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confidencelevel
Default Value: 0.5
The speech recognition confidence level, a float value in the range of 0.0 to 1.0. Results are rejected (a nomatch event is thrown) when application.lastresult$.confidence is below this threshold. The platform has been finely tuned to minimize the number of false positives above 0.5, and as such lowering this value is not recommended.
<?xml version="1.0"?>
<vxml version="2.0">
<property name="confidencelevel" value="0.75"/>
<form>
<field type="boolean">
<prompt>
Please say yes or no.
</prompt>
</field>
</form>
</vxml>
From this example, the threshold of the confidence level is raised to 0.75, requiring a clear response of a “yes” or “no” answer. Using a high confidence level setting is useful for when you are expecting a precise match to your grammar.
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Last modified 3yr ago