We have settled on an editing protocol for communication between our player/transcript editor and the service that stores transcripts and videos. The document in PDF format is attached below:
SpokenMedia Editing Protocol (PDF)
The protocol conforms to WC3’s proposed Timed Text Markup Language (TTML) 1.0 specification.[1] We selected this specification because our primary data is time-aligned text and this specification is a standard used by our collaborators.