Audio steganography is a security technique by which a secret data to be transmitted over a public insecure channel is embedded into an audio cover object that hides it in such way that third party cannot detect the presence of the message. In this proposed system, DES cryptographic encryption algorithm is used to encrypt data before hiding it into the cover object for additional security. For the purpose of data encoding into audio samples, LSB coding algorithm is used. The overall system gives a relatively secure system that hides the secret message, a feature is provided by steganography, beside deformations the structure of the message, a feature provided by cryptography, which together leads to prepare the message travel through public channels.