How to Check AI Captions Before Delivering Client Videos
· Ty Turner
To check AI-generated captions, listen to the finished video while reading every caption, correct words that change the meaning, verify names and numbers, then review timing and readability in the final player. Treat the automatic transcript as a first draft. A successful transcription job does not mean the captions are ready for a client.
This workflow is for interviews, customer testimonials, training clips, and business videos. It separates checking the words from checking the viewing experience, so a polished caption style does not hide an incorrect statement.
Why automatic captions still need a human review
YouTube says automatic captions can misrepresent speech because of accents, dialects, mispronunciations, or background noise, and advises creators to review and correct them. Its documentation also identifies overlapping speech as one reason automatic captioning may struggle. A familiar brand name or a quiet word can matter more to the client than how many other words the system got right.
Source: YouTube Help, Use automatic captioning — https://support.google.com/youtube/answer/6373554?hl=en
Imagine a fictional installer saying, “We do not remove the existing frame.” If the captions drop “not,” the video now gives the viewer the opposite instruction. Spellcheck will not catch that problem: both sentences are grammatical. The reference is the recorded speech, checked in context.
1. Start from the correct edit and delivery requirements
Identify the exact video version you are captioning. If the editor later removes a sentence or changes the opening, captions made for the previous cut may no longer match. Keep the video filename and caption filename aligned, and repeat the relevant checks after any timing change.
Ask where the video will appear and what the recipient needs: a caption file, permanently visible text, or both. Closed captions can be turned on or off in a supporting player; open captions are always visible. W3C's caption guidance also explains that captions include meaningful non-speech audio and speaker identification when needed to understand the content. Decorative text highlighting a few keywords is not necessarily a complete caption track.
Source: W3C Web Accessibility Initiative, Captions/Subtitles — https://www.w3.org/WAI/media/av/captions/
Write down the language, intended platforms, aspect ratios, and who approves terminology. Do not assume that an animated vertical-video treatment also meets the client's needs for a training portal. Check the receiving platform's current supported caption formats before promising a specific file.
2. Build a short terminology sheet
Ask for the correct spelling of people's names, company names, product names, and abbreviations before reviewing. Include the terms actually used in the video rather than pasting an entire brand manual into the caption tool. Record an approved reference beside any unusual spelling.
Make a separate checklist for quantities, dates, prices, units, and negations. For a product demonstration, “fifteen” versus “fifty” could change an instruction. For a testimonial, a missing “not” could reverse the customer's opinion. These items deserve deliberate listening, even when the caption sentence looks plausible.
Confirm spelling without silently changing what the speaker said. If the recording contains a factual error, flag it for the client and editor. Correcting only the caption would leave two conflicting versions of the message: one in the audio and one on screen.
3. Generate a draft, then check it against the audio
Use the approved speech-to-text tool in your editing or publishing workflow. Adobe's current Premiere documentation describes generating a transcript and creating captions from it. That provides a starting point; the review steps below apply regardless of which tool creates the draft.
Source: Adobe Premiere Help, Auto transcribe video using Speech to Text — https://helpx.adobe.com/premiere/desktop/add-text-images/insert-captions/auto-transcribe-video-using-speech-to-text.html
Play the finished edit with headphones and read along. Pause at uncertain words, replay the surrounding sentence, and check the original recording if needed. Do not fill an unclear gap with whatever seems most likely. Mark it for a decision, or use the project's agreed treatment for unintelligible speech when the words cannot be recovered.
Review the whole video, not just a sample. Pay particular attention to the first and last words of edited sentences, quiet endings, interruptions, and sections under music. An accurate opening does not establish that the rest of the track is correct.
Keep a correction log with four fields: timestamp, draft wording, verified wording, and status. For example: “00:24 — North Land — Northline — spelling confirmed with client.” This fictional example shows the record format; it is not evidence from a real project.
4. Make a separate timing and readability pass
Once the wording is accurate, watch at normal speed. Check that each caption arrives with the corresponding speech and stays long enough to read without lingering into an unrelated statement. Split long passages into meaningful phrases. Avoid a line break that separates a person's first and last name when a clearer arrangement is possible.
Check the actual delivery crop. Text that looks comfortable in a horizontal preview can cover a face, product label, or demonstration in a vertical version. Look for collisions with lower thirds and platform controls. Use the intended player or a realistic preview rather than relying only on the editing application's canvas.
Choose readable size and contrast, and check bright as well as dark scenes. A style that works over a dark interview background can disappear over a white wall. Treat readability as a property of the whole video, not a setting established by one attractive frame.
For projects with a required caption specification, follow that specification for line length, timing, and placement. There is no single font size or caption position that works for every player, device, and aspect ratio.
5. Give the client a focused review request
Send the exact version and explain what needs confirmation. Try: “Please check names, product terminology, quantities, and any statement that needs a factual correction. Add the timestamp and requested wording. If the spoken statement itself is wrong, flag it so we can resolve the audio and picture as well.”
Separate unresolved factual questions from styling preferences. Record which version was approved, then use the same record when preparing the final delivery. If an edit is requested, revisit the affected caption timing before exporting again.
Related workflow: Client Video Review Workflow: From First Cut to Approval — https://flashfilmacademy.com/news/client-video-review-workflow
6. Test the delivered file and the published player
For a separate caption file, import it into the destination player and check the selected language, synchronization, punctuation, and beginning and ending. For permanently visible captions, watch the exported video itself. A correct editing timeline does not prove that the exported file contains the intended text.
After upload, check that the intended caption track is available and selected when captions are enabled. Look for competing automatic tracks or a double display of player captions over burned-in text. Check the video on a phone as well as a larger screen when both are expected viewing contexts.
Include the approved video, the matching caption file if requested, and a short delivery note identifying language and version. Keep an editable source so a corrected name does not require rebuilding the entire job from scratch.
Frequently asked questions
Can I let AI proofread its own transcript?
You can use it to flag inconsistent spelling or suspicious passages, but that is not verification against the recording. Another plausible rewrite can introduce new errors. Keep a person responsible for listening and resolving uncertain words before delivery.
Should captions fix the speaker's grammar?
Agree on the editorial approach, and preserve meaning and tone. Do not turn a hesitant answer into a stronger promise or remove a qualifying word because the sentence reads more smoothly. If substantial rewriting is needed, resolve it as an editorial change with the client.
Is a translated caption track ready once the original is checked?
No. The translation needs its own review for meaning, terminology, timing, and readability by someone competent in the target language. A correct source transcript is useful input; it does not validate the translated result.
Use a repeatable caption handoff
Before your next delivery, confirm five things: the right edit, verified wording, readable timing and placement, resolved client questions, and playback in the destination. Save that checklist with the project so captions receive the same deliberate review as picture and sound.
Bring a caption workflow question to the FlashFilm Academy community. Describe the type of video and the step that causes trouble, using a fictional or sanitized example instead of confidential client material. Build a production process that makes the finished message easier to understand.
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