Azure speech to text suddenly stopped working for publicly signed S3 url

Hi Deepti Rajput

The error "Authentication failed for recordings URI" indicates that there may be issues with the accessibility or permissions of the audio files you are trying to transcribe. While you mentioned that the URL is publicly accessible, the Azure Speech service has specific requirements for accessing audio files stored outside of Azure.

For batch transcription, audio files stored outside of Azure must be accessible via a public URI that does not require authentication or interactive scripts. If the service was previously working and has suddenly stopped, it could be due to changes in the accessibility of the files or potential updates in the Azure service that affect how external URLs are handled.

Additionally, if your Speech service was deleted and you created a new one, ensure that all configurations and permissions are correctly set up for the new service. It's also worth noting that the batch transcription service supports audio files stored in Azure Blob storage through specific mechanisms like Trusted Azure services security or Shared Access Signature (SAS) URI.

Kindly refer below link: services-security-mechanism

Thank you.

Hi Deepti Rajput

Following up to see if the above answer was helpful.

Thank you.

Hi @Saideep Anchuri

I am afraid it did not help me at all. As this code has been running from past one year on production, all setup is done correctly. I have double checked it. Today the same request API starting the transcription and hanging on "running" state, even for 2 seconds audio it is running forever.

Hi Deepti Rajput

Here are some steps:

1. If there are network problems, it could lead to timeouts or hanging requests. Ensure that your network connection is stable.
2. Make sure that the audio data being sent is valid and in a supported format. If the audio data is corrupted or not in the expected format,
3. Sometimes, the Azure services may experience outages or issues. You can check the Azure status page to see if there are any ongoing issues with the Speech service.
4. If too many requests are being sent, the API might be throttling them, causing indefinite hangs. Looking into request limits and quotas could help rule this out.
5. Ensure that your authorization token is valid and that you are using the correct region endpoint for your requests.

Kindly refer below link: https://learn.microsoft.com/en-us/azure/ai-services/speech-service/troubleshooting?tabs=powershell#authentication-failed

Thank You.

Good day @Saideep Anchuri , I am also experiencing this error starting today. Upon troubleshooting, I have found this error is occurring with the Speech Studio environment itself (therefore, not caused by our app). Additional info from Speech Studio error:

DownloadRecordingsUrisAuthenticationError: Reason DownloadRecordingsUrisAuthenticationError, Details: Authentication failure when downloading the recording URI. StatusCode: AuthenticationFailed. (JobId REDACTED).