Open the Google app, then touch your profile icon
> Settings > Voice > Voice Match.
Tell your phone to call people, get directions, send messages, set alarms. The possibilities are enormous.
When the phone responds, say the command (for example, “Call Elise” or “Set alarm for 7 AM tomorrow”).
You can set your phone to automatically unlock and perform all voice commands when:
You can temporarily turn voice recognition off so that your phone isn't triggered by your voice. You can also permanently delete the voice model you recorded.
Adjust settings:
If your phone isn't recognizing “OK, Google” commands: