图像与声音作为水印信息的处理，声音的处理还需要配合一定的音频处理软件，包括嵌入与提取-image and sound as the processing and extraction of watermark information

声音水印的一些论文还有外文书，和声音水印的matlab小程序-Some papers also sound watermark foreign instruments, and sound watermarking matlab applet

向数据多媒体(如图像、声音、视频信号等)中添加某些数字信息以达到文件真伪鉴别、版权保护等功能。嵌入的水印信息隐藏于宿主文件中，不影响原始文件的可观性和完整性。(Some digital information is added to the data multimedia (such as image, sound, video signal and so on) to achieve the function of authenticity identification, copyright