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1. Audacity is the name of a popular open source multilingual audio editor and recorder software that is used to record and edit sounds. It is free and works on Windows, Mac OS X, GNU/Linux and other operating systems.
Audacity can be used to perform a number of audio editing and recording tasks such as making ringtones, mixing stero tracks, transferring tapes and records to computer or CD, splitting recordings into separate tracks and more. The Audacity Wiki provides indepth tutorials on how to do these types of tasks in Audacity. Vendors can also freely bundle Audacity with their products or sell or distribute copies of Audacity under the GNU General Public License (GPL).

The latest release of Audacity (March 2011) is 1.3.12 (Beta) with the main release being Audacity 1.2.6. if you want dowload. click here


2.
Movie Maker is a software that allows you to create and edit videos. This program is manufactured by Microsoft Windows and is available for free. Movie Maker is non-linear editing software, which means that the original file that was placed on your hard drive will not be modified in any way. Movie Maker creates its own distinct video file while you are editing, so that if you want, you can create several different movies using the same footage. Various features of Movie Maker include time line narration, effects, audio track, transitions, titles and credits.
The first version of Movie Maker was released in 2000. The release of Movie Maker version 1.0 coincided with the release of Windows ME. Windows 2000 came out the same year as Windows ME, but Movie Maker was not included with this operating system.
Version 1.1 of Movie Maker came out with Windows XP, which was released in 2001. The main changes from version 1 to 1.1 were the ability to create WMV 8 and DV AVI movies. By November 2002, Movie Maker versions 2.0 and 2.1 were released, both of which included various new features. In 2005, Windows XP Media Center Edition was released. In conjunction with that operating system, Movie Maker version 2.5 was released, which added the ability to burn DVDs and a few new transitions.click here