师姐留下的资料，具体是什么，我也不清楚，不过可以肯定是关于音频水印的-师姐leaving information specific what, I do not know, but it is certainly on the audio watermark

数字音频水印的嵌入，提取，然后进行攻击性实验，检验其鲁棒性-Digital audio watermark embedding and extraction, and then attack experiment to test its robustness