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Digital Audio Watermarking for Copyright Protection

Digital Watermarking is the process of embedding data called watermark or signature into a multimedia object (image or audio or video) so that the watermark can be extracted for ownership verification or authentication. A visible watermark is a secondary translucent viewer on a careful inspection. In this paper presents new cryptographic scheme which use audio. The scheme is secret sharing scheme in which share is audio or images and is not suspect to a human censor. There are two decryption methods which are either based on the interference property of sound or based on the stereo perception of the human hearing system. The secret key encryption algorithm is used for embedding the watermark using LSB technique. Keywords— Digital watermarking, Cryptography, Secret Key, Encryption, Decryption, Least Significant Bit (LSB). Mean Squared Error (MSE).