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Audio to text using whisper API

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Posted on by Community Power Pla... Microsoft Employee

Hi All,

I am trying to upload a mp3 file in manually triggered flow and trying to convert that into text using whisper API, I am able to do that in PowerApps but I am also trying to use http action in power automate but not able to convert, below is the screenshot

Can someone help me here @RezaDorrani @abm

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Community Power Pla... Microsoft Employee on at

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@Nived_Nambiar @ManishSolanki @SudeepGhatakNZ @Expiscornovus can someone please help me?

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Nived_Nambiar 18,136 Super User 2026 Season 1 on at

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Hi @PowerUserSB

Here you are passing filename audio.mp3, should we try to pass content directly and see how it works ?

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Community Power Pla... Microsoft Employee on at

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Hi @Nived_Nambiar
Below is the error message

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Nived_Nambiar 18,136 Super User 2026 Season 1 on at

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Hi @PowerUserSB

you were saying that in power apps it was working, so how the file field in request body is referenced in powerapps.

does that audio was stored somewhere and then filename was specified in the field ?
could u explain that , may be it would help us how to do this

Also if you have documentation of this API for use in postman, share that as well

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Community Power Pla... Microsoft Employee on at

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Hi @Nived_Nambiar
yes the file was uploaded in media then i passed the name of file.
Here is the api reference : https://platform.openai.com/docs/api-reference/audio

video which i referred for creating custom connector in power apps : https://youtu.be/LBYirTVBEe4

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Nived_Nambiar 18,136 Super User 2026 Season 1 on at

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Hi @PowerUserSB

Have your created custom connector for that ?

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Community Power Pla... Microsoft Employee on at

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Hi @Nived_Nambiar
yes I have created by following the reza’s video
but the thing is why http action is not working because custom connector also does an api call only, not sure what is wrong in the body section of http action

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