Steganographic algorithm of hiding information in sound based on Fourier transform and masking
Grzegorz Kozieł · Control and Cybernetics · 2011
A new steganographic method based on Fourier trans- form is proposed. Data is attached in the frequency domain within the limits of the audible band. Masked frequencies are used to con- ceal information in order to make the changes inaudible for human ear. This approach allows for modification in the sound frequency band only, and does not require any additional modifications. It also allows for concealing information efficiently, minimizing the number of changes and gaining robustness with respect to popular sound transformations.