What are subtitles?
Subtitles are short blocks of text that reproduce the spoken language in video material, so you can read what is being said while you watch the video. They normally follow the pace of speech and the rhythm of the edit, so the text appears for two to seven seconds at a time. You'll usually find subtitles at the bottom of the frame, and they can reproduce the dialogue in the same language or as a translation from another. In other words, subtitles make video content more accessible and easier to understand across languages and audiences.
Although subtitles are traditionally associated with film and TV, they have also taken on a clear role in digital communication. When you produce video for social media or advertising, subtitles matter a great deal, because many people watch video without sound. That way, subtitles can make sure your message still lands – even when the user is sitting on the train or scrolling on their phone with the sound off.
How do you use subtitles?
You use subtitles to make video content more accessible and engaging. In their simplest form, they just follow the dialogue, but you can also include descriptions of sounds and music for viewers with hearing loss. You can create them manually, writing the text and adjusting the timings yourself, or you can use automatic tools that generate subtitles with speech recognition. It's important that the text stays on screen long enough to be read at a natural pace – typically three to six seconds, depending on the length.
If you work with video marketing, you can think of subtitles as part of your overall content production. When you edit a video for social media, for example, you can build subtitles in using your editing software or add them as separate files in formats such as SRT or VTT. This makes it easier to reuse the video across platforms, where each channel has its own preferences for format and display.
Why you should use subtitles
Subtitles aren't just a question of accessibility – they affect how your content is understood and remembered. Many people watch video without sound because they're in situations where sound isn't practical. If your video only communicates visually, you lose a large part of the message. With subtitles, you keep the context and increase the likelihood that the viewer watches the video to the end.
At the same time, subtitles help anchor your message in language. When the user both sees and reads the same message, it improves understanding and recall of key points. This mechanism is particularly relevant when you work with branding or campaigns, where recognition of tone, name and product is crucial. Even short ad clips with subtitles can create more effective communication this way, because you actively combine sound, image and text.
What types and variants are there?
There are basically two types of subtitles: translated and transcribed. Translated subtitles render the meaning from one language into another, e.g. from English into Danish. Transcribed subtitles reproduce what is said in the original language, and they often contain extra information for viewers with hearing loss – such as descriptions of music or background sounds.
As a video producer or content manager, you can combine the two formats so the video reaches both international users and people who are hard of hearing. When you publish content on social media, you can even consider adding several language versions if your audience spans several markets. Naturally, this requires you to keep track of translations and file formats, but the investment pays off in the form of greater reach and a better user experience.
How do you use subtitles in practice?
The most practical approach is to create your subtitles as text files that are synchronised with the video. Popular formats such as SRT and VTT are widely used on social media platforms and video platforms such as YouTube or Vimeo. You can create your files in a simple text editor, where each block of text gets a timestamp, or you can use dedicated platforms with automatic generation and editing.
When you work strategically with content marketing, you can link the subtitling process to SEO and performance analysis. For example, you can work keywords into the subtitles on YouTube, so the platform more easily understands the context of your video. The same applies to paid social, where clear subtitles can increase the stop rate in the news feed and secure a better ROAS, because more people take in the message.
An example of how you can use subtitles in your marketing:
What should you watch out for?
Although automatic tools give quick results, good subtitling still requires human editing. You need to make sure the text is grammatically correct and that it fits the spoken expressions and tone of voice. Small adjustments – such as pauses, emphasis and choice of words – make a big difference to how the video comes across. You should also check readability: choose a clear typeface, avoid characters that are too small, and make sure there's contrast with the background.
Finally, you should consider the implications for language learning if you produce content in several languages. Viewers learn best when subtitles match the spoken language, and poor timing or translations can actually harm understanding. That's why you should test your subtitles on representative users before you roll the video out widely.
In other words, when you work professionally with video and digital marketing, subtitles become part of the bigger picture. They support both your communication and your strategy for SEO, social media and brand identity – and they make it easier to reach your whole audience, wherever and however they watch your content.
