TY - CHAP A1 - Müller, Regine ED - Hobelsberger, Hans T1 - Professionalisation and academisation of social work in the process of transformation: Opening Remarks T2 - Social glocalisation and education. social work, health sciences and practical theology perspectives on change Y1 - 2020 SN - 978-3-8474-1512-1 SP - 267 EP - 269 PB - Verlag Barbara Budrich CY - Leverkusen ER - TY - CHAP A1 - Müller, Regine ED - Hobelsberger, Hans T1 - Negotiating with social problems. Professionalism in combatting child poverty in Germany T2 - Social glocalisation and education. social work, health sciences and practical theology perspectives on change Y1 - 2020 SN - 978-3-8474-1512-1 SP - 279 EP - 286 PB - Verlag Barbara Budrich CY - Leverkusen ER - TY - CHAP A1 - Greif, Jakob A1 - Ackermann, David A1 - Kokabi, Omid A1 - Weinzierl, Stefan T1 - Kann man die Form eines Konzertsaales hören? Ein audiovisueller Test in simulierten 3D-Umgebungen [Abstract] T2 - Fortschritte der Akustik – DAGA 2020 - 46. Jahrestagung für Akustik, 16.-19. März 2020, Hannover Y1 - 2020 UR - https://web.archive.org/web/20240707010113/https://pub.dega-akustik.de/DAGA_2020/data/articles/000432.pdf SN - 978-3-939296-17-1 SP - 1153 EP - 1156 PB - Deutsche Gesellschaft für Akustik e.V. ER - TY - JOUR A1 - Ackermann, David A1 - Fiedler, Felicitas A1 - Brinkmann, Fabian A1 - Schneider, Martin A1 - Weinzierl, Stefan T1 - On the Acoustic Qualities of Dynamic Pseudo-Binaural Recordings JF - Journal of the Audio Engineering Society N2 - The motion-tracked binaural (MTB) technique allows the dynamic, pseudobinaural rendering of spatial sound scenes recorded by a circular array of microphones on a rigid sphere. The system provides a multichannel live audio transmission from which a head-related signal with approximated interaural time and level differences can be derived and played via headphones, head tracking, and a corresponding rendering software. The latter is mainly calculating imperceptible interpolation between channel pairs during head movements. This contribution evaluates the potential of this format for the creation of virtual acoustic envi- ronments. Based on the technical realization of a 16-channel MTB array with omnidirectional diffuse field-corrected electret condenser microphone capsules, the plausibility of 8 and 16-channel recordings was tested against a physical sound source. Furthermore, the sound quality of the pseudobinaural rendering was assessed based on different items of the Spatial Audio Quality Inventory (SAQI) compared to a true dynamic binaural reference. The results show that the overall plausibility of the MTB signal with optimal interpolation is close to the reference. Even if there are small differences with respect to tone color and spatial sound source attributes, the degree of externalization and even the perceived source elevation were, despite the absence of pinna cues, well comparable to the true binaural reference. KW - acoustics KW - pseudobinaural recording KW - motion-tracked binaural KW - MTB KW - microphone KW - sound Y1 - 2020 U6 - https://doi.org/10.17743/jaes.2020.0036 SN - 0004-7554 VL - 68 IS - 6 SP - 418 EP - 427 PB - Audio-Engineering Society ER - TY - JOUR A1 - Böhm, Christoph A1 - Ackermann, David A1 - Weinzierl, Stefan T1 - A Multi-Channel Anechoic Orchestra Recording of Beethoven’s Symphony No. 8 op. 93 JF - Journal of the Audio Engineering Society Y1 - 2020 U6 - https://doi.org/10.17743/jaes.2020.0056 VL - 68 IS - 12 SP - 977 EP - 984 PB - Audio-Engineering Society ER - TY - CHAP A1 - Udris, Linards A1 - Jandura, Olaf ED - Mitarbeit, Stiftung T1 - Gute Presse, schlechte Presse? Direkte Demokratie und die Rolle der Medien in der Schweiz T2 - Direkte Demokratie Chancen, Risiken, Herausforderungen KW - Demokratie,Direkte Demokratie,Bürgerbeteiligung,Volksabstimmung Y1 - 2020 SN - 978-3-941143-40-1 SP - 157 EP - 171 PB - Stiftung Mitarbeit CY - Bonn ER - TY - CHAP A1 - Jandura, Olaf ED - Österreichischer Rundfunk, ORF, T1 - Spagat zwischen Kritisch-Engagierten und Sozialautoritären. Die gesellschaftliche Heterogenität als Herausforderung für den öffentlich-rechtlichen Rundfunk. T2 - Informationsdeprivation & News-Avoiding. Eine Herausforderung für Demokratie und öffentlich-rechtliche Medien Y1 - 2020 UR - https://web.archive.org/web/20250813125238/https://zukunft.orf.at/show_content.php?sid=147&pvi_id=2301&pvi_medientyp=t SP - 48 EP - 66 PB - Österreichischer Rundfunk, ORF CY - Wien ER - TY - THES A1 - Krieter, Philipp T1 - Looking Inside - Mobile Screen Recordings as a Privacy Friendly Long-Term Data Source to Analyze User Behavior N2 - Mobile devices are ubiquitous in many societies and shape the way we interact with technology and each other. Research on how we use and perceive technology is essential to understand its impact. This work advances how we can follow user behavior on mobile devices. We combine the strength of two common data sources for tracking on mobile devices, log files, and screen recordings. Log files are suitable for long-term and privacy-friendly analyzation but provide rather general data (e.g. system log files) unless one has access to the source code of the applications or operating systems. Screen recordings are usually used for short-termed analysis (e.g. usability tests) because the analysis is time-consuming, but they provide all activities on the screen in high detail regardless of which application or operating system. This thesis combines both data sources and presents an approach to automatically generate log files from mobile screen recordings. The approach utilizes methods of computer vision and machine learning to automatically process screen recordings and extend their use. Screen recordings reveal virtually everything a user does with a device, making privacy important, especially in user studies. We present a privacy concept and implementation and show how the risk of exposing private data can be reduced, by processing all recordings locally on the mobile devices and anonymizing the resulting log files. In order to apply the developed method in practice, we carry out a study in the context of education and show how log files of screen recordings can complement and extend existing research in learning analytics. This thesis opens up novel perspectives on how we can look at human-computer interaction with mobile devices. We show how to generate long-term log data with high detail and accuracy from mobile screen recordings, in a privacy-friendly way, locally on mobile devices. KW - mobile screen recordings KW - log files KW - learning analytics KW - user behavior KW - privacy Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:46-elib43189 PB - Bremen CY - Universität Bremen ER - TY - CHAP A1 - Krieter, Philipp A1 - Breiter, Andreas ED - Hofhues, Sandra ED - Schiefner-Rohs, Mandy ED - Aßmann, Sandra ED - Brahm, Taiga T1 - Digitale Spuren von Studierenden in virtuellen Lernumgebungen T2 - Studierende – Medien – Universität: Einblicke in studentische Medienwelt N2 - In diesem Beitrag werden die Ergebnisse und der Prozess der LogfileAnalyse im Projekt You(r) Study beschrieben, die zum Ziel hat, die qualitativen Daten des Projekts mit den quantitativen Logdaten eines Learning Management Systems zu verbinden. Mittels deskriptiver Methoden und Clusterbildung werden die Logdaten in Hinblick auf die Fragestellungen des Projekts betrachtet. Außerdem wird kritisch diskutiert, welche Grenzen eine Logfile-Analyse in Bezug zur Zielsetzung hat KW - moodle KW - Logfile-Analyse KW - Learning Analytics KW - Learning Management System Y1 - 2020 SN - 9783830940494 U6 - https://doi.org/10.31244/9783830990499 SP - 131 EP - 152 PB - Waxmann CY - Münster ER - TY - CHAP A1 - Krieter, Philipp A1 - Viertel, Michael A1 - Breiter, Andreas ED - Alario-Hoyos, Carlos ED - Rodríguez-Triana, María Jesús ED - Scheffel, Maren ED - Arnedillo-Sánchez, Inmaculada ED - Dennerlein, Sebastian Maximilian T1 - We Know What You Did Last Semester: Learners’ Perspectives on Screen Recordings as a Long-Term Data Source for Learning Analytics T2 - Addressing global challenges and quality education: 15th European Conference on Technology Enhanced Learning, EC-TEL 2020, Heidelberg, Germany, September 14–18, 2020 Y1 - 2020 SN - 9783030577162 U6 - https://doi.org/10.1007/978-3-030-57717-9_14 SN - 0302-9743 VL - Lecture Notes in Computer Science, vol. 12315 SP - 187 EP - 199 PB - Springer Nature CY - Cham ER -