This article also includes step by step instructions for enabling the Speech settings in order to use ‘text-to-speech’. Text-to-speech gives you the ability to have any selected text read aloud as well as spoken announcements of alerts.
You can use VoiceOver in its default configuration, or you can customise it to suit your needs. To customise the settings for VoiceOver settings:
Note: If this does not work it could be because someone else manages your computer settings (an IT department or administrator). If this is the case, you will need to contact them to access these settings or for further help.
For Apple's comprehensive VoiceOver Getting Started Guide go to: https://help.apple.com/voiceover/info/guide/10.12/
Note:‘VoiceOver includes Braille support. VoiceOver automatically recognises the Braille model in use and programs the keys — including “wiz wheels”, scrollers, router keys, and buttons — to best suit each model’s characteristics.
If you don’t have a USB Braille display, you can use the onscreen visual Braille panel that VoiceOver provides. The Braille Panel behaves like a standard 40-cell display. It displays both the Braille dots being sent to the dedicated Braille display and an English translation so that sighted instructors, parents, or co-workers can read its contents with minimal disturbance to the non-sighted user.
For more information on Braille display that work with VoiceOver visit Apple's guide at: https://support.apple.com/en-us/HT202524