An efficient algorithm which uses the Discrete Cosine Transformation to compress .wav files by breaking long signals into segments and computing the DCT of each segment. Next, it identifies frequency components with amplitudes so low they are inaudible and removes them storing only the frequencies that remain. It then plays the signal back, loads the frequencies and amplitudes for each segment and applies the DCT.
Special thanks to Freesound (http://freesound.org), which is the source of many of the sound samples I use in this project, and to the Freesound users who uploaded those sounds. I may some of their wave files in the GitHub repository for this project, using the original file names, so it should be easy to find their sources.
Unfortunately, most Freesound users don't make their real names available, so I can only thank them using their user names. Samples used in this project were contributed by Freesound users: iluppai, wcfl10, thirsk, docquesting, kleeb, landup, zippi1, themusicalnomad, bcjordan, rockwehrmann, marchascon7, jcveliz. Thank you all!
Here are links to the sources:
http://www.freesound.org/people/iluppai/sounds/100475/
http://www.freesound.org/people/wcfl10/sounds/105977/
http://www.freesound.org/people/Thirsk/sounds/120994/
http://www.freesound.org/people/ciccarelli/sounds/132736/
http://www.freesound.org/people/Kleeb/sounds/180960/
http://www.freesound.org/people/zippi1/sounds/18871/
http://www.freesound.org/people/themusicalnomad/sounds/253887/
http://www.freesound.org/people/bcjordan/sounds/28042/
http://www.freesound.org/people/rockwehrmann/sounds/72475/