Data Hiding in Digital Audio by Frequency Domain Dithering
A technique that inserts data densely into short frames in a digital audio signal by frequency domain dithering is described. With the proposed method, large embedding capacity can be realized, and the presence of the hidden data is imperceptible. Synchronization in detection is achieved by using a two-step search process that accurately locates a PN sequence-based pilot signal attached to the data during embedding. Except for a few system parameters, no information about the host signal or the embedded data is needed at the receiver. Experimental results show that the method is robust against attacks including AWGN interference and MP3 coding.
KeywordsAudio Signal Data Hiding Quantization Step Digital Audio Audio Watermark
Unable to display preview. Download preview PDF.
- 1.Swanson, M.D., et al.: Multimedia Data-Embedding and Watermarking Technologies. In: Proc. IEEE, vol. 86, pp. 1064–1087 (1998)Google Scholar
- 3.Johnson, N.F., et al.: Information Hiding: Steganography and Watermarking —Attacks and Countermeasures. Kluwer Academic Publishers, Dordrecht (2000)Google Scholar
- 8.Tilki, J.F.: Encoding a Hidden Digital Signature Using Psychoacoustic Masking. Thesis submitted to the Faculty of the Bradley Department of Electrical and Computer Engineering, Virginia Polytechnic Institute and State University, June 9 (1998)Google Scholar
- 9.Cox, R.V., et al.: Scanning the Technology: On the Applications of Multimedia Processing to Communications. In: Proc. IEEE, vol. 86, pp. 755–824 (1998)Google Scholar
- 12.Brad Meyer, E.: ABX Tests and Testing Procedures. Boston Audio Society Speaker 19(3) (1990), http://bostonaudiosociety.org/bas_speaker/abx_testing.htm