Speech recognition rejecting many responses
ScanSoft OSR 2.0 uses new confidence scores to obtain the recognition result. Some of the borderline utterances that would have been accepted in OSR 1.x might be rejected in OSR 2.0.
Try one of the following changes to increase the recognition rate:
- If you want to use the OSR 1.x confidence score scale, set the attribute swirec_backward_compatible_confidence_scores to 1.1 in the OSR server user configuration file. Refer to the Scansoft OSR 2.x reference manual for further information.
- If you want to use the OSR 2.x confidence score but you want to increase the recognition rate, try decreasing the confidencelevel property in the /vs/data/vxml/defaults.xml file on the Avaya Interactive Response system, then restart the voice system.
