Watermark signal of the right channel whose magnitude is limited below the audible threshold, is used to control the detection threshold.
右声道水印信号为幅度限制在可听门限的白噪声，用来控制检测门限。
Watermark signal of the right channel whose magnitude is limited below the audible threshold, is used to control the detection threshold.
右声道水印信号为幅度限制在可听门限的白噪声，用来控制检测门限。
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