Custom grammars supported by Microsoft Azure's Speech to Text recognition service?

Aman Bhardwaj 1 Reputation point
2021-09-07T10:23:18.38+00:00

Hi,

I have below 2 queries:

  1. Does the speech recognition service support the custom GRXML based grammar for recognition?
  2. Does the speech recognition service support the compiled(binary-format) grammar for recognition?

We have integrated C++ SDK provided by Microsoft to use these services. I have tried to find what are the types of grammars supported and could only find something called as PhraseListGrammars(https://learn.microsoft.com/en-us/python/api/azure-cognitiveservices-speech/azure.cognitiveservices.speech.phraselistgrammar?view=azure-python).

Please help us if you are know how much Microsoft's cloud STT service supports such custom grammars.

Thanks

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Azure AI Speech
An Azure service that integrates speech processing into apps and services.
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  1. YutongTie-MSFT 47,421 Reputation points
    2021-09-08T01:46:17.587+00:00

    Hello,

    Please refer to the document for grammar supported by Azure speech https://www.w3.org/TR/speech-grammar/

    GRXML should be supported as below:

    130007-image.png

    Not quite sure what do you mean by binary format, but you should find all related information in above document.

    Regards,
    Yutong

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  2. Aman Bhardwaj 1 Reputation point
    2021-09-08T11:13:14.59+00:00

    Hi ,

    Thanks for the response. We are using the SpeechRecognizer in C++ SDK(https://learn.microsoft.com/en-us/cpp/cognitive-services/speech/speechrecognizer) for the recognition.

    Can you also help us find out which is the exact API in C++ that take the GRXML grammars.
    We could only find the PhraseListGrammars APIs.

    Thanks for the help,
    Aman

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