TU Berlin

Quality and Usability LabFriedemann Köster

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Dr.-Ing. Friedemann Köster

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

Research Topics
- Multidimensional Diagnostic Analysis of Conversational Speech Quality

Biography
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.

Projects

Teaching

Speech Communication

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

Telefon:

+49 30 8353 58255
+49 151 14745202

Publications

Köster, Friedemann and Möller, Sebastian (2015). Diagnosing the quality of transmitted speech with expert and naive listeners. Fortschritte der Akustik – DAGA 2015: Plenarvortr. u. Fachbeitr. d. 41. Dtsch. Jahrestg. f. Akust.. DEGA, 143–146.


Köster, Friedemann and Möller, Sebastian (2015). Perceptual Speech Quality Dimensions in a Conversational Situation. Proc. 16th Ann. Conf. of the Int. Speech Comm. Assoc. (Interspeech 2015). ISCA Interspeech 2015 Prceedings, 2544–2548.


Köster, Friedemann and Schiffner, Falk and Guse, Dennis and Ahrens, Jens and Skowronek, Janto and Möller, Sebastian (2015). Towards a MATLAB Toolbox for Imposing Speech Signal Impairments Following the P.TCA Schema. Audio Engineering Society Convention 139. AES, 1–8.


Polzehl, Tim and Naderi, Babak and Köster, Friedemann and Möller, Sebastian (2015). Robustness in Speech Quality Assessment and Temporal Training Expiry in Mobile Crowdsourcing Environments. 16th Ann. Conf. of the Int. Speech Comm. Assoc. (Interspeech 2015). ISCA, 2794–2798.


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 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.


Möller, Sebastian and Köster, Friedemann and Fernández Gallardo, L. and Wagner, Michael (2014). Comparison of Transmission Quality Dimensions of Narrowband, Wideband, and Super-Wideband Speech Channels. Proc. 8th Int. Conf. on Signal Processing and Communication Systems (ICSPCS 2014)


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


Möller, Sebastian and Köster, Friedemann and Fernández Gallardo, L. and Wagner, Michael (2014). Operational Quality Estimator: Comparison of Transmission Quality Dimensions of Narrowband, Wideband, and Super-Wideband Channels.


Möller, Sebastian and Köster, Friedemann (2014). Dimensions of Speech Quality: New Methods for Intrusive and
Non-Intrusive Diagnostic Quality Prediction. Invited Talk, Audiocodes Ltd.


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.


Antons, Jan-Niklas and Köster, Friedemann and Arndt, Sebastian and Möller, Sebastian and Schleicher, Robert (2013). Changes of vigilance caused by varying bit rate conditions. 2013 Fifth International Workshop on Quality of Multimedia Experience (QoMEX). IEEE, 148–151.


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