There is an option in Mac OS to announce alerts, when they are displayed or to have it announce the time in regular intervals.
My question is: Is there an option to announce notifications, or even better a way to select which app's notifications should be announced?
Best Answer
With regard to speaking notifications, this does not appear to be possible in OS X 10.9, Mavericks. Please take the opportunity ask for this feature via Apple's feedback page.
You can however have the time announced at regular intervals. The setting is in the Date & Time panel of System Preferences: