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TU Berlin

Inhalt des Dokuments

Dr.-Ing. Friedemann Köster


Research Field
- Quality of Speech and Audio
- Speech- and Signal Processing 

Research Topics
- Multidimensional Diagnostic Analysis of Conversational Speech Quality

Friedemann Köster studied Industrial Engineering at the Christian-Albrechts-University of Kiel. In 2012 he finished his studies and received his Dipl.-Wirtsch.-Ing. degree. Currently he is working as a research assistant at the Quality and Usability Lab of Deutsche Telekom Laboratories, TU-Berlin, where he also works towards a Phd degree in the field of quality.



Speech Communication

Quality and Usability Lab
Deutsche Telekom Laboratories
TU Berlin
Ernst-Reuter-Platz 7
D-10587 Berlin, Germany


+49 30 8353 58255
+49 151 14745202


Naderi, Babak and Möller, Sebastian and Neubert, Frank and Höller, Victor and Köster, Friedemann and Fernández Gallardo, Laura (2017). Influence of environmental background noise on speech quality assessments task in crowdsourcing microtask platform. The Journal of the Acoustical Society of America. ASA, 3909–3910.

Köster, Friedemann and Schiffner, Falk and Möller, Sebastian and Malfait, Ludovic (2017). Towards degradation decomposition for voice communication system assessment. Quality and User Experience. Springer International Publishing, 4.

Möller, Sebastian and Köster, Friedemann (2017). Review of recent standardization activities in speech quality of experience. Quality and User Experience. Springer, 1–18.

Köster, Friedemann and Guse, Dennis and Möller, Sebastian (2017). Identifying Speech Quality Dimensions in a Telephone Conversation. Acta Acustica united with Acustica. S. Hirzel Verlag, 506–522.

Köster, Friedemann and Möller, Sebastian and Antons, Jan-Niklas and Arndt, Sebastian and Guse, Dennis and Weiss, Benjamin (2014). Methods for Assessing the Quality of Transmitted Speech and of Speech Communication Services. Acoustics Australia. Australian Acoustical Society, 179–184.

Arndt, Sebastian and Wenzel, Markus and Antons, Jan-Niklas and Köster, Friedemann and Möller, Sebastian and Curio, Gabriel (2014). A Next Step Towards Measuring Perceived Quality of Speech Through Physiology. 15th Annual Conference of the International Speech Communication Association (Interspeech 2014). ISCA, 1998–2001.

Köster, Friedemann and Barriac, Vincent and Möller, Sebastian (2014). P.AMD High Level Block Diagram for Set A.

Köster, Friedemann and Mittag, Gabriel and Möller, Sebastian (2014). Referenzfreie Schätzung der perzeptuellen Dimension Rauschhaftigkeit von Übertragener Sprache. Fortschritte der Akustik – DAGA 2014: Plenarvortr. u. Fachbeitr. d. 40. Dtsch. Jahrestg. f. Akust.. DEGA, 501–502.

Köster, Friedemann and Mittag, Gabriel and Möller, Sebastian (2017). Modeling the Overall Quality of Experience on the Basis of Underlying Quality Dimensions. Ninth International Conference on Quality of Multimedia Experience (QoMEX). IEEE, 1–6.

Köster, Friedemann and Möller, Sebastian (2014). Analyzing Perceptual Dimensions of Conversational Speech Quality. Proc. 15th Ann. Conf. of the Int. Speech Comm. Assoc. (Interspeech 2014). ISCA Interspeech 2014 Prceedings, 2041–2045.

Köster, Friedemann and Mittag, Gabriel and Möller, Sebastian (2017). First possible P.SAMD indicators for the estimation of Noisiness. , 1–7.

Köster, Friedemann and Möller, Sebastian (2014). Standards for diagnosing the quality of transmitted speech and their improvements. Globecom 2014 Workshop - Telecommunications Standards - From Research to Standards. IEEE Globecom 2014 Proceedings.

Köster, Friedemann and Möller, Sebastian (2017). First Test Results and Interrater Agreement for P.CQS. , 1–8.

Köster, Friedemann and Möller, Sebastian (2017). First test results and interrater agreement for P.CQO. , 1–7.

Köster, Friedemann and Möller, Sebastian and Skowronek, Janto (2014). P.TCA GUI and naive annotators experiment.

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