本java包提供了读取音频文件中真实数据的类。该类提供了获取音频文件的采样率、样本数据存储位数、样本数据（经过数据缩小处理，其值在-1至1之间）等方法-The java package provides the real data of the class to read audio files. Sampling rate class provides access to the audio file, the median of the sample data is stored, the sample data (processed after data is reduced, its value between-1 and 1) and other methods