F.Session5

Today I found the "C# data hide" program which I explained last session. It can produce a modified file from an original *.wav file. It uses a key file to hide the text embedded to the file. Also it can extract the cryptic text and the original file from a modified one. Of course the key file is needed to do so.
A view of this software is provided below:

We may use someone else's modified files in a large amount to do a statistical research or maybe we'll use above program to create lots of hidden data audio files.
I also studied 2 sections of MATLAB-jahad:
Section5.charachters and strings in MATLAB
Section6.loops and if-else instructions

To do list for the next session:
1.studying MATLAB-jahad from section7
2.don't forget about thinking if making all the numbers positive is correct or not.
3.do the statistical research