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 27,281 Reputation points MVP

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 18,386 Reputation points

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

Share via

Azure Text to Speech F0 (Free) Tier Limits

Your answer