基于掩蔽效应的半脆弱数字音频水印系统设计  

Design of semi⁃fragile digital audio watermarking system based on masking effect

作　　者：买尔丹·祖农 ZUNON Mardan(School of Information Engineering,Xinjiang Institute of Engineering,Urumqi 830023,China)

机构地区：[1]新疆工程学院信息工程学院,新疆乌鲁木齐830023

出　　处：《现代电子技术》2022年第9期72-76,共5页Modern Electronics Technique

摘　　要：传统的数字音频水印系统鲁棒性较差,抗噪能力难以达到用户要求。为此,基于掩蔽效应设计了一种新的半脆弱数字音频水印系统。在系统硬件部分设计了中央处理器、存储器以及音频接口,用于实现信息存储和逻辑运行。在系统软件部分引入掩蔽效应,通过删除掩蔽阈值下的冗余信息、水印降维处理、直接抽取一个含有二码音频数字水印的相位水印数字信号完成软件流程的设计。实验结果表明,该系统的鲁棒性有所提高,有效增强了抗噪能力。As the traditional digital audio watermarking system has poor robustness and its anti⁃noise ability is far from meeting the requirements of users,a new semi⁃fragile digital audio watermarking system is designed based on masking effect.In terms of the system hardware,the CPU,memory and audio interface are designed to realize information storage and logic operation.In terms of the system software,the masking effect is introduced,and the software process is designed by deleting the redundant information in the masking threshold,reducing the watermark dimensionality,and directly extracting a phase watermark digital signal containing two code audio digital watermark.The experimental results show that the robustness of the system is improved and its anti⁃noise ability is enhanced effectively.

关 键 词：水印系统 半脆弱数字音频 降维处理 掩蔽效应 信息存储 逻辑运行 

分 类 号：TN918.91-34[电子电信—通信与信息系统] TP399[电子电信—信息与通信工程]