Account and limits

Can I bring my own transcript?

No. Cast transcribes the audio itself, and the transcript has to be its own — every word is tied to a moment in the recording, which is what lets you edit the audio by editing the text.

Every word Cast transcribes is pinned to a moment in the audio, and that anchoring is what lets deleting text delete sound. An imported transcript is text sitting next to the audio with nothing pointing into it, so deleting a sentence would cut nothing. — The anchor is the whole trick — and an imported file has none.

An imported transcript would just be text: without word-level timing bound to your audio, deleting a sentence could not delete the sound of it.

If the transcription got words wrong, fix them in place with Correct or Find & Replace. Re-transcribing is free, so pinning the right language and running it again is often the faster fix.