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Automated language assessment using speech recognition modeling

  • US 7,062,441 B1
  • Filed: 05/13/1999
  • Issued: 06/13/2006
  • Est. Priority Date: 05/13/1999
  • Status: Active Grant
First Claim
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1. A system for measuring an ability of a subject, comprising:

  • a first set of task items that require the subject to provide one or more spoken responses;

    a speech recognition system coupled to receive the spoken response and to provide an estimate of the spoken response, the speech recognition system having an associated non-random inaccuracy;

    a scoring device, the scoring device being operable to convert the estimate into a task item score; and

    a computation device, the computation device providing a subject score based on a combination of task item scores using a scoring computation model that depends upon an expected task item-dependent operating characteristic of the speech recognition system, including the associated non-random inaccuracy of the speech recognition system.

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