Adaptive enhanced digital audio steganography using wavelets with secure optimum pixel adjustment algorithm
Seema Prashant Nehete, Mandar G. Sohani · 2010
In this paper a novel method for digital audio Steganography with security i.e cryptography is presented where covert data is embedded into the coefficients of host audio (cover signal) in integer wavelet domain. This is done using embedding algorithm. The coefficients are calculated using Haar transform in transform domain and these coefficients are used to embed secret data. The inverse integer wavelet transform is applied to the modified coefficients to form new audio sequence (stego signal) with the optimum pixel adjustment (OPA) algorithm. The OPA algorithm is applied after embedding secret message to minimize the embedding error. The proposed system showed high hiding rates with reasonable imperceptibility compared to other steganographic systems and better audio quality.