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Automated equalization

  • US 10,165,362 B2
  • Filed: 12/24/2015
  • Issued: 12/25/2018
  • Est. Priority Date: 12/24/2015
  • Status: Active Grant
First Claim
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1. An electronic device for improving speech recognition of a device under test (DUT), comprising:

  • an extracting unit to extract a reference spectral profile from a reference signal and a DUT spectral profile from a DUT signal;

    a comparing unit to compare the reference spectral profile and the DUT spectral profile;

    a delta calculating unit to compute a delta between the reference spectral profile and the DUT spectral profile to obtain a computed delta;

    a design unit to design a correction filter based on the computed delta; and

    an application unit to apply the correction filter to a signal produced by a microphone internal to the DUT to improve speech recognition.

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