- Open up the Settings app on iPhone or iPad.
- Select "Siri & Search."
- Choose "Siri Voice."
- Tap an option to hear an audio demonstration of what the voice sounds like.
- Leave the option checked to select it and exit out of the Settings app.
In the United States with an iPhone set to the English language, you can choose from an American, Australian, or British accent in either a male or a female voice.
If you use Siri on a Mac, you can also change the voice there. Just open up System Preferences, choose the Siri option, and use the dropdown menu under "Siri Voice" to choose something new.