Steganography and steganalysis in cryminology [tryb ... - cygnus
Steganography and steganalysis in cryminology [tryb ... - cygnus
Steganography and steganalysis in cryminology [tryb ... - cygnus
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Embedd<strong>in</strong>g data <strong>in</strong> mp3 files<br />
Audio file is divided <strong>in</strong>to frames<br />
In each frame the Scalefactors are the<br />
values of sound amplitude for a given<br />
frequency<br />
Differences between adjacent scalefacors<br />
are calculated<br />
The watermark pattern is embedded <strong>in</strong><br />
these areas where the changes would cause<br />
the least loss of quality