First let me start by saying that overclocking is very risky, you can seriously damage your system, so please use this guide with care.
That said lets start!
Compiz, Beryl and some games work a bit slow on old video cards, so we overclock and improve their performance!
I have an ATI Radeon 9550 card made by Gigabyte […]

This guide can be adapted to any distro, its not Ubuntu specific.
Installing necessary tools
sudo apt-get install aespipe mkisofs loop-aes-utils
Chose a password
You need to chose a 20+ character password and DO NOT FORGET IT, you will NEVER get your data back if you forget the password.

Festival is a free software for speech synthesis, it is distributed under an X11-type licence allowing unrestricted commercial and non-commercial use alike.From Wikipedia, the free encyclopedia
Speech synthesis is the artificial production of human speech. A computer system used for this purpose is called a speech synthesizer, and can be implemented in software or hardware. A […]