Steganography System to Hide a Sound File in a Color Image

Data hiding represents a class of process used to embed data into various forms of media, such as image, audio, or text. The proposed voice in image steganography system is new approach used to embed audio into color image. Instead of using the least-significant-bit-plane (LSB 1) of the cover for embedding the voice, third-least-significant-bit-plane (LSB 3) has been used to increase the robustness. First, and second-leastsignificant- bit-plane (LSB 1 and LSB 2) may be modified according to bits of the voice, to minimize the difference between the cover and the stego-cover. For more protection to the voice signals, a stego-key has been used to permute the voice signals before embedding it. Experimental results of the modified method shows that Peak-Signal-to-Noise-Ratio (PSNR) is greater than the conventional method of LSBs replacement. Thus, the proposed system gives good results and can be applied in several cases in life.