Promo Video:
http://blip.tv/file/586135/
Motor Mouth - voice activated avatar speech animator
Motor Mouth is the first of a kind product which makes your avatar talk using SL-voice activation, all built right into Second Life. With Voice turned on, when you speak your avatar will be animated so that its mouth is speaking realistically when you do!
Wearing Motor Mouth is just like an animation override, except even easier! Its completely automatic. Wear it, and forget it. Except to show off to your friends, of course!
The Motor Mouth object is modifiable and the script is copiable, so feel free to put a copy of the script into one of your own items that you always wear if you want. Its up to you!
Updates and bug fixes are free for the forseeable lifetime of this product. New features will be coming out on a regular basis.
So go ahead and let your avatar start talking, too!
EDIT: Helps if I add a link. http://slurl.com/secondlife/Uthe/47/104/25