How to Hide a secret text in a .wav sound file

Here's a demo which shows a way to produce WAV sound files with TEXT using Photoshop or any photo editing software.

This way you can hide some secret messages into small wav files and send them. The receiver must know how to open the sound file and read WAVEFORM data to understand secret message.
These are the programs you use:

- Coagula Light 1.666
http://hem.passagen.se/rasmuse/Coagul...
- Sonic Visualizer
http://www.sonicvisualiser.org/