Source Codec for Multimedia Data Hiding
K. Somasundaram, M. Sukumar · 2013
Abstract — The communication system can be achieved based on steganography in stream media such as LSB based (Least Significant Bit) methods are the most popular strategies. The steganography algorithm for embedding data in the active and inactive frame audio streams encoded by XOR source codec. This is used extensively in channel. Then LSB embedding in the secret information flat regions of the speech. This method divides the two frames, each representing ‘0 ’ and ‘1 ’ respectively. The active and inactive frames of audio are more suitable for data embedding. The steganography in the active and inactive audio frames attains a larger data embedding capacity the same imperceptibility. An improved voice activity detection algorithm is suggested for detecting active voice and inactive voice. For each frame, the VAD function will return a 0 and 1 indication to indicate whether speech is active voice and inactive voice Experimental results show our proposed steganography algorithm not only achieved perfect imperceptibility but also gained the integrity of hidden messages in the case of packet loss.