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TU Berlin

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Dr.-Ing. Sebastian Arndt


Research Field:

  • Quality

Research Topics:
  • Neurotechnology
Current ProjectPast Projects

  Sebastian Arndt is a researcher at the Quality and Usability Lab of the Telekom Innovation Laboratories, TU Berlin. He studied Computer Science at Technische Universität Berlin and received his diploma in 2010. He received his doctoral degree (Dr.-Ing.) in 2015 with the thesis title 'Neural Correlates of Quality During Perception of Audiovisual Stimuli'. His current research focus is on physiological changes during the perception of audiovisual quality. 2012 he was a visiting researcher at MuSAE Lab (Montreal, Canada) in order to work on multimodal neural correlates for synthesized speech.    

Quality and Usability Lab
Deutsche Telekom Laboratories
TU Berlin
Ernst-Reuter-Platz 7
D-10587 Berlin, Germany
+49 30 8353 58328
+49 1709147458    E-Mail: 


The Effects of Text-to-Speech System Quality on Emotional States and Frontal Alpha Band Power
Zitatschlüssel arndt2013a
Autor Arndt, Sebastian and Antons, Jan-Niklas and Gupta, Rishabh and Laghari, K. and Schleicher, Robert and Möller, Sebastian and Falk, Tiago H.
Buchtitel 2013 6th International IEEE/EMBS Conference on Neural Engineering (NER)
Seiten 1–4
Jahr 2013
ISSN 1948-3546
DOI 10.1109/NER.2013.6695978
Ort San Diego, CA, USA
Monat nov
Notiz Electronic/online
Verlag IEEE
Wie herausgegeben Full
Zusammenfassung The tolerance limit for acceptable multimediaquality is changing as more and more high quality servicesapproach the market. Thus, negative emotional reactions toward slow quality services may cause user disappointment and are likely to increase churn rate. The current study analyzeshow different levels of synthetic speech quality, obtained from different text-to-speech (TTS) systems, affect the emotional response of a user. This is achieved using two methods: subjective, by means of user reports; and neurophysiological by means of electroencephalography (EEG) analysis. More specifically, we analyzed the frontal alpha band power and correlated this with the subjective ratings based on the Self-Assessment Manikin scale. We found an increase in neuronal activity in the left frontal area with decreasing quality and argue that this is due to user disappointment with low quality TTS systems as they become harder to understand.
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