A robust digital audio watermarking based on statistics characteristics

Authors:
Xiang-Yang Wang;Pan-Pan Niu;Hong-Ying Yang
Affiliations:
State Key Laboratory of Networking and Switching Technology (Beijing University of Posts and Telecommunications), Beijing 100876, China and School of Computer and Information Technology, Liaoning ...;School of Computer and Information Technology, Liaoning Normal University, Dalian 116029, China;School of Computer and Information Technology, Liaoning Normal University, Dalian 116029, China
Venue:
Pattern Recognition
Year:
2009

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Abstract

In digital audio watermarking, the watermark's vulnerability to desynchronization attacks has long been a difficult problem. According to the audio statistics characteristics and synchronization code technique, a new robust audio watermarking scheme against desynchronization attacks is proposed in this paper. Firstly, the original digital audio is segmented and then each audio segment is cut into two parts. Secondly, with the spatial watermarking technique, the synchronization code is embedded into the statistics average value of audio samples in the first part. Finally, the second part of audio segment is cut into audio sections, the DWT is performed on the audio sections, and the watermark bit is embedded into the statistics average value of low frequency components. Experimental results show that the proposed scheme is inaudible and robust against common signals processing, including MP3 compression, low-pass filtering, noise addition, and equalization, etc. Moreover, it also survives several desynchronization attacks, such as random cropping, amplitude variation, pitch shifting, time-scale modification, and jittering, etc.