Choose language, dialogue, and range
Choose Timeline → Captions → Edit Captions…, then Generate…. Select Speech language and Dialogue track. The available language state comes from the system speech services; a selectable language is not a guarantee that its required resources are ready. Listen to the intended range first, checking mute and solo states.
Listen to the chosen dialogue first. Generation uses the selected track's edited sound, including cuts, speed, gain, and fades. Mark Sequence In/Out to analyze an excerpt; without marks, the sequence is used within the interface's one-hour limit. Review Caption destination before starting.
Generate a review draft
Click Generate. Follow the status message, or choose Cancel Generation. When results arrive, correct Recognized phrase, Start, and End in sequence seconds. Check names, numbers, specialist words, sentence breaks, and boundaries.
The draft is a proposed transcript, not a finished subtitle track. Automatic speech recognition can mishear clean recordings as well as noisy ones. Review the entire interval, not only the first cue.
Apply the intended captions
Use Apply N Captions after the text and timing are valid. Discard Review abandons the generated review; Generate Again creates a new attempt. New cues use the initial clean style, which can then be reviewed in Captions.
Check the track language and cue timing in the sequence. A language label identifies a track; it does not translate its words. Apply or revert an edited cue before moving to another context. Read editing cues for the explicit draft workflow.
Diagnose empty or unavailable results
Check speech permission, language/resource availability, dialogue-track selection, audible sound, and the range. Silent, muted, or music-only input cannot produce the intended spoken transcript. Try a short clearly spoken interval to narrow the failure.
Use an already corrected subtitle file as another starting point when appropriate, then verify its timing against the current edit. The iOS title and caption guide describes the mobile import/generation menu and retained draft recovery.