Azure Text to Speech F0 (Free) Tier Limits

Question

Azure Text to Speech F0 (Free) Tier Limits

Rob Enriquez 0

Hi, I have the F0 (Free) Tier. I send a request to TTS service and get the blendshape data and voice. When I make a request, the first 4 get a response. The 5th one does not return a response anymore. If i restart my server, I can make another 4 request and will get back a response. My question is, does the F0 Tier have this limit? thanks in advance.

Vinodh247-1375 43,911 Reputation points Volunteer Moderator

2024-05-05T06:09:39.14+00:00

you can make 20 transactions per 60 seconds in F0 tier.

https://learn.microsoft.com/en-us/azure/ai-services/speech-service/speech-services-quotas-and-limits#text-to-speech-quotas-and-limits-per-resource

but the free tier usually has a very low concurrent request limit, see below

https://learn.microsoft.com/en-us/answers/questions/738983/error-429-on-audio-export-from-azure-text-to-speec
VasaviLankipalle-MSFT 18,741 Reputation points Moderator

2024-05-06T21:35:23.99+00:00

Hello @Rob Enriquez , Thanks for using Microsoft Q&A Platform.

Did you get a chance to check the above response?
Rob Enriquez 0 Reputation points

2024-05-06T21:41:52.48+00:00

Hi yes I did, but I still haven’t figured out my issue. Is there an example project available to test the TTS? Like a browser based project where you send text and echoes back the answer? I’m trying to figure out if it it’s an azure tier limitation or other limitations (eg browser, SSE, etc). Thank you

Your answer

Vinodh247-1375 43,911 Reputation points Volunteer Moderator

2024-05-05T06:09:39.14+00:00

you can make 20 transactions per 60 seconds in F0 tier.

https://learn.microsoft.com/en-us/azure/ai-services/speech-service/speech-services-quotas-and-limits#text-to-speech-quotas-and-limits-per-resource

but the free tier usually has a very low concurrent request limit, see below

https://learn.microsoft.com/en-us/answers/questions/738983/error-429-on-audio-export-from-azure-text-to-speec
VasaviLankipalle-MSFT 18,741 Reputation points Moderator

2024-05-06T21:35:23.99+00:00

Hello @Rob Enriquez , Thanks for using Microsoft Q&A Platform.

Did you get a chance to check the above response?
Rob Enriquez 0 Reputation points

2024-05-06T21:41:52.48+00:00

Hi yes I did, but I still haven’t figured out my issue. Is there an example project available to test the TTS? Like a browser based project where you send text and echoes back the answer? I’m trying to figure out if it it’s an azure tier limitation or other limitations (eg browser, SSE, etc). Thank you