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A novel audio watermarking algorithm robust against recapturing attacks
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DOI：10.1007/s11042-022-14197-w.png)
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摘要
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Digital watermarking is a promising technology used in copyright protection for digital audio. However, in audio watermarking, it is still a challenge to achieve robustness against recapturing attacks, although much effort has been made in recent years. In this paper, a novel audio watermarking based on the frequency domain power spectrum (FDPS) feature is proposed to resist recapturing attacks. We divide a long audio signal into segments and split each segment into fragments. We embed synchronization codes in some fragments by quantifying the feature generated by discrete wavelet transform (DWT) approximate coefficients and copyright information in other fragments based on the FDPS feature. For the incoming audio, we extract synchronization codes to locate the watermarked fragments, further to extract copyright information. Experimental results demonstrate that the proposed method performs well under recapturing attacks and the bit error ratio (BER) value is decreased by more than 13% by comparing with the state-of-the-art methods.
Keyword:
Audio watermarking
Copyright protection
Robust feature
Recapturing attack
De-synchronization attacks
期刊
IF:
3
论文数:
2.0W
被引数:
3.2W
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Authentication and recovery algorithm for speech signal based on digital watermarking.png)
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