of the input signal,wherein the encoding of the input signal is performed by one ofencoding a core band of the input signal using a time-domain encoding module, when the input signal is the speech characteristic signal andencoding the core band of the input signal using a transform encoding module, when the input signal is the audio characteristic signal,wherein the input signal is processed by switching either the time-domain encoding module or the transform encoding module based on the characteristic of the input signal,wherein the core band is a frequency band of the input signal which is not to be expanded, andwherein an output of applying the SBR with respect to the input signal is transmitted to either the time-domain encoding module or the transform encoding module according to the characteristic of the input signal.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×