This tool lets you create computer generated speech from text you enter. Use the menu Tools -> Text to Speech, enter (or paste Ctrl+V) the text and click Synthesize Speech. Some trial and error can be required to get it right. For example spell out numbers "1 thousand 2 hundred" and acronyms "N. C. H. Software".
This feature requires a speech engine which is not installed on all computers. To download the Microsoft speech engine (or for foreign language speech engines) please see www.nch.com.au/speech.