  In recent times, communication through the internet has tremendously
facilitated the distribution of multimedia data. Although this is indubitably a
boon, one of its repercussions is that it has also given impetus to the
notorious issue of online music piracy. Unethical attempts can also be made to
deliberately alter such copyrighted data and thus, misuse it. Copyright
violation by means of unauthorized distribution, as well as unauthorized
tampering of copyrighted audio data is an important technological and research
issue. Audio watermarking has been proposed as a solution to tackle this issue.
The main purpose of audio watermarking is to protect against possible threats
to the audio data and in case of copyright violation or unauthorized tampering,
authenticity of such data can be disputed by virtue of audio watermarking.
