Steps to turn on Voice Access:
1. Go to Settings > Accessibility.
2. Select “Voice Access.”
3. Turn on the switch.4. Complete the setup and tutorial to set up and learn how to use Voice Access.
To use Voice Access completely hands-free, it's necessary to turn on “Ok Google” from any screen. Then just say “Ok Google” when you want Voice Access to start listening for commands. You may need to update the Google app to be able to start Voice Access by saying “Ok Google.” If you choose not to turn on “Ok Google” from any screen, or if your device does not support it, a blue Voice Access button appears on your screen. You can press the button, then say a voice command. You can also press, hold, and drag the button to move it to a different location on your screen.
Microphone: Voice Access uses the microphone to let you speak voice commands.
Phone: Voice Access observes the phone state so it can operate during phone calls.
Accessibility Service: Because this app is an accessibility service, it can observe your actions, retrieve window content, and observe text that you type.