【摘要】 介绍了数字音频水印技术的发展背景以及在音频水印系统中广泛应用的音频掩蔽现象和MPEG心理声学模型 I。综述了典型的顽健性和脆弱性音频水印技术,顽健性算法进一步在时间域、频域、压缩域上分别阐述。分析了对数字音频水印系统的攻击,特别是在时间域能够以很小代价击败绝大多数音频水印算法的同步攻击,并讨论了几种可能的解决策略。最后总结了当前存在的问题并对其发展进行了展望。更多还原

【Abstract】 We introduce the development background and proprieties of digital audio watermarking, and present an overview and detailed analyses of the existing state-of-the-art audio watermarking algorithms. Special attention is paid to the synchronization attacks, which can destroy most audio watermarking schemes with very low cost. Besides, we also discuss several promising directions for future research and development, which are very important to the studies in this field.更多还原