Lost in fast dialogue and flickering subtitles? Here is how to learn English with videos: turn on English captions, watch short clips, and replay the lines you missed. For vocabulary, studies point to English captions over your own-language subtitles.
This page is one part of the wider question of how do people learn a second language.
| Item | Value |
|---|---|
| Learners in the subtitle experiment | 76 intermediate-to-advanced Chinese learners of English |
| Video watched | 23 minutes of a BBC documentary |
| Target vocabulary words in that video | 17 |
| English captions: eyes on an unfamiliar word as it was spoken | 60% of the time |
| Bilingual subtitles: written English line skipped | Over 51% of the time |
These figures come from a case study on the SR Research website, with background from an August 2023 post on the 3Play Media blog. Figures can change, so check the source before you rely on them.
What the research says about learning from videos
The most useful evidence comes from a subtitle experiment by Dr. Andi Wang, summarised in a case study from the eye-tracking company SR Research. It followed 76 intermediate-to-advanced Chinese learners of English. They watched 23 minutes of the BBC documentary Animal Odd Couples, which contained 17 target vocabulary words.
Viewers were divided into three groups: English captions, Chinese subtitles, or both together. An eye tracker then showed whether each viewer’s eyes reached an unfamiliar word as it was spoken, before it, after it, or never.
The type of subtitle changed how people processed the audio:
- English captions: viewers looked at unfamiliar words at the moment they were spoken 60% of the time, far more than in any other group.
- Chinese subtitles: viewers frequently read ahead or skipped words entirely, using their own language as a fast lane to the plot.
- Bilingual subtitles: viewers spent most of their effort matching the Chinese translation to the English audio and skipped the written English line over 51% of the time.
Other studies described by 3Play Media point the same way. In 2009, a study with Dutch learners found that English captions led to higher scores on aural word recognition, while Dutch subtitles led to lower ones. In 2016, intermediate Spanish learners of English watched a television episode with English, Spanish, or no subtitles, and the English-subtitle group improved its listening significantly more than the other two.
Captions versus subtitles: what the words mean
People use the two words loosely, but they describe different things. Knowing the difference makes it easier to pick the right setting on a streaming app.
- Captions are time-synchronised text in the same language as the spoken audio.
- Subtitles are time-synchronised text that translates the spoken audio into another language.
- Closed captions are captions that can be turned on and off.
For learning English from English video, you usually want English captions. Many apps label these “English” or “English CC” in the subtitle menu.
Which subtitles should you choose?
The answer depends on what you want from the video. The SR Research case study puts it plainly: if the goal is simply to enjoy a foreign English film, native subtitles work great, but if you want to expand your vocabulary, English captions are best.
- Just enjoying the story: subtitles in your own language are fine, but expect to pick up less vocabulary.
- Building vocabulary and listening: use English captions so the written word and the spoken sound arrive together.
- Tempted by both languages at once: be careful, because the study found viewers spent their effort on the translation and often skipped the English line.
Captions can also keep you engaged when the audio is hard. According to 3Play Media, even if a viewer cannot fully understand what they are reading, captions can provide helpful context and encourage them to stay with the video.
Why reading slightly ahead can help
You might assume perfect synchronisation is the gold standard. The experiment found something different: viewers who read captions slightly ahead of the audio achieved higher vocabulary recognition scores.
The author’s explanation is that proficient learners scan upcoming text to build a quick mental framework. When the audio arrives a split second later, it confirms what they just read and strengthens the memory link.
Treat this with care. The participants were intermediate-to-advanced learners, so the finding fits that level best, and it comes from one study of one group of learners.
A simple routine for each video
Videos get overwhelming when you try to understand everything at once. A small, repeatable routine keeps you from getting lost.
- Pick a short clip you actually enjoy, such as a documentary segment or a scene from a show.
- Watch it once with English captions on, keeping your eyes on the text as the words are spoken.
- Pause when an unfamiliar word appears and write down the whole sentence, not just the word.
- Replay that line and say it aloud, copying the speaker’s rhythm.
- Watch the clip again, and if you feel comfortable, let your eyes move slightly ahead of the speaker.
- Later, turn the captions off and see how much more you catch by ear.
Videos work best as one part of a plan, and the guide on how to learn english as an adult is a good next stop for building that plan. If you enjoy music clips, the page on learning english with songs shows another way to link sound and written words.
Accents and dialects: let captions do the heavy lifting
English sounds very different from one region to the next. According to 3Play Media, adding closed captions to videos with Scottish and Australian actors speaking in native accents and dialects helped the Dutch students identify the words spoken.
The same post reports that watching those videos with Dutch subtitles diminished the students’ success in word recognition. If a speaker is hard to follow, switch on English captions rather than translated ones, then replay the line.
Frequently asked questions
Should I use subtitles in my own language?
Show answer
They are fine for enjoying a film, according to the SR Research case study. If your goal is vocabulary, the same source says English captions are best.
Do captions help if I cannot understand everything?
Show answer
Yes, they can. 3Play Media says that even when a viewer cannot fully understand the text, captions give helpful context and encourage them to stay engaged with the video.
Are captions and subtitles the same thing?
Show answer
No. Captions are text in the same language as the audio, while subtitles translate the audio into another language.
Is it better to watch with no subtitles at all?
Show answer
In the 2016 study of Spanish learners described by 3Play Media, the English-subtitle group improved its listening skills significantly more than the group with no subtitles. Captions on first, then off later, is a sensible way to use both.
