Accessibility features for speech on Mac
Your Mac comes with built-in tools for communicating in the way that works best for you, whether you’re nonspeaking, at risk of speech loss, or someone with a speech disability. You can have what you type spoken out loud, create a synthesized voice that sounds like you, and more.
To explore accessibility features for speech, choose Apple menu 
in the sidebar, then go to the Speech section. (You may need to scroll down.)
Open Accessibility settings for me
Type to speak
 Live Speech If you’re unable to speak or you have a speech disability, type what you want to say and have your Mac speak it. |  Personal Voice If you’re at risk of losing your ability to speak, create a synthesized voice that sounds like you. |
 Type to Siri Type your Siri requests instead of speaking them. |
Control your Mac with your voice
 Use voice commands Speak commands to navigate and interact with what’s on the screen, dictate and edit text, and more. |  Create Vocal Shortcuts Have your Mac perform an action when you speak a word or another sound of your choosing. |
Have Siri listen for atypical speech If you have an acquired or progressive condition that affects speech, have Siri recognize a wider range of atypical speech patterns. |
You can also use Dictation to complete common tasks and enter text using just your voice.
Tip: Control your go-to accessibility features and settings with Siri, keyboard shortcuts, or from the menu bar. See Quickly turn accessibility features on or off.