say 2.6

Specify messages to have them pronounced automatically. Type in and modify text and select from a broad array of voices organized under different male and female names. Tweak such parameters as the speed, pitch, and volume and enable the "speak on file to desktop" option.

Say is a simple program for Mac OS X that allows you to let your computer speak for you... in a wide variety of voices. Use it to entertain yourself, pull pranks on your friends, speak when your voice hurts, disgruntle your co-workers, and much more!