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Captions, Subtitles and Accessible Video: What Australian Brands Need to Get Right
- Global
- 6 days ago
- 6 min read
Most marketing teams treat captions as a post-production afterthought. Something the social team adds in a scheduling tool the morning a campaign goes live. That habit is now costing brands reach, comprehension and, increasingly, procurement points.
We have been producing video in Sydney for more than 18 years, and accessibility is one of the few areas where doing the right thing and doing the commercially smart thing line up almost perfectly. Accessible video performs better with everyone, not just viewers who are deaf, hard of hearing, blind or have low vision. Here is what marketing managers should actually specify, budget for and check before a video goes out.
What does "accessible video" actually mean?
Accessible video means a viewer can get the full message without relying on any single sense. In practice that comes down to four components: accurate captions, a text transcript, audio description where the visuals carry meaning that the audio does not, and a player that works with a keyboard and screen reader.
Not every video needs all four. A 15 second pre-roll cutdown with on-screen text and no dialogue needs different treatment to a 4 minute case study video with a talking head and data graphics. The point is to make a deliberate decision per asset rather than defaulting to nothing.
Captions or subtitles? They are not the same thing
Captions are for viewers who cannot hear the audio, so they include non-speech information such as [upbeat music], [applause] or [door closes]. Subtitles assume the viewer can hear but not understand the language, so they translate dialogue only.
Marketing teams use the words interchangeably, and that is usually harmless until you brief a vendor. If you ask for subtitles and you needed captions, you will get a file with no sound cues in it, which fails accessibility guidance. Say which one you want.
There is also a difference between open and closed captions. Open captions are burned into the picture and always visible, which is what you want for feeds that autoplay muted. Closed captions sit in a separate file such as an SRT or VTT that the viewer can switch on or off, which is what you want on your website, YouTube and most enterprise video platforms. For a campaign that runs in both places, you usually need both versions of the same asset.
What are the rules in Australia?
In Australia the relevant instrument is the Disability Discrimination Act 1992, which does not name captions specifically but makes it unlawful to discriminate in the provision of goods and services, including online. The practical standard everyone works to is WCAG 2.1 Level AA, published by the W3C, which is what Australian government agencies are required to meet under the Digital Service Standard and what most enterprise and government procurement documents now reference.
Two things follow from that. First, if you sell to government, universities, banks or health organisations, expect accessibility questions in tender and vendor onboarding paperwork, and expect your video assets to be in scope. Second, if you have overseas audiences, the bar is rising elsewhere too: the European Accessibility Act took effect in mid 2025 and applies to commercial digital products and services sold into the EU, and United States requirements under the ADA and Section 508 continue to tighten with staged compliance deadlines through 2027 and 2028.
We are a production company, not your legal advisers, so treat this as orientation rather than advice. But we can tell you what we see in briefs: accessibility requirements are moving from the "nice to have" column into contract schedules.
Does accessibility actually improve performance?
Yes, and the effect is not marginal. Captions help the large share of social video that is watched with the sound off, which is why open captions have become standard practice on pre-roll video for paid social media. Industry research from Verizon and Publicis found viewers were significantly more likely to watch a captioned video to the end, and Wistia's benchmarks have consistently shown captioned video attracting more play time than uncaptioned equivalents.
There is a search benefit too. A transcript published alongside the video gives Google and AI search tools actual text to index, which is the only reliable way for a search engine to know what was said in your explainer video. If you are producing branded content that you want cited or surfaced in AI answers, the transcript is doing more work than the video file.
And there is the plain reach argument. Around one in six Australians lives with hearing loss, according to Hearing Australia. Publishing without captions writes off part of your audience for the sake of a line item.
What to specify in your production brief
Accessibility is far cheaper when it is decided before the shoot rather than retrofitted three weeks after delivery. When we scope a project we ask marketing managers to lock these in early:
Which caption format you need. Burned-in open captions for social, plus an SRT or VTT for web and platform delivery.
Whether you need translated subtitles, and into which languages. This changes the edit, because translated text runs longer than English and needs room in the frame.
A safe area for text. If captions will sit at the bottom of frame, the edit needs to keep lower thirds, logos and legal supers out of that space. Deciding this in the offline edit costs nothing; deciding it after grading and delivery costs a revision round.
Colour contrast on graphics. Thin light grey type on white looks elegant in a deck and disappears on a phone in daylight. This matters for animation especially, where 2D and 3D animation projects often carry the entire message in on-screen text.
Audio description, if visuals carry unique meaning. Product demonstrations, process animations and data visualisations are the usual candidates. Sometimes the cheaper fix is to write the script so the voiceover already describes what is on screen, which removes the need for a separate description track entirely.
A clean transcript as a deliverable. Ask for it in the same delivery package as your masters. It costs almost nothing at that point and it becomes blog content, LinkedIn copy and search fuel.
Can you just use automatic captions?
Automatic captions are a good first pass and a poor final deliverable. Speech recognition has improved enormously, but it still mishandles the exact words that matter most to a brand: product names, executive surnames, technical terminology, acronyms and Australian place names. It also does not annotate non-speech audio, and it rarely gets punctuation and line breaks right.
Our approach is practical. Generate a machine transcript, then have a human correct it against a brand glossary of names, product terms and spellings, and format the lines properly: two lines maximum, roughly 32 to 42 characters per line, each caption on screen long enough to read. Accessibility guidance generally expects 99 percent accuracy, and that last few percent is the human pass. On a typical corporate video the review is under an hour of work.
One more detail worth catching: Australian English spelling. Automatic captioning frequently defaults to United States English, so your video ends up saying "organization" and "color" while your website says "organisation" and "colour". Small thing, visible thing.
Where accessibility fits by video type
Different assets carry different obligations and different upsides.
Pre-roll and paid social: open captions are effectively mandatory, since most of these views are muted.
Case study and testimonial videos: captions plus a transcript. Buyers often skim the transcript instead of watching, and that is a good outcome, not a failure.
Explainer videos and animation: watch contrast and text timing, and consider whether the voiceover can carry the visual information.
Corporate video and training and HR videos: these have the strongest compliance exposure, because internal audiences include employees who may need accommodations and because these assets often sit inside systems that get audited.
Television commercials: captioning for broadcast follows the broadcaster's own delivery specifications, so confirm requirements with your media agency before finalising the master.
The bottom line
Accessible video is not a compliance tax, it is a distribution decision. Accurate captions, a published transcript, considered contrast and audio description where visuals carry meaning will widen your audience, lift completion rates, give search engines and AI tools something to cite, and keep you clear of the accessibility questions that now appear in enterprise procurement. The cost of doing it properly is small when it is planned into the brief, and irritating when it is bolted on afterwards.
If you are commissioning video in Sydney and you are not sure what your assets need, we are happy to walk through your list and tell you where the gaps are. It is usually a shorter conversation than teams expect.
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