gpg4usb is a very easy to use and small portable editor to encrypt and decrypt any text-message or -file you want.
Our aim is, to give anyone the possibility to send and receive secure encrypted messages anywhere - on any computer out there, no matter if Microsoft Windows(TM) or Linux is running on it. Therefore it's usage is self-describing, and the user-interface as simple as possible.
Audacity is free, open source software for recording and editing sounds. It is available for Mac OS X, Microsoft Windows, GNU/Linux, and other operating systems