bash seamless loop wavfile

bashscript which turns an wavfile into a seamless loopable wavfile (using a crossfade technique). The faderatio indicates the length of the fade used, the higher the number the shorter the fade. Can result in interesting effects when batch-processing random audiosnippets.

requirements: sox package warning: this is a bash script, it might break or need some love.

https://gist.github.com/coderofsalvation/7740333 -