Information hiding based on real-time voice in DCT domain
MA Deng-feng · Jisuanji gongcheng yu sheji · 2012
In order to meet the real-time requirements of important information,an information hiding method based on DCT domain real-time voice is given.DirectSound is using to capture real-time voice.According to masking effect of human auditory system,high frequency coefficient in DCT domain is chosen and the hide secret audio information is embedded into the captured original voice carrier by quantitative methods.Finally,real-time voice is transmitted using socket technology.Furthermore,the process of extracting secret information needn't participation of original voice carrier information to realize the blind extraction of secret information.The experiment shows that we can deliver secret information effectively by real-time voice in a good network environment.