说明：  最不 重 要 位(LSB)方法DO是将秘密数据(水印数据)嵌入到载体数据中最简单的一种方法，它是在时域里隐藏数据。任何的秘密数据都可以看作是一串二进制位流，而音频文件的每一个采样数据也是以二进制数来表示。这样，可以将部分采样值的最不重要位用代表秘密数据的二进制位替换掉，以达到在音频信号中嵌入秘密数据的目的。
(The most significant bits (LSB) method of DO is the secret data (watermark data) embedded into the data in the simplest way, which is hidden data in the time domain. Any secret data can be viewed as a string of binary bit stream, and audio files of data for each sample is expressed in binary numbers. This value can be part of the sample with the least bit representative of the secret bits of data and replace the audio signal to achieve the purpose of embedding the secret data.)