post https://api.callr.com/v2.0/audio-files
Upload a new audio file. To upload an audio file, the body should be a
multipart/form-data. If you're sending an application/json body, you can only
specify the name of the new audio file. The content will be empty (the status
property will be set to pending-content). In this scenario, you should use the
POST /audio-files/{sid}/file method to upload the file content.
When sending a multipart/form-data body, the content will be processed
asynchronously. The status property of the resulting 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.