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Spatial processor for enhanced performance in multi-talker speech displays

  • US 7,391,877 B1
  • Filed: 03/30/2007
  • Issued: 06/24/2008
  • Est. Priority Date: 03/31/2003
  • Status: Expired due to Term
First Claim
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1. An interference-minimizing and speech-intelligibility-maximizing head related transfer function (HRTF) spatial configuration method comprising the steps of:

  • receiving a plurality of speech input signals from competing talkers located at different source locations;

    filtering said speech input signals with head-related transfer functions;

    normalizing levels of said head related transfer functions from each source location whereby a speech-shaped noise input will produce the same level in the ear where the output is most intense at all of the source locations;

    combining the outputs of said head related transfer functions; and

    communicating outputs of said head related transfer functions to headphones of a system operator.

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