数字水印技术是用信号处理的方法在声音，图像或视频等数字化多媒体数据中嵌入隐蔽信息的行为。
Digital watermarking is the technology that embeds secret information into digital multimedia data such as sound, image or video by using signal processing technology.
本文讨论的是应用信息隐藏技术的理论，在声音文件中添加数字水印的技术。
This article discusses is the application information hideaway technology theory, increases the digital watermark in the sound document the technology.
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