Audio watermarking for copyright verification and content authentication

Abstract

A multipurpose watermarking scheme was proposed to provide a solution for some applications that require both copyright protection and content authentication.A robust watermark in the form of a binary image was first embedded in Mel-Frequency Cepstral Coefficient MFCC.Then the watermarked MFCC was coded to be binary string as a fragile watermark to be embedded in the DiscreteCosineTransform DCT domain.Blind detection was achieved for both robust and semi-fragile watermarks.The experimental results show that the proposed method is sensitive enough to detect malicious modifications and is capable of locating the regions that have undergone malicious manipulations.Besides it is also effective to detection reliability embedding capacity and robustness against common signal processing operations.