How to Turn on Closed Captions and SDH on iPhone, iPad, and Mac - MacRumors
Skip to Content

How to Turn on Closed Captions and SDH on iPhone, iPad, and Mac

by

This article explains how to turn on closed captions and subtitles for the Deaf or Hard of Hearing on Apple devices. Keep reading to learn how it works.

appletvplus
The terms "closed captions" and "subtitles" are sometimes used interchangeably, but they’re actually designed for two different audiences. Subtitles offer a text alternative for spoken dialogue in video, while closed captions not only show text when someone's speaking, but also describe background noises and other audio cues that need describing.

In other words, subtitles are for viewers who can hear the audio, but need the dialogue provided in text form, whereas closed captions are for viewers who can't hear the audio at all and need a text description of everything that is audible in a video.

Meanwhile, subtitles for the Deaf or Hard of Hearing (SDH) combines both these features. SDH are intended for viewers who are both Deaf or Hard of Hearing and do not understand the language spoken in the video. So if a video is in another language that the viewer doesn't understand, SDH will translate the language while also including descriptions of other audible events.

How to Turn on Closed Captions or SDH on iPhone and iPad

  1. Launch the Settings app on your iOS device.
  2. Scroll down and tap Accessibility.
  3. Under the "Hearing" section, tap Subtitles & Captioning.
  4. Toggle the switch next to Closed Captions & SDH so that it's in the green ON position.settings

The last menu also includes options for you to customize captions and subtitles.

How to Turn on Closed Captions or SDH on Mac

  1. On your Mac, click the Apple symbol in the menu bar, top-left corner of the screen, and select System Preferences....
    apple menu system preferences

  2. Click the Accessibility preference pane.
    sys-prefs

  3. Scroll down the sidebar and click Captions, then click the checkbox next to Prefer closed captions and SDH.
    sys-prefs

Note that you can customize captions and subtitles by choosing from the options shown on the last screen above.

Popular Stories

8 CarPlay Features in iOS 27 Feature

Which iOS 27 CarPlay Features Actually Work in Your Car?

Thursday September 17, 2026 4:17 am PDT by
In iOS 27, available now, CarPlay gets its biggest update in years, but some features depend on what type of car you have rather than your iPhone model. Some of the biggest additions won't do anything in the vast majority of vehicles on the road today. Here's how the new features pan out. Works in Any CarPlay Vehicle Custom widgets: In iOS 27, CarPlay is no longer limited to Apple's handful ...
Apple Watch New Charging Puck

Here's Why a New Apple Watch Charging Puck Was Just Released

Wednesday September 16, 2026 8:53 am PDT by
The new Apple Watch Series 12 and Apple Watch Ultra 4 have hardware changes that allow for faster charging, but you will need to use the new version of the Apple Watch Magnetic Fast Charger included in the box in order to achieve this boost. If you need extra ones for your own charging stands or travel or so forth, Apple released the new version of the charger on its online store last week, with...
ios272anniversary

iOS 27.2 Could Save Your Marriage

Wednesday September 16, 2026 1:32 pm PDT by
The iOS 27.2 beta that Apple released today adds a feature that reminds you it's your anniversary when you call someone, as long as you've added the date in the Contacts app. On the date of your anniversary, when you go to call the person, you'll see a reminder that it's an important day so you don't forget to say something. The anniversary alert uses Call Context, a feature Apple added in...