put
https://api.callr.com/v2.0/audio-files//file
Update the content of an existing audio file. The content will be processed
asynchronously. The status property of the updated audio file will transition
through the following stages:
pending-conversionprocessing- Finally, it will be either
readyorerror
The supported formats are audio/flac, audio/mpeg, audio/mp4, audio/ogg,
audio/wav.
You can use webhooks to receive updates on the status.