A Secure Speech Transmission System Based on Steganography
Diqun Yan · Journal of Ningbo University · 2008
A digital encrypted speech transmission scheme based on audio-on-demand platform is proposed. Starting with G.729A coding algorithm being employed for secured speech,the bit stream from coder is embedded in open audio files using an improved LSB algorithm,and then output to the AOD network.The secured speech can be played back by the client from the system.Tests show that the audio quality is improved using the proposed algorithm,and the developed scheme has the better resistance to hostile attackers.