基于回声隐藏的信息隐藏算法，是一种音频信号的水印技术，包括隐藏信息的嵌入和提取，以及对于噪声，MP3压缩，滤波，重采样和延迟攻击的模拟。-Based on echo hiding information hiding algorithm, is an audio signal watermarking techniques, including embedding and extracting hidden information, as well as for noise, MP3 compr

利用音频指纹技术提取音频的mfcc系数，进而通过比较mfcc向量之间的距离来进行音乐的检索。-OpenFP is an experimental audio matching solution.It extract the mfcc of audio by using audio pingerprint technology.

DCT音频水印的提取与嵌入程序，修改文件路径就可以用了-DCT audio watermark embedding and extraction procedures can be used to modify the file path