The security and anonymity of personally identifiable information is of utmost importance in a world where the average user spends between fifteen and twenty percent of their day engaged in online activity. Organization and individuals need tools that allow them to keep personal data and messages secret using common file types. Audio steganography allows users to conceal information within sound signals and transfer these files to other users across the Internet. The purpose of this report is to present a comparative study on different techniques for concealing data using audio steganography and the software applications and tools used to accomplish this. This paper researches the effectiveness of these tools and techniques by comparing three primary factors: the capacity of the carrier file to hold steganographic information, the transparency of the encoded stego file to be imperceptible to both human hearing and data attacks, and the robustness of the method or application to be used repeatedly as a steganographic tool. While the research presented in this paper is designed to provide consumers and developers an outlook on current tools, it also acknowledges that additional research is needed to address current trends in digital audio file sharing and live audio streaming.;Keywords: Cybersecurity, hiding, cryptography, wavelet, MP3, music, Dr. Albert Orbinati.
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