Comparative analysis of Steganographic algorithms intacting the information in the speech signal for enhancing the message security in next generation mobile devices

Secure data exchange is inevitable in the current era of Information Technology, for avoiding the eave-droppers. To substantiate the same, various Steganography techniques are presented in this paper to be employed with the mobile communication. Steganography deals with the skill of concealing digital information in multi-media. Audio Steganography using Low Bit encoding method, Modified Least Significant Bit (LSB) method, Alternate LSB method, Spread Spectrum method and Echo-hiding method are presented here. All the methods described above are well in existence, so a novel method of Alternate Bit Encoding is also presented with its comparison to the available methods.