Published Paper Details:

This paper will present a audio watermarking method which is highly secured and offers triple layer protection and has very large virtual capacity and large imperceptibility in which watermark/data i.e. an image can be encrypted and hidden by modifying the magnitude values in FFT spectrum. The main idea is to modify magnitude of FFT samples with respect to Fibonacci series .Here an image will be encrypted and is embedded into audio which improves the security of watermarking drastically. XOR sum of image bits and PN sequence is used as embedding bit stream and is chosen as it is fastest and simple in computation when compared to other encryption techniques. XOR sum creates a huge virtual increase in payload or capacity of the algorithm. This technique mathematically proves that maximum changes in FFT samples is less than 61% and the average error rate considering a single sample is 25% .This technique is not only robust and transparent but also highly secured. The additional feature is its ability to handle large capacity i.e. from experimentally its proved to handle 700bps to 3kpbs efficiently, moreover this technique is blind, i.e. original signal is not required near receiver.