Desynchronization-attack-resilient audio watermarking mechanism for stereo signals using the linear correlation between channels
- Publisher:
- SPRINGER
- Publication Type:
- Journal Article
- Citation:
- World Wide Web, 2022, 25, (1), pp. 357-379
- Issue Date:
- 2022-01-01
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| Filename | Description | Size | |||
|---|---|---|---|---|---|
| Desynchronization-attack-resilient audio watermarking mechanism for stereo signals using the linear correlation between channels.pdf | Published version | 964.83 kB |
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Copyright infringement is a serious problem in the music industry, especially for Internet-based platforms. The existing audio watermarking methods for copyright protection have limited robustness against the desynchronization attacks. Besides, most of the methods are not designed for stereo signals, which are widely used by online-based music and video platforms. In this paper, we present a desynchronization-attack-resilient watermarking method for stereo signals. In the watermark embedding process, both the left channel and the right channel of the host signal are firstly segmented and transformed into the frequency domain using the discrete cosine transform (DCT). Secondly, the linear correlation between channels (LCBC) in the DCT domain is calculated using the Pearson correlation coefficient (PCC). Then watermark bits are embedded by modifying LCBC for each segment. Since the desynchronization attacks as well as other common attacks affect both the left channel and the right channel in a similar manner, LCBC is robust against both desynchronization attacks and other common attacks. Theoretical analysis and experimental results demonstrate the effectiveness of the proposed method.
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