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TU Berlin

Inhalt des Dokuments

Dr.-Ing. Friedemann Köster

Lupe

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

Mittag, Gabriel and Köster, Friedemann and Möller, Sebastian (2017). First possible P.SAMD indicators for the estimation of Coloration. , 1–5.


Mittag, Gabriel and Köster, Friedemann, Möller, Sebastian (2017). Noise Robust Voice Activity Detection Based on an Iterative Approach. Fortschritte der Akustik, DAGA 2017: Plenarvortr. u. Fachbeitr. d. 43. Dtsch. Jahrestg. f. Akust.. DEGA, 876–879.


Möller, Sebastian and Guse, Dennis and Köster, Friedemann and Weiss, Benjamin (2017). Sprachqualitäts-Modellierung: Von Konversations-Phasen über Gespräche bis zur Dienstqualität. Fortschritte der Akustik – DAGA 2017: Plenarvortr. u. Fachbeitr. d. 43. Dtsch. Jahrestg. f. Akust.. DEGA, 880–883.



Möller, Sebastian and Köster, Friedemann (2017). Modeling the Overall Conversational Quality Based on the Identified Underlying Perceptual Quality Dimensions. Fortschritte der Akustik – DAGA 2017: Plenarvortr. u. Fachbeitr. d. 43. Dtsch. Jahrestg. f. Akust.. DEGA, 1–4.


Möller, Sebastian and Köster, Friedemann and Weiss, Benjamin (2017). Modelling Speech Service Quality: From Conversational Phases to Communication Quality and Service Quality. Proc. 9th Int. Conf. on Quality of Multimedia Experience (QoMEX). IEEE, 1–3.


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


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)


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 Hillmann, Stefan and Engelbrecht, Klaus-Peter and Hinterleitner, Florian and Köster, Friedemann and Kretzschmar, Florian and Schulz, Matthias and Schaffer, Stefan (2012). Quality Prediction for Speech-based Telecommunication Services. Invited Talk, Colloquium on Quality of Experience in Multimedia Systems and Services


Schiffner, Falk and Möller, Sebastian and Köster, Friedemann (2017). Perceptual dimensions of video quality in the context of video-telephony: Methodology, Experiments, Analysis. , C0095.


Möller, Sebastian and Mittag, Gabriel and Köster, Friedemann and Barriac, Vincent and Côte, Nicolas (2018). Erweiterung der Netzwerkplanung auf super-breitbandige Sprachübertragung. 44. Deutsche Jahrestagung für Akustik (DAGA). Deutsche Gesellschaft für Akustik DEGA e.V., 537–540.


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.


Köster, Friedemann and Guse, Dennis and Wältermann, Marcel and Möller, Sebastian (2015). Comparison between the discrete ACR scale and an extended continuous scale for the quality assessment of transmitted speech. Fortschritte der Akustik – DAGA 2015: Plenarvortr. u. Fachbeitr. d. 41. Dtsch. Jahrestg. f. Akust.. DEGA, 150–153.


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.


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