Where these features come from
Audio description, subtitle tracks and hearing-impaired audio are created by the broadcaster and carried inside the channel feed. They are not generated by your player and they are not added by a provider.
That single fact explains most of what follows. If a broadcaster transmits a described audio track, it may reach you. If they never made one, nothing at any later stage can produce it. And if the feed was re-encoded on the way, additional tracks are sometimes dropped even though the broadcaster did include them.
So availability varies by channel, by country and by programme, and it is genuinely inconsistent. It is worth checking on the channels you personally care about rather than assuming a general answer.
Audio description
Audio description is a spoken narration of what is happening on screen, added between lines of dialogue for viewers who are blind or partially sighted.
It is carried as an additional audio track on the channel, usually labelled with a language code and something like AD, or occasionally as a separate channel entirely in the line-up. Broadcasters in several countries also run duplicate channels carrying the described version.
To use it, open the audio track selector in your player while the channel is playing — the same menu you would use to switch language — and look for an extra track beyond the main one. If a channel offers only one audio track, description is not present in that feed, and that is the end of it rather than a setting you have missed.
Where a broadcaster runs a separate described channel, searching the channel list for the broadcaster’s name is often more productive than hunting through audio tracks.
Subtitles and hearing support
Two different things travel under similar names, and the distinction matters.
Ordinary subtitles carry dialogue, often for translation. Subtitles for the deaf and hard of hearing, usually labelled SDH or with a hearing-impaired marker, additionally describe sound effects, music and who is speaking. If a channel offers both, the second is considerably more useful for anyone relying on it.
Some broadcasts also carry a dedicated hearing-impaired audio track with dialogue mixed further forward relative to effects and music. It appears in the same audio menu as any other track. Where it exists it works better than any processing your television can apply afterwards.
Our guides on subtitle formats and on audio and subtitle problems cover the technical side, including what to do when a track is listed but will not display.
Making subtitles actually readable
A subtitle track that is present but unreadable is not much use, and this is one area where the player genuinely does help.
Most players allow the text size, colour, and a background or outline to be changed. A solid or semi-opaque background behind the text is usually the single biggest improvement, because white text over a bright scene disappears in a way that no size increase compensates for.
Position matters too. Where a player allows subtitles to be moved, shifting them clear of on-screen graphics such as scoreboards prevents the two overlapping. These settings live in the player rather than in the subscription, so they need setting once per device — worth noting alongside your other configuration, as our guide on backing up a player setup explains.
Getting around the interface
For anyone with limited vision, the channel list itself is often a bigger obstacle than any individual programme.
The most effective change is the same one that helps everybody: cut the list down. A short favourites list of the channels actually watched, with everything else hidden, removes most of the navigation problem at a stroke. Our guide on organising favourites and channel order covers doing it, and some players allow a larger guide layout with fewer channels visible at once, which also increases text size.
Streaming platforms have their own accessibility layers underneath the player — screen readers, magnification, high-contrast and text-size options on Fire TV, Android TV and Apple TV. How well any given IPTV player cooperates with a screen reader varies a great deal, so it is worth testing rather than assuming.
If you are configuring this on somebody else’s behalf, our guide on setting IPTV up for a less technical relative covers the wider job.
The honest limits
It would be easy to imply more here than is true, so plainly: we cannot promise that any particular channel carries audio description, SDH subtitles or a hearing-impaired audio track. That depends on the broadcaster and on the feed, both of which change.
The same applies to consistency. A channel may carry description on some programmes and not others, because the broadcaster describes part of its schedule rather than all of it. Subtitle timing on live programming is produced in real time and is often several seconds behind, which is a property of live subtitling everywhere rather than of streaming.
This is the same position we take on the line-up generally, set out on our page about channels and the guide: we do not promise specific content, because the honest way to find out is to look.
What to check during a trial
- Open the audio track menu on the channels that matter and see what is listed
- Check whether separate described channels exist for your main broadcasters
- Look for SDH or hearing-impaired subtitle tracks, not just ordinary ones
- Set subtitle size and background, and confirm they are readable from your seat
- Test the player with your device’s own screen reader or magnification if you use one
- Check a live programme as well as a recorded one, since subtitle behaviour differs
Doing this during a trial rather than after paying is the whole point, and it takes twenty minutes. Our guide on what to test during a trial covers the rest of the checklist, and the plans page sets out what each option includes once you are satisfied.
Frequently asked questions
Does IPTV support audio description?
It can, where the broadcaster includes it in the feed. Description is carried as an extra audio track, or sometimes as a separate described channel. If a channel offers only one audio track, description is not present in that feed and no setting will produce it.
How do I turn on audio description?
Open the audio track selector in your player during playback — the same menu used for switching language — and look for an additional track, often marked AD. Where a broadcaster runs a separate described channel, look for that in the channel list instead.
What is the difference between subtitles and SDH?
Ordinary subtitles carry dialogue. SDH, or hearing-impaired subtitles, also describe sound effects, music and who is speaking. Where a channel offers both, SDH is considerably more useful for anyone relying on it.
Why are subtitles hard to read on my TV?
Usually because the text has no background. Most players let you add a solid or semi-opaque background and increase the size, which helps far more than size alone, since white text over a bright scene disappears regardless of how large it is.
Why are live subtitles several seconds behind?
Live subtitles are produced in real time as the programme goes out, so a delay of several seconds is normal. It is a property of live subtitling in general rather than something introduced by streaming.