Increasing Robustness of LSB Audio Steganography by Reduced Distortion LSB Coding

Nedeljko Cvejic; Tapio Seppänen

doi:10.3217/jucs-011-01-0056

JUCS - Journal of Universal Computer Science 11(1): 56-65, doi: 10.3217/jucs-011-01-0056

Increasing Robustness of LSB Audio Steganography by Reduced Distortion LSB Coding

Nedeljko Cvejic^‡, Tapio Seppänen^‡

‡ MediaTeam, Information Processing Laboratory, University of Oulu, Finland

Corresponding author: Nedeljko Cvejic ( cvejic@ee.oulu.fi )

This article is freely available under the J.UCS Open Content License.

Citation: Cvejic N, Seppänen T (2005) Increasing Robustness of LSB Audio Steganography by Reduced Distortion LSB Coding. JUCS - Journal of Universal Computer Science 11(1): 56-65. https://doi.org/10.3217/jucs-011-01-0056

Abstract

In this paper, we present a novel high bit rate LSB audio watermark ing method that reduces embedding distortion of the host audio. Using the proposed twostep algorithm, watermark bits are embedded into higher LSB layers, resulting in increased robustness against noise addition. In addition, listening tests showed that perceptual quality of watermarked audio is higher in the case of the proposed method than in the standard LSB method.

Keywords

audio steganography, LSB coding, data hiding H.5.1