Common Mistakes in Creating Easy Captions

Captioning looks simple until you do a lot of it, at which point the same errors start showing up again and again. The reassuring news is that most caption problems are not exotic; they are a short list of predictable mistakes that almost everyone makes early on. Learn to spot them and your captions jump from amateur to professional without any new equipment or talent, just awareness and a review habit. This guide walks through the most common captioning mistakes, why each one hurts the viewer, and exactly how to fix it.

Want expert help putting this into practice? EasyCaptions can guide you through it.

Trusting auto-captions without review

The most damaging mistake is publishing automatic captions untouched. Speech recognition is impressive but not reliable enough to skip review. It mishears names, confuses homophones like "their" and "there," drops punctuation so sentences run together, and mangles numbers, dates, and technical terms. The result reads as careless at best and misleading at worst. Worse still, the errors tend to cluster exactly where meaning is densest, on the proper nouns and figures a viewer most needs to get right, so a caption that is ninety percent accurate can still fail the viewer at the moments that matter most. Accuracy is not an average; it is a floor.

The fix is a non-negotiable accuracy pass. Play the video and read along with the captions, correcting every error, paying special attention to proper nouns and anything numeric. This single habit eliminates the majority of caption complaints. Auto-generation is a drafting aid, never a finished product, and treating it as final is the error that undermines everything else you do well.

Cramming too much text on screen

Related: easycaptions Best Practices for Professional and Institutional Use.

The second common mistake is overloading captions. Beginners often dump long stretches of speech into a single cue, producing three or four dense lines that cover half the picture and vanish before anyone can finish reading. The viewer is forced to choose between reading the caption and watching the video, and loses both. Captions are supposed to sit gently alongside the picture, not bury it, and a block of text that fills a third of the frame defeats the entire point of a visual medium.

Keep captions disciplined:

• Limit each caption to two lines maximum.
• Aim for roughly 32 to 42 characters per line.
• Split long sentences across multiple cues at natural clause boundaries.
• Give each cue enough time on screen to be read comfortably.

When speech is fast, resist the urge to fit every word into one cue. Break it up, or lightly trim filler, so the text stays inside a readable pace.

Getting the timing wrong

Timing mistakes are subtle but corrosive. Captions that appear a beat after the words are spoken, or that linger long after the speaker has moved on, create a low-level unease that makes the whole video feel off. Even worse are captions that race by too fast to read, which defeats the entire purpose for the viewer relying on them.

Target a comfortable reading speed of around 160 to 180 words per minute, bring captions on as the speaker begins rather than late, and clear them promptly when the line ends. Watch for two other timing errors: captions that flicker because the gap between cues is a fraction of a second, and captions that stretch across a scene cut, lingering awkwardly into a new shot. Ending cues on or near shot changes fixes the latter.

Ignoring non-speech sound

See also: easycaptions - essential steps to mastering captioning.

A mistake that specifically fails deaf and hard-of-hearing viewers is captioning only the dialogue and ignoring everything else. If a phone rings, a door slams, tense music swells, or someone laughs off-screen, and a hearing viewer would notice it, then leaving it out gives the caption user an incomplete and sometimes confusing experience.

Describe the sounds that matter to comprehension, written in brackets like [doorbell rings] or [crowd cheering], and skip the incidental noise that adds nothing. Convey music by its role, such as [suspenseful music], not just [music]. And always identify speakers when it is not obvious who is talking. The test is simple: would a hearing viewer perceive something here that changes their understanding? If so, the caption must carry it.

Formatting and encoding slip-ups

Some mistakes never appear on your own screen and only surface for the viewer. The most common is a character-encoding problem: a file saved in the wrong encoding turns accented letters and curly quotes into garbled symbols for anyone whose setup differs from yours. Saving caption files as UTF-8 prevents this.

Other formatting errors that quietly break captions:

• Exporting the wrong file format for the platform, so the captions never load at all.
• Using the wrong timestamp separator, such as SRT's comma where VTT expects a period.
• Leaving stray blank lines inside a cue, which can split one caption into two broken ones.
• Using all capital letters throughout, which is harder to read than mixed case.

A quick validation and a test upload catch these before your audience does. Never assume a file that looks fine in an editor will display correctly on the destination platform, because the failures are invisible until they reach a viewer whose device, browser, or language settings differ from your own. What renders perfectly on your laptop can arrive as gibberish on someone else's phone.

Skipping the final review in context

The last and most avoidable mistake is not watching the finished video with its captions before publishing. Editing captions in a text-focused editor is not the same as experiencing them in motion, over the picture, at real speed. Problems that are invisible in the editor jump out immediately when you watch the actual video.

Do one final pass with the sound off, putting yourself in the position of the viewer who depends entirely on the text. Anything mistimed, mislabeled, too fast, or missing will announce itself. This five-minute habit catches the errors that slip through every other check. Tools such as EasyCaptions make that review painless by letting you preview captions against the video as you edit, but the discipline of actually looking is yours to keep. Avoid these common mistakes, build in a review step, and your captions will consistently land as clear, accurate, and genuinely useful.