How to embed a watermark into a digital audio signal, and, the invention relates to a method of detecting a watermark in the digital audio signal. To embed a watermark into a digital audio signal, (S in (t)) from, is created (S out (t)) is corrected input segment selected segments of the digital audio signal. (S out (t)) is modified segment sub-segment of 2 (S in (t)) of the input segment (S sub, 1 (t), S sub, 2 (t)) overlapping region in the (L ov) correlation value becomes the maximum, it is created time-shifted so that the (dt) is at least one (S sub, 1 (t),, 2 (t) S sub) of the two sub-segments. Then, the weighted mean (S sub, 1 (t),, 2 (t) S sub) of two sub-segments overlapping region in (L ov), a signal overlapping area in (L ov) (S ov (t)) is created. When it detects a digital watermark embedded in (x (t)) of the received digital audio signal, the template signal and a second (h1 (t)) template first signal 1 (h2 (t)) is generated. Then, by comparing (x (t)) and the received digital audio signal template signal and a second (h1 (t)) template a first signal (h2 (t)), the first correlation value (c1) and second correlation value (c2) is created. It is determined at the end, if it is higher than (c1) first correlation value, the digital watermark is included in the received digital audio signal second correlation value (c2).
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机译：如何将水印嵌入数字音频信号中，并且本发明涉及一种在数字音频信号中检测水印的方法。要将水印嵌入到数字音频信号中，请创建（S out （t）from（S in （t）），然后校正输入段的数字音频信号。 （S out （t））是输入段（S sub，1（t）的2（S in （t））的修改段子段），（L ov）相关值中的 S sub，2 （t））重叠区域变为最大值，因此创建时移，以便（dt）是两个子段中的至少一个（S sub，1（t），2 （t）S sub）。然后，将（L ov ），在（L ov）（S ov （t））中创建一个信号重叠区域。当检测到嵌入在接收到的数字音频信号的（x（t））中的数字水印时，将生成模板信号和第二个（h1（t））模板第一信号1（h2（t））。然后，通过比较（x（t））和接收的数字音频信号模板信号以及第二（h1（t））模板，第一信号（h2（t）），第一相关值（c1）和第二相关值（ c2）已创建。最后确定，如果它高于（c1）第一相关值，则数字水印被包括在接收的数字音频信号第二相关值（c2）中。
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