Miscellaneous

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.

You can use Audacity to:

AuCDtect

A free console program for determining the authenticity of musical CDs. By evaluating the character of audio data a CD contains, Tau Analyzer can distinguish between original studio-based recordings and those that have been "reconstructed" using a lossy audio source,

 

Audio Spectrum Analysis

Spectrogram is a freeware dual channel audio spectrum analyzer for Windows 2000/XP/Vista which can provide either a scrolling time-frequency display or a spectrum analyzer scope display in real time for any sound source connected to your sound card.

 

ASF view

A tool by Microsoft, tells you everything about the contents of an audio file.