Comprehensive non-repudiate speech communication involving geo-tagged featuremark

Abstract

The study of audio watermarking has become significant due to its strategic as well as commercial importance. This dissertation addresses the key focus area, concerns in the current audio watermarking practices and what we have done for guaranteeing a secure audio communication. A novel watermarking technique is suggested which utilize audio characteristics and geo-location information to formalize the watermark is later embedded within the audio signal using FWHT. The geo-location information can aid as a secondary security scrutiny in user authentication system or can assist in discovery of the geo-coordinates of the place where the communication happened. The research can further be extended to implement information security in e-governance and in the interest of Law Enforcement, particularly Computer Forensics.