×

Method and an apparatus for decoding an audio signal

  • US 8,005,229 B2
  • Filed: 03/16/2009
  • Issued: 08/23/2011
  • Est. Priority Date: 12/07/2006
  • Status: Active Grant
First Claim
Patent Images

1. A method of decoding an audio signal performed by an audio coding system, comprising:

  • receiving a downmix signal comprising at least one object signal and object information determined when the downmix signal is generated;

    receiving mix information for controlling the at least one object signal;

    generating downmix processing information using the object information and the mix information;

    processing the downmix signal using the downmix processing information; and

    generating multi-channel information using the object information and the mix information,wherein;

    a number of channels of the downmix signal is equal to a number of channels of the processed downmix signal;

    a channel of the processed downmix signal comprising a combination of a first channel of the downmix signal multiplied by a first gain and a second channel of the downmix signal multiplied by a second gain in case that the downmix signal corresponds to a stereo signal;

    the object information includes at least one of object level information and object correlation information; and

    the multi-channel information includes at least one of channel level information and channel correlation information.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×