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Subtitles for the replay. After the webinar ends.
Turn a finished webinar replay into reviewed subtitles. Work from the final edit, check the questions and answers, and publish a separate track for each language.
Apple Silicon · macOS 14.4 or later
01
Finish the replay edit
Remove holding screens and breaks before transcribing.
02
Check the Q&A
Review names, questions and changes of speaker.
03
Publish the replay tracks
Attach reviewed SRT files to a compatible player.

Start after the live session
Polyglot works with recorded media; it does not provide live webinar captions or join a meeting. Use the recording once your replay edit is complete. Trim the waiting room, technical interruptions and any sections you are not publishing before importing the file. Otherwise subtitles generated from the original session will drift against the edited replay.
Keep the final video distinct from the raw recording and confirm which participant contributions may be shared. A question that was appropriate inside a private session may need a different publishing decision for a public replay. Make that decision in the edit, then use the same approved file for transcription and distribution.
Read the questions as carefully as the answers
Create the source subtitle draft locally on your Mac. Webinar audio often changes between a close microphone, a remote guest and audience questions read from chat. Review each transition. Check names, product references, abbreviations and numerical answers against the recording rather than assuming a fluent-looking sentence is accurate.
For a Q&A example, make sure a subtitle does not turn “Can existing customers use this?” into a statement that everyone can. Polyglot does not automatically identify speakers. If the finished captions need speaker labels or additional context, supply and review those in an appropriate caption workflow. Do not attribute an answer to a guest merely because their face remains on screen.
Keep translations tied to the reviewed source
Check the original text before approving other languages. Give a fluent reviewer context for shorthand such as “the previous plan” or “next quarter,” especially when a replay may be watched long after the event. Preserve what the speaker actually said; use surrounding page copy for updates rather than quietly rewriting the historical recording through its subtitles.
Export one or all completed languages as UTF-8 SRT. Name files with the event, replay edit and language. If you later cut a promotional excerpt, prepare subtitles for that new clip separately. Its start time and pacing differ from the full session, and Polyglot does not automatically retime an exported full-length subtitle file for a shorter edit.
Test the final replay from beginning to end
Attach the SRT to a compatible hosting platform. YouTube’s official instructions describe uploading a subtitle file with timing; other players have their own requirements. Polyglot does not upload the track for you. Confirm the language, preview the opening, and inspect a late Q&A answer to catch a wrong-edit mismatch.
Check a passage with fast discussion and a passage with an important sound cue. Complete captions can require meaningful non-speech information beyond the recognized words. Keep the source project and your approved exports so a misspelled guest name can be corrected later. When replacing the replay, replace its caption tracks together and verify the new public player.
Sources & further reading
YouTube: upload subtitles with timing
W3C: what prerecorded captions need to convey
Published by Polyglot using an AI-assisted editorial workflow. How we prepare and update our guides.
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Try it on your Mac.
Create a subtitle draft, review it alongside your recording and export SRT.
Download PolyglotApple Silicon · macOS 14.4 or later