Audacity

Audacity is a free digital audio editor and recording application, available for Windows, Mac OS X, Linux, Unix and other operating systems.

Audacity can also be used for post-processing of all types of audio, including podcasts by adding effects such as normalization, trimming, and fading in and out. Audacity however, does not directly support WMA, AAC, or most other proprietary or restricted file formats. To import or export AC3, AMR(NB), M4A, WMA and other proprietary formats, use Audacity with the optional FFmpeg library.

The latest release of Audacity is 2.0.0 and was released on 13 March 2012. As of 10 October 2011, it was the 11th most popular download from SourceForge.net, with 76.5 million downloads.

In Downfall Parodies
Audacity is sometimes used by Untergangers, when sound editing is required.

Most known Untergangers that use it are Mfaizsyahmi, Benad361, Master Studios.