One of the iPhone’s most helpful features is Sound Recognition. When you activate it, your iPhone will listen continuously for certain sounds – such as a knock at the door, water running, or a dog barking – and notify you when it hears it.
Here’s how to activate it:
- Go to Settings > Accessibility and then select Sound Recognition.
- Toggle Sound Recognition to on.
- Tap Sounds, and then choose the sounds that you want your iPhone to recognize.
- You’ll see a handful of preset sound options, like a Dog Bark, Door Knock, Water Running, and more.
- Select the sound you’d like your phone to recognize and toggle it to on. We’d also recommend setting a different custom alert tone for each sound you choose.
- From there, test it out. You will hear a sound and notification when the sound you’ve chosen has been detected.
Note that Apple indicates that this feature is not 100% accurate, and shouldn’t be relied upon in emergency situations.