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margotmg-5583 asked romungi-MSFT answered

azure speech to text minimum score

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-speech
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@margotmg-5583 Could you please provide samples of voice or audio to check the same? How are you providing the speech as input? Is it through microphone or any other source? Also, what is the language used?

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The input is coming through audio data files. The language is Spanish, and this was specified in the python script.

I just want to know the minimum score for a word to be recognized. Where can I find this information?

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romungi-MSFT avatar image
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romungi-MSFT answered

@margotmg-5583 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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