In recent years there has been an increased interest in audio steganography and watermarking. This is due primarily to
two reasons. First, an acute need to improve our national security capabilities in light of terrorist and criminal activity
has driven new ideas and experimentation. Secondly, the explosive proliferation of digital media has forced the music
industry to rethink how they will protect their intellectual property. Various techniques have been implemented but the
phase domain remains a fertile ground for improvement due to the relative robustness to many types of distortion and
immunity to the Human Auditory System. A new method for embedding data in the phase domain of the Discrete
Fourier Transform of an audio signal is proposed. Focus is given to robustness and low perceptibility, while maintaining
a relatively high capacity rate of up to 172 bits/s.
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