Calopteryx - Baby Dolphin [Sound Bites #2]Especially for SoundCloud (and Dolphins, of course)

I have only used reverse sounds.
If you look at the frequency spectre [http://www.cl.ly/6wbv] you can see the competition logo [http://www.cl.ly/6yDM]
If you apply the reverse feature to the whole track the logo will look like this [http://www.cl.ly/6wk9]

http://en.wikipedia.org/wiki/Frequency_spectrum

Sound Bites #2 – Reverse Engineering: http://blog.soundcloud.com/2011/05/18/sound-bites-reverse
Sound Bites #2 winners!: http://blog.soundcloud.com/2011/05/25/sound-bites-2-winners/