High Capacity Audio Watermarking Based on Fibonacci Series

Abstract

Watermarking is used to hide secret information for copyright protection of intellectual property from violation. Digital watermarking is process by which a watermark is embedded or hide into media .This paper contains high capacity audio watermarking system to embed the secret information and extract that secret information exactly by changing magnitude of the some frequency samples with minimal average error. Divide the FFT spectrum into small segments and then change magnitude of the frequency sample based on Fibonacci series is the key idea of this scheme. Maximum change for related FFT sample is less than 61% and the 25% is average error of each sample. Capacity, robustness and transparency are regulated by using two parameters frequency band and frame size. Possible to adaptively changing frequency samples and robust, transparent technique can be achieved by using Fibonacci series. Fibonacci series is the key idea for this watermarking technique to implement robust and transparency technique. This method has minimal perceptual distortion and robustness to signal processing attacks and high payload capacity.