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

Methods for Assessing the Quality of Transmitted Speech and of Speech Communication Services
Zitatschlüssel koester2014f
Autor Köster, Friedemann and Möller, Sebastian and Antons, Jan-Niklas and Arndt, Sebastian and Guse, Dennis and Weiss, Benjamin
Seiten 179–184
Jahr 2014
ISSN 0814-6039
Journal Acoustics Australia
Jahrgang 42
Nummer 3
Monat December
Notiz Print/Online
Verlag Australian Acoustical Society
Wie herausgegeben Full
Zusammenfassung The quality of transmitted speech is the major indicator for telecommunication providers to classify their services. As a result, the assessment of quality is of high scientific and economic importance, and corresponding methods for assessing the quality of transmitted speech have been in the focus of multiple studies in the past. In this contribution, traditional methods are reviewed, their weaknesses are identified and improvements and extensions are proposed. The presented work covers subjective, diagnostic, instrumental, and physiological methods, as well as possibilities for evaluating long-term quality aspects.
Link zur Publikation Link zur Originalpublikation Download Bibtex Eintrag

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