ASR Rejections

An ASR rejection indicates that the recognizer was not able to transcribe the input audio to text with sufficient confidence.

A rejection should not be considered a server error, since it is a valid response from the recognizer.

The tool will output the special token <REJECTED> as the predicted transcription in the case of an ASR rejection, and the word error rate for that test case will be 100%.

If you are running an ASR+NLU test, the ASR result with the rejection will be passed along to the NLU engine, and the predicted intent will be the builtin NO_MATCH.

See the description about the rejected field in the Hypothesis section of the Mix documentation for more information.