运用DES算法对音频信号进行加密处理,主要采用置换和移位运算来实现加解密.-DES algorithm used to encrypt the audio signal processing, mainly replacement and shift operations to achieve encryption.

数字信号加密方法研究（音频），在matlab环境下对音频信号进行加密，并解密比较信号损失程度及适用范围。-Digital Signal Research (audio) encryption method, in the matlab environment on the audio signal is encrypted and decrypted compare the extent and scope of signal loss.