In this paper the capacity of different interpolation techniques aimed at wow defect reduction is examined. Involved are: linear interpolation, two polynomial based interpolation methods (Hermite and spline) and the windowed sinc-based method. The performance of a synthetic audio signal restored using incommensurate resampling for wow cancellation is evaluated on the basis of standard audio def...

A method for evaluation of parasitic frequency modulation (wow) in archival audio is presented. The proposed approach utilizes sinusoidal components as their variations are highly correlated with the distortion variations. The sinusoidal components are extracted from audio signal by means of sinusoidal modeling procedures being often severely distorted and in case of wow also significantly modu...

In this paper an algorithmic approach to the wow defect characteristic evaluation is presented. The approach is based on a sinusoidal analysis comprising both amplitude and phase spectra processing. The frequency trajectories depicting the distortion are built on a basis of amplitude, frequency and phase dependencies and are further used for wow characteristic evaluation. Additionally the exper...

Virtual worlds have recently gained wide recognition as an important field of study in Computer Science. In this work we present an analysis of the mobility and interactions among characters in World of Warcraft (WoW) and Second Life based on the contact opportunities extracted from actual user data in each of those domains. We analyze character contacts in terms of their spatial and temporal c...

Focusing on World of Warcraft (WoW), the most popular massive multiplayer online role playing game (MMORPG), the present article stresses, that, similarly to addictive drugs, certain features of Internet applications may act on the mesolimbic dopaminergic system, and thus become addictive. The distinction is made between addictive products (e.g. nicotine, specific stimuli), first order vectors ...

In diesem Paper wird eine Arbeit dargestellt, in der eine empirische Studie vorgenommen wurde, um Anhaltspunkte für die Kompetenzentwicklung in Computerspielen am Beispiel von WoW (World of Warcraft) im Vergleich zum beruflichen Kontext zu zeigen. Neben der tatsächlichen Übertragbarkeit einiger Kompetenzbereiche zwischen der virtuellen und der realen Welt (z.B. Methodenkompetenz und Sozialkompe...