LG LS720 - Manual (Page 69)

Phone Calls 59
 Preferred Engine: Choose which text-to-speech engine you prefer to use. Tap to
set various engine settings.
 Speech rate: Allows you to adjust the rate at which the displayed text is spoken by
the phone. Choose from: Very slow, Slow, Normal, Fast, and Very fast.
 Listen to an example: Plays a short example of what the text-to-speech feature will
sound like on your phone when activated.