摘要
将语音特征引入数据库水印,提出一种基于盲源分离的多重音频数据库水印算法.把语音信号混合成水印信息后嵌入到关系数据库中.多重水印提取后,采用基于最大信噪比的盲源分离算法分离语音信息,应用动态时间规整算法的语音识别技术,将语音信息进行模板匹配确定版权归属.
By introducing speech,a multiple audio watermarking algorithm for database based on blind source separation is presented. The watermarking,a mixture of the speech signals of multiple copyright owners is inserted into database. After multiple watermarking is extracted, the speech signals of copyright owners will be separated by blind source separation algorithm based on maximum signal noise ratio. The speeches are matched by speech recognition technology based on DWT algorithm in order to prove that speeches are owned by multiple copyright owners.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2012年第1期78-83,共6页
Acta Electronica Sinica
基金
国家863高技术研究发展计划(No.2007AA01Z404)
教育部人文社会科学研究青年基金(No.11YJCZH021)
曲阜师范大学科研基金(No.XJ200840)
山东省高等学校科技计划项目(No.J10LG04)
山东省社会科学规划项目(No.10CTQJ01)
关键词
数据库水印
盲源分离
音频
版权保护
database watermark
blind source separation
audio
copyright protection