Speaking options are available only on those computers on which the Microsoft Speech engine has been installed. This is installed by default on Windows XP or later, but not on any earlier versions of Windows).
>> To speak the displayed interpretation text
•Select Speak Interpretations from the File menu.
This will speak the displayed text using the built-in speech synthesizer. Closing this window stops the speech.
>> To automatically speak the displayed interpretations whenever this dialog opens
•Select the AutoSpeak item from the Options menu. This may be switched off simply by re-selecting it.