azure speech to text minimum score

margotmg 1 Reputation point
2021-04-18T14:08:14.123+00:00

When using Azure Speech to Text (either with or without a customized model) there are times when the system does not recognize a word. I don't mean the word is wrongly recognized, but that the system acts as if nothing was heard.

Might this be due to the fact that the minimum confidence score hasn't been achieved? I haven't been able to find what the minimum confidence score of Azure Speech to Text is.

Could anyone help me out? Thanks

Azure AI Speech
Azure AI Speech
An Azure service that integrates speech processing into apps and services.
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  1. romungi-MSFT 44,581 Reputation points Microsoft Employee
    2021-04-20T06:36:27.64+00:00

    @margotmg The minimum score or confidence for recognition is 0.0 and the maximum is 1.0 for the speech input, This is displayed in the output if you use the format parameter as detailed. For word level assessment you should use pronouncement assessment parameters with headers to get AccuracyScore, FluencyScore and CompletenessScore with weight. This sample request should help you build the request and view the responses.

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