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Method and apparatus for rendering sound signal, and computer-readable recording medium

  • US 10,674,299 B2
  • Filed: 04/13/2015
  • Issued: 06/02/2020
  • Est. Priority Date: 04/11/2014
  • Status: Active Grant
First Claim
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1. A method of rendering an audio signal, the method comprising:

  • receiving a plurality of input channel signals including at least one height input channel signal;

    determining whether an output channel, corresponding to a height input channel signal among the at least one height input channel signal, is a virtual channel;

    determining whether elevation rendering is possible based on a predetermined table for mapping the height input channel signal to a plurality of output channel signals;

    when the output channel corresponding to the height input channel signal is the virtual channel and the elevation rendering is possible, obtaining an elevation rendering parameter;

    when the output channel corresponding to the height input channel signal is not the virtual channel, obtaining a non-elevation rendering parameter; and

    obtaining a downmix matrix, to convert the plurality of input channel signals into the plurality of output channel signals, based on at least one of the elevation rendering parameter and the non-elevation rendering parameter.

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