iPhone has more hearing accessibility features than most people realise — and enabling the right combination makes a genuine difference for people with hearing difficulty. This is a step-by-step guide to the settings worth enabling, and what each one does.
1. Headphone Accommodations
Where: Settings > Accessibility > Audio & Visual > Headphone Accommodations
This is the most impactful audio setting for hearing loss. It adjusts the audio profile of your AirPods or compatible Beats headphones to compensate for hearing difficulty — boosting the frequencies (typically high-frequency consonants) that are most commonly reduced in mild hearing loss.
Enable Headphone Accommodations, then tap Custom Audio Setup. The brief guided test presents audio comparisons and asks which sounds clearer. Based on your choices, iOS creates a personalised profile. You can also select Slight, Moderate, or Strong amplification directly, or use Vocal Range to boost mid-range speech frequencies.
This setting applies to all audio — music, video, calls — whenever you're using compatible headphones.
2. Phone Noise Cancellation
Where: Settings > Accessibility > Audio & Visual > Phone Noise Cancellation
Reduces ambient noise when you're on a phone call holding the receiver to your ear. The effect is most pronounced in environments with consistent background noise (road noise, air conditioning, general room noise). Worth enabling — it has no downside and costs nothing.
3. Mono Audio
Where: Settings > Accessibility > Audio & Visual > Mono Audio
By default, iPhone audio is stereo — left and right channels carry different content. For people with hearing loss in one ear, stereo means some audio may only be audible in the ear that works less well. Mono Audio combines both channels and delivers the full audio to both ears equally.
Even if your hearing loss is symmetrical, Mono Audio can be useful in some listening contexts. The adjacent balance slider lets you shift audio towards one ear if needed.
4. Sound Recognition
Where: Settings > Accessibility > Sound Recognition
This feature uses the iPhone's microphone to detect specific sounds — doorbell, knock, smoke alarm, baby crying, appliances, and more — and alerts you with a notification. It's not amplification, but it helps with the situational awareness that hearing loss can reduce.
Particularly useful at home or when wearing headphones where you might not hear household sounds.
5. Live Captions (iOS 16+, supported devices)
Where: Settings > Accessibility > Live Captions
Transcribes spoken audio on your device in real time, displaying a caption overlay. Works for phone calls, FaceTime, videos, and any media playing on the device. Accuracy is high for clear speech in quiet conditions. In noisy environments or with heavy accents, it's less reliable — but even an imperfect transcript provides a useful cue when you've missed a word.
6. Subtitles and Captioning
Where: Settings > Accessibility > Subtitles & Captioning
Enables closed captions automatically for all video content that supports them. You can also customise caption appearance — font size, style, background colour — to make them easier to read. Enable "Closed Captions + SDH" for the widest compatibility.
The Complete Setup
Working through all of the above takes about ten minutes and doesn't require any additional equipment if you already have AirPods. The combination of Headphone Accommodations, Phone Noise Cancellation, and Mono Audio (if relevant) addresses the most common everyday listening challenges.
For real-time amplification in live situations — conversations, TV, events — a hearing amplifier app completes the picture by giving you active, adjustable boost wherever you are.