MP3-resistant music steganography based on dynamic range transform

In this paper, we present a novel audio steganography scheme for embedding high-capacity covert data in a music carrier, where the carrier is first filtered into a sub-signal, insensitive to the human auditory system, using a dynamic range filter, then the sub-signal is downsampled and transformed to a 2D arrangement (image), and finally the image is transformed to a wavelet domain singular value decomposition (SVD) on which a quantization-index-modulation process is applied for embedding the covert data. The proposed scheme, due to its indirect embedding on the singular values of the dynamic range filtered data in the visual domain, possesses a high and flexible embedding capacity and a superb MP3 robustness while retaining an excellent inaudibility. The MP3 robustness and the imperceptibility are further enhanced by adaptively modeling the quantization parameters, based on the statistics within subbands. The embedded data extraction is also secure and oblivious.