A smarter Siri learns to recognize the sound of your voice in iOS 9

Siri just keeps getting smarter.

A new feature in iOS 9 will let you to train Siri so the assistant will only respond to your voice saying "Hey, Siri." The new voice recognition feature was rolled out in the new iOS 9.1 beta that launched Thursday.

Apple first added the hands-free "Hey, Siri" functionality in iOS 8. When enabled, the feature lets you initiate voice commands without touching your device when your phone is plugged in to a power source. In iOS 9, a new voice recognition feature allows you to "train" Siri to respond to the command from your voice only. Read more...