说明：  利用Matlab实现语音信号的数字水印技术.利用语音获取设备获取需要传送的保密语音信号；选择用于传输保密语音信号的普通声音载体；对加入水印信息的文件进行各种滤波处理，然后再对其进行水印提取，观察其结果；
(Digital watermarking technology using Matlab voice signals using voice capture device to obtain confidential voice signals to be transferred Select common vector for the transmission of confidential voice speech signal adding watermark information on a variety of filtering files, and then its watermark extraction, observe the results )