TITLE:
Which Bit Is Better in Least Significant Bit?
AUTHORS:
Fatin E. M. Al-Obaidi, Ali Jassim Mohamed Ali
KEYWORDS:
Audio Steganography, LSB Method, PSNR, MAE
JOURNAL NAME:
Journal of Information Security,
Vol.6 No.3,
May
14,
2015
ABSTRACT: The
weakness of Human Auditory System (HAS) led the audio steganography process to
be used in hiding data in the digital sound. Audio steganography is implemented
here by using Least Significant Bit (LSB) algorithm to hide message into
multiple audio files. This is achieved by 1st, 2nd, 3rd,
and 4th bits hiding ratios. In comparison to other used bits, hiding
results show that the use of 1st bit in LSB method for embedding
data is much better than those used bits as expected. In addition to that and
according to the results, file’s size affects strongly upon the effectiveness
of the embedding process while hiding starting position doesn’t affect upon the
variation of the adopted statistical estimators regardless to which bit is
used. Among the statistical estimators that have been adopted here, the Mean
Absolute Error (MAE) seems to
be the best one in testing hiding process.