Workout subtitles. Keep effort, rest and options distinct.

Keep instructions aligned with the interval

For a recorded workout you own or are authorized to caption, Polyglot can transcribe the instructor’s speech locally on Mac and export reviewed subtitles. The useful review connects each spoken instruction to the current state of the video: preparation, effort, rest, a side change or an offered alternative.

Use the instructor-approved final recording. Permission should cover the trainer, participants, music and included footage. Resolve excluded participant information in the video before making public tracks. The instructor remains responsible for the routine and audience guidance; transcription does not assess movement, exercise suitability or safety.

Write down the interval transitions

Make a short ledger of the moments where the viewer is asked to start, stop, switch sides or choose an option. Compare the audio with any visible timer or exercise label. A timer overlay and a subtitle are separate elements: one may be wrong even when the other looks correct. Do not add a new countdown simply because the video contains music.

This fictional review example concerns wording and timing only. It is not a workout prescription.

Illustrative interval ledger
Video: class-A-v04.mp4

01:20: effort ends
01:21: rest instruction
01:35: next setup begins

Heard: “You can keep both
feet on the floor.”
Reject: “Keep both feet
off the floor.”

Check the offered option
with the instructor.

Keep alternatives and corrections intact

Review left and right references, changes of position, repetition counts and instructions that offer an easier option. Preserve the difference between “you can” and “you must”. If the instructor says one thing while demonstrating another, ask the instructor to resolve the recording rather than silently rewriting its captions.

The NHS describes its fitness video collection as instructor-led. This guide likewise keeps exercise decisions with the instructor; it does not provide a new routine or medical advice. A silent movement demonstration may need separately prepared description, as W3C’s media guidance distinguishes visual information from the audio represented by captions.

Where a beep or spoken countdown signals a transition, have a person verify it. Background music must not cause invented speech or obscure an important correction. Translations need review by someone who understands both the language and the instructor’s intended cues. Polyglot does not identify exercises, evaluate form or verify a routine’s safety.

Inspect the timer, body and captions together

Load the final video and exported track in the intended player. Watch the ends of intervals, rest periods and side changes, not just the opening explanation. Check that a cue does not continue into the next state in a misleading way. If the spoken timing is wrong, fix the instruction rather than relying on a caption-only correction.

At phone size, inspect whether the caption area covers the relevant body position, visible timer or alternative demonstration. Caption positioning depends on the destination; separate SRT output does not guarantee a particular screen location. Use an appropriate external video editor if embedded captions are required, then review the rendered result.

Deliver a matched video revision, approved language tracks and interval ledger. After a shorter edit or speed change, recheck every transition and the instructor’s options. Keep any unresolved timing or instruction conflict out of the published version. A successfully uploaded subtitle file is only one part of accepting the class recording.

Keep exploring.