Research Article
Spread Spectrum Audio Watermark Based on Non-uniform Quantization
@INPROCEEDINGS{10.1007/978-3-030-41114-5_18, author={MeiJun Ning and Tao Peng and YueQing Xu and QingYi Quan}, title={Spread Spectrum Audio Watermark Based on Non-uniform Quantization}, proceedings={Communications and Networking. 14th EAI International Conference, ChinaCom 2019, Shanghai, China, November 29 -- December 1, 2019, Proceedings, Part I}, proceedings_a={CHINACOM}, year={2020}, month={2}, keywords={Audio watermarking Non-uniform quantization Robustness}, doi={10.1007/978-3-030-41114-5_18} }- MeiJun Ning
Tao Peng
YueQing Xu
QingYi Quan
Year: 2020
Spread Spectrum Audio Watermark Based on Non-uniform Quantization
CHINACOM
Springer
DOI: 10.1007/978-3-030-41114-5_18
Abstract
Audio watermarking is an information hiding technology which is widely used in copyright protection and information security. This paper proposes a novel audio watermarking scheme based on spread spectrum and non-uniform quantization. The watermarks are embedded by modifying the quantization coefficients. The proposed algorithm utilizes the characteristics of non-uniform quantization to adopt different quantized signal-to-noise ratios for the low-frequency and high-frequency parts of the audio signal, thus improving the robustness of the technology while ensuring the sound quality is not damaged. Compared with the existing audio watermarking methods, the proposed scheme is especially robust against additive white Gaussian noise (AWGN). Experimental analysis shows that the proposed method provides high audio quality and excellent capability to withstand various noise attacks particularly in AWGN.
