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When script audio is uploaded, async processing flows are triggered for the script audio.

Check the status of the asset to make sure the processing is completed before creating a video using the script audio asset ID, as any attempts to generate a video with that asset will fail until those async processing flows are completed.

Use the Get user media asset endpoint to check on the status of an uploaded asset.

If you want to use your own text-to-speech engine instead of the one provided by Synthesia, upload generated audio and use it instead of a script when creating Synthesia videos.

RAW_BODY

file

The mp3 file to upload.

``200 200

object

id

string

``400 400

xxxxxxxxxx

curl --request POST \

--url https://upload.api.synthesia.io/v2/scriptAudio \

--header 'accept: application/json' \

--header 'content-type: application/json'

xxxxxxxxxx

{

"id": "ac1ea9ed-1337-4969-a9fe-XXXXXX"
}