Have what you type spoken out loud on Mac
If you’re unable to speak or have lost your speech over time, you can use Live Speech on your Mac. With Live Speech, have what you type spoken out loud in in-person conversations and in apps like FaceTime. You can create and select from a list of phrases you use often so you can chime in quickly in a conversation.
You can choose from dozens of system voices or use a a Personal Voice you create.
Have what you type spoken out loud
You can have what you type spoken out loud.
On your Mac, choose Apple menu
in the sidebar, go to Speech on the right, then click Live Speech. (You may need to scroll down.)Turn on Live Speech.
By default, the system voice from Spoken Content settings is used to speak what you type out loud. To choose another voice, including a Personal Voice you created, click the Voice pop-up menu.
Click the Type to Speak text field in the Live Speech window, enter the text you want spoken aloud, then click the Speak button
or press Return.
You can hide or show the Live Speech window as needed by clicking the Live Speech icon 
in the menu bar.
Have saved phrases spoken out loud
With Live Speech, you can select from a list of phrases you use often. This can be useful when you want to quickly chime in during conversation.
On your Mac, choose Apple menu
Turn on Live Speech.
Click the Saved Phrases icon
in the Live Speech window, then click one or more of your saved phrases.To have the text spoken out loud, click the Speak button
or press Return.You can click the Saved Phrases icon
again to hide your saved phrases.
Add or remove saved phrases
Add or remove phrases from the list of saved phrases that you use often.
On your Mac, choose Apple menu
Do any of the following:
Add a saved phrase: Click the Add button
, enter your phrase in the text field, then press Return.Remove a saved phrase: Select a phrase, then click the Remove button
.