For improving security of voice in its transportation,chaotic signal is taken as a key and added in the phonetic signal to form a cryptogram.

• 为了加强语音传输的安全性,利用混沌的特性,把混沌作为加密钥加入到语音信号中形成密文,并从此密文中剔除混沌信号将语音信号还原,从而实现了对实时语音的加密解密处理。