Entwicklung eines Framework zur objektiven Bewertung von Audio Watermarking Verfahren

Since the wide availability of cd recorders and the possibility to share audio files over the internet, audio watermarking is a promising technology to protect the copyrights of the owners of such data. In the context of the development of the audio watermarking alogrithm ACWA, a framework was developed to evaluate the algorithm with regard to the requirements of quality and robustness.The quality evaluation is realised by implementing a web-based application that offers the possibility to perform subjective listening tests. Such a test may either be online, where all audio files are loaded from a server, or offline, where an audio cd containing the listening items is created. The evaluation of the robustness is supported by a VST plugin that integrates the existing audio watermarking algorithm in common audio tools. Beyond, the system for the quality evaluation was already used for a first listening test. The examples of this test are included in the thesis