line string (255) is a string (max. length 255) which contains the
text you want to be spoken.
Emulates the Macintalk RE external package using the Speech Manager instead of MacinTalk.
This procedure replaces the PARLE function from the Macintalk RE external package by David Halfon, using the default voice to read out the string you specify.
If an error occures a beep will be played instead. And also when Speech Pack is disabled after use of the SP SPEECH OFF command.