Azure Cognitive Services - Batch Transcription API responds with error message "The recording URI is invalid."

Question

Steps Followed:

1. I created a speech services instance in West US.
2. I have the right headers(Content-Type and Ocp-Apim-Subscription-Key)
3. I make a POST request to https://westus.cris.ai/api/speechtotext/v2.0/transcriptions/ with below request payload

{
  "recordingsUrl": "https://transcribehm97c1.blob.core.windows.net/audio-files/2019-04-04_Blockchain%20explained%20with%20TruStory%27s%20Preethi%20Kasireddy.mp3?st=2019-05-27T12%3A19%3A27Z&se=2019-12-31T12%3A19%3A00Z&sp=rl&sv=2018-03-28&sr=b&sig=HFBvGl1pmCM95MNU9U3yniMNXrUMT6RmPb36F32cxrY%3D",
  "models": [],
  "locale": "en-US",
  "name": "I dont know why this is not working",
  "description": "Someone please send help",
  "properties": {
    "ProfanityFilterMode": "Masked",
    "PunctuationMode": "DictatedAndAutomatic"
  }
}

4. I get a “202 Accepted” response with below headers. This confirms that the request body is valid.

location: https://westus.cris.ai/api/speechtotext/v2.0/transcriptions/69b7abf4-6383-4490-88a9-9fd42a77e470

5. When I make a GET Request to the above location, I see this

{
  "recordingsUrl": "https://transcribehm97c1.blob.core.windows.net/audio-files/2019-04-04_Blockchain explained with TruStory's Preethi Kasireddy.mp3?st=2019-05-27T12:19:27Z&se=2019-12-31T12:19:00Z&sp=rl&sv=2018-03-28&sr=b&sig=HFBvGl1pmCM95MNU9U3yniMNXrUMT6RmPb36F32cxrY%3D",
  "resultsUrls": {},
  "models": [“I have removed this for brevity”],
  "statusMessage": "The recordings URI is invalid.",
  "id": "69b7abf4-6383-4490-88a9-9fd42a77e470",
  "createdDateTime": "2019-05-27T12:43:39Z",
  "lastActionDateTime": "2019-05-27T12:43:50Z",
  "status": "Failed",
  "locale": "en-US",
  "name": "I dont know why this is not working",
  "description": "Someone please send help",
  "properties": {
    "ProfanityFilterMode": "Masked",
    "PunctuationMode": "DictatedAndAutomatic"
  }
}

6. The transcriptions fails for some URL's while passing for others for blobs in the same storage although they are all valid URL’s. The SAS URI in the request is valid till end of the year.
7. I have re-tried the same request multiple times via code and Postman and it fails.

Link to Swagger Page : https://westus.cris.ai/swagger/ui/index

Answer 1

The issue may be due to the audio file size. Please refer the core features for REST API as the REST support only short Audio.