In this paper, a novel digital data-hiding technique for the high-quality audio file is introduced. The data is embedded into the frequency domain of the host audio signal utilizing the Fast Fourier Transform (FFT). The data is embedded into the phase element of the selected samples using the rounding concept of the traditional Phase Shift Keying (PSK) technique. The perceptual quality of the embedded audio file is changed as minimum as possible which means that there will be no noticeable difference between the original and the embedded audio file by the human ears.
Available online: https://ieeexplore.ieee.org/document/8662015