As with other puzzle caches, the posted coordinates are incorrect.
To find the correct coordinates of this cache you will need to analyze the included sound file. What you will need is hidden in the spectrogram. A spectrogram is a visual representation of sound. You will need to find out how to view the hidden coordinates in this spectrogram.
FTF: Congrats Gkatka!
Alert: You are about to download a file that contains further details needed to find this geocache. As the cache owner, I represent that this file is safe to download although it has not been checked by Groundspeak or by the reviewer for possible malicious content. Download this file at your own risk. - http://soundcloud.com/dcobra/geocoords-evw/s-IG12j
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