Application of Improved Audio Steganography Method in Police Mobile Terminals
LU Yu-jun · Jisuanji gongcheng · 2012
For the purpose of guaranteeing convenience secure communication between police mobile and servers,this paper studies the design of audio steganography and its application in police mobile secure communication based on speech interaction,because of the imperceptible charater of audio steganography and convenient and fast of speech interaction.And it proposes an improved audio steganography method.Original signal is segmented by hamming function.Redundant interval is determined by short-time energy.Embedding interval is decideded,according to redundant interval and statistic data,then embed steganography information.Simulation experiment shows the excellent subjective imperceptibility of the audio steganography method.On this basis,the audio steganography method is applied in police mobile secure communication based on speech interaction.This kind of secure communication model based on this method is proposed and related experimental results show the correctness and feasibility of the model.