Dr.-Ing. Sebastian Arndt

[1]

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[2]

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Research Field:

• Quality

Research Topics:

• Neurotechnology

Current Project

•  PflegeTab [3]

Past Projects

• prometei [4]
• HC3 [5]

Biography:
  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.    
Address:

Quality and Usability Lab
Deutsche Telekom Laboratories
TU Berlin
Ernst-Reuter-Platz 7
D-10587 Berlin, Germany
Telefon:
+49 30 8353 58328
+49 1709147458    E-Mail: sebastian.arndt@telekom.de [6]

Publications

Perceptual references for independent dimensions of speech quality as measured by electroencephalography

Zitatschlüssel	uhrig2017a
Autor	Uhrig, Stefan and Arndt, Sebastian and Möller, Sebastian and Voigt-Antons, Jan-Niklas
Seiten	1–17
Jahr	2017
ISSN	2366-0147
DOI	10.1007/s41233-017-0011-8
Adresse	Heidelberg, Germany
Journal	Quality and User Experience
Jahrgang	2
Nummer	1
Monat	sep
Notiz	Print, Online
Verlag	Springer International Publishing
Wie herausgegeben	Full
Zusammenfassung	Quality of transmitted speech can be decomposed into three perceptual dimensions: Noisiness, coloration and discontinuity (Wältermann, Dimension-based quality modeling of transmitted speech. Springer, Berlin. doi:10.1007/978-3-642-35019-1, 2013). The purpose of the present study was to explore whether degradation of speech quality on each perceptual dimension affected the morphological and temporal characteristics of the P300 event-related brain potential (ERP) component. The P300 is composed of two subcomponents, P3a and P3b, which served as neurophysiological indicators of distinct processes in human quality perception (Polich, Neuropsychology of P300. Oxford University Press, Oxford. doi:10.1093/oxfordhb/9780195374148.013.0089, 2012; Raake and Egger, Quality and quality of experience. Springer International Publishing, Cham, pp. 11–33, 2014): While the earlier P3a reflects attentional processing after the occurrence of novel sensory events, the later P3b is associated with memory operations following the detection of task-relevant stimuli. Electroencephalography (EEG) was used to record the electrical brain activity of subjects ($$N = 24$$N=24) performing a three-stimulus oddball task. Degraded stimuli were generated from the audio recording of a spoken word. The analysis of P3a- and P3b-related activity at electrode positions Fz, Cz and Pz provided support for the existence of different perceptual references for quality-impaired vs. high-quality stimulus contexts as well as quality degradations on single perceptual dimensions.

Link zur Originalpublikation [7] Download Bibtex Eintrag [8]

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