1 October 2011 A novel speech watermarking algorithm by line spectrum pair modification
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Proceedings Volume 8285, International Conference on Graphic and Image Processing (ICGIP 2011); 82855C (2011) https://doi.org/10.1117/12.913397
Event: 2011 International Conference on Graphic and Image Processing, 2011, Cairo, Egypt
Abstract
To explore digital watermarking specifically suitable for the speech domain, this paper experimentally investigates the properties of line spectrum pair (LSP) parameters firstly. The results show that the differences between contiguous LSPs are robust against common signal processing operations and small modifications of LSPs are imperceptible to the human auditory system (HAS). According to these conclusions, three contiguous LSPs of a speech frame are selected to embed a watermark bit. The middle LSP is slightly altered to modify the differences of these LSPs when embedding watermark. Correspondingly, the watermark is extracted by comparing these differences. The proposed algorithm's transparency is adjustable to meet the needs of different applications. The algorithm has good robustness against additive noise, quantization, amplitude scale and MP3 compression attacks, for the bit error rate (BER) is less than 5%. In addition, the algorithm allows a relatively low capacity, which approximates to 50 bps.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Qian Zhang, Qian Zhang, Senbin Yang, Senbin Yang, Guang Chen, Guang Chen, Jun Zhou, Jun Zhou, "A novel speech watermarking algorithm by line spectrum pair modification", Proc. SPIE 8285, International Conference on Graphic and Image Processing (ICGIP 2011), 82855C (1 October 2011); doi: 10.1117/12.913397; https://doi.org/10.1117/12.913397
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