Problem Description

When upgrading the Nuance Recognizer from NR-9 to NR-10, the Recognition results may be too lenient.

For example, when a word is missing from the Expect to Hear step on the Cyara hosted portal, the step will fail due to a low confidence score. The exact same step configured on an on premise solution with NR-10 will pass with a high confidence score.

Solution

There are two solutions available:

1. Insert Tag at the beginning of the Expect to Hear step
   {Language en-US-FP}
2. Add line into Recognition section in Speech Engine configuration file
   <add key="AlwaysUseFalsePositiveAlgorithm" value="true" />

Please Note: Starting with version 6.10.1, the AlwaysUseFalsePositive Algorithm is enabled by default.