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Method and apparatus for layout and format independent 3D audio reproduction

  • US 9,378,747 B2
  • Filed: 05/07/2012
  • Issued: 06/28/2016
  • Est. Priority Date: 05/07/2012
  • Status: Active Grant
First Claim
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1. A device for encoding an input audio signal into a channel-independent representation comprising a multichannel output audio signal for reproduction over a multiple loudspeaker system, the device comprising:

  • a receiver that receives the input audio signal comprising a plurality of individual channels, N;

    an interface that defines a space D covering a target audience and for partitioning the space D into a plurality of portions k independent from the plurality of channels N;

    a processor that generates at least one spatial presence factor m for each combination of an input audio channel and portion k, wherein each factor m quantifies a degree of presence of each input audio signal into each portion k of space D; and

    a processor that maps the input audio signal to the output audio signal, for reproduction within the portions k, based on the value assigned to each spatial presence factor m.

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