How to Caption an IRL Stream Replay for YouTube

To caption an IRL replay for YouTube, finish the video edit first. Then choose whether captions should be part of the picture or a separate track viewers can turn on and off. VISP Typography can transcribe an uploaded video, let you edit word-level captions, and export a captioned MP4. For a separate YouTube caption track, create a timed file such as SRT and add it in YouTube Studio.

That choice matters when a two-hour Twitch or Kick walk becomes a fifteen-minute YouTube video. You may want to correct a street name, translate a conversation, or let viewers hide the text. Do the caption work against the final edit, not the original broadcast timeline. This guide covers replay uploads, not live YouTube caption setup.

Choose burned-in captions or a YouTube track

Burned-in captions are pixels in the video. Viewers cannot hide them or select another language track. A separate caption track stays independent of the picture, so viewers can enable it and YouTube can associate it with a language.

VISP Typography creates a captioned MP4. It does not export an SRT file. Choose it when you want styled text permanently visible in the finished video. Choose a timed subtitle file when you need YouTube's player controls or separate language tracks. You can use both, but turn off one layer while reviewing so duplicate text does not obscure the picture.

VISP's phone live subtitles are also burned into the camera image. They remain in any recording made from that source. The live-caption guide explains that tradeoff; VISP's media architecture documentation describes how the camera feed reaches OBS.

Finish the video edit first

Make the version you intend to publish. Remove waiting screens, choose the walk segments, set the final audio mix, and complete any speed changes. Export the video and use that exact version as the reference for captions.

For example, a guest starts speaking at 12:00 in the stream recording. You remove the first two minutes and another thirty-second pause before the guest. In the replay, that speech starts at 09:30. Captions timed to the original recording now arrive two and a half minutes late. One global offset will not fix later cuts or speed changes.

Keep the recording, editing project, final video, and any caption file together. Use matching version names, such as harbor-walk-v3.mp4 and harbor-walk-v3.en.srt. This is a simple way to avoid pairing a caption file with the wrong export.

Listen to the exported audio rather than relying on the editor preview. Check that your voice, guests, and studio commentary are present. If speech is doubled or a microphone is delayed, use the phone audio troubleshooting guide before the next session. Caption edits cannot fix the sound in the video.

Create a captioned MP4 with VISP Typography

VISP Typography accepts MP4, QuickTime MOV, and WebM uploads. It creates word-level captions in English or Finnish. You can correct words and their start and end times, choose a caption style, adjust its position, and export an H.264 MP4 with the captions rendered into the video.

Check the framing before choosing this route: the current Typography export reframes video to vertical 1080 × 1920 (9:16). A landscape replay will be cropped. If you need to preserve the original widescreen frame, use an editor that keeps that aspect ratio and add a separate timed caption track in YouTube Studio instead.

1. Finish and export the replay from your video editor.
2. Open VISP Typography and sign in.
3. Upload the final MP4, MOV, or WebM file and select the spoken language.
4. Review the generated transcript against the video. Correct names and mistakes, then check word timing around edits.
5. Adjust the style and position so the text stays readable without covering faces, signs, or important parts of the scene.
6. Export the MP4 and watch the exported file from beginning to end.

Speech recognition is a starting point, not a proofread transcript. Listen for street names, guest names, channel names, negatives, numbers, and overlapping voices. Do not fill in words that traffic or wind made impossible to hear. Check the whole video at normal speed after editing. A transcript can look correct while a word appears too early, stays on screen through a cut, or misses a quiet sentence. Fix the text and timing in the editor, then export again. The MP4 keeps the selected style in the picture, so review it on a small screen and make sure the captions remain legible over both bright streets and dark scenes. Keep a clean copy of the original export so you can change the caption design later without stacking another caption layer on top.

Add a separate caption track in YouTube Studio

If viewers should control captions separately from the picture, prepare a timed caption file against the final export. YouTube supports basic SubRip .srt files as plain UTF-8 text; SRT styling markup is not recognized. Check YouTube's supported caption formats if your editor offers several export choices.

Follow YouTube's caption upload instructions:

1. Open YouTube Studio and select Subtitles.
2. Select the finished video and add the intended language.
3. Choose to add a caption file for that language.
4. Choose Upload file, then With timing for a timed SRT file.
5. Select the file and save it.

If you use automatic captions as a draft, review them before publishing. YouTube notes that background noise, overlapping speech, and poor sound can affect recognition. It generates new automatic captions for a completed live replay through its VOD process; those captions may differ from the live captions. See YouTube's automatic-caption guidance.

Review every cut and the final export

Watch the opening with captions enabled. Confirm the first sentence appears with the first audible words, not during a title card or waiting screen. Then check the passages immediately after each cut, plus sections where you changed speed or replaced audio.

If captions are early or late by the same amount throughout, inspect the starting offset. If timing matches at the beginning and fails after a cut, compare the caption file with the edit version. If the error grows during an unchanged section, inspect how the timings were generated. Avoid nudging lines one by one until you know which timing problem you have.

Check the last spoken sentence too. Watch a representative passage on a phone at normal speed and once with sound off. Confirm the words are readable and the speaker is clear. For a separate YouTube track, turn captions off and confirm only the intended permanent graphics remain. For a burned-in export, check that no old live overlay creates a second set of words.

Plan the next recording for reuse

If you regularly turn streams into videos, decide how you will record before the next broadcast. A phone subtitle overlay is part of that camera picture. A clean replay needs a recording without that overlay; recording the same captioned source elsewhere will not remove it.

Use the VISP phone setup documentation to prepare the camera feed. For edited videos, try VISP Typography with a short recording first, then review the exported MP4 before captioning a full afternoon of IRL footage.