The watermark embedded can be extracted without the knowledge of original audio signals.

水印的抽取不需要原始音频信号的知识。

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This paper studies the optimum detection model of the multiplicative spread-spectrum watermark embedded by fixed strength.

对以固定强度嵌入的乘性扩频水印的最优检测模型进行了研究。

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The watermark embedded in this algorithm is concerned with the characteristic of image statistic and the watermark system can self-adapt to the image.

该算法水印的嵌入与图像的统计特性相关，水印系统能够自适应于图像。

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In the future, many, and possibly all, compact discs will be SDMI-compliant, meaning that each song will have a "watermark" embedded in it.

CNN: Digital music security initiative nearly ready

This packet of data (usually about four kilobytes of code) is then embedded within the file, and a digital watermark is inserted into the newly created space left behind by the compression process.

ECONOMIST: MONITOR