Integer Wavelet Transform Based Approach for High Robustness of Audio Signal Transmission
R. Punidha, M. Sivaram · SSRN Electronic Journal · 2017
Steganography is the practice of concealing a file, message, image, or video within another digital media. In this modern world sharing of any digital media becomes tremendously insecure. Steganography is an efficient method introduced for the purpose of data hiding. An audio speech signal is transmitted at the transmitter side. Reshuffling and secret arrangement of approximate coefficients of an audio signal are hidden in the Cb component of the cover image using Integer Wavelet Transform (IWT). The wavelet used is Daubechies wavelet of level 2 (db2). Integer Wavelet Transform maps integer data set to integer data set. Embedding the audio signal within the cover file based on embedding procedure. At the receiver side using Inverse Integer Wavelet transform and extraction, the original signal is been retrieved. In the existing method, the haar wavelet process is weaved into steganography to conceal secret messages using Integer Wavelet Transform (IWT). The drawback of haar wavelet is that it is a primary wavelet. The simulation tool used in this project is MATLAB. The Integer Wavelet Transform (IWT) is mainly used for signaling techniques and the proposed work is also based on applying IWT to an audio speech signal.