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

Perceptual references for independent dimensions of speech quality as measured by... 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. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quality and User Experience Springer Journals

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

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Publisher
Springer International Publishing
Copyright
Copyright © 2017 by The Author(s)
Subject
Engineering; Communications Engineering, Networks; User Interfaces and Human Computer Interaction; Behavioral Sciences; Cognitive Psychology; Media Research; Signal,Image and Speech Processing
ISSN
2366-0139
eISSN
2366-0147
D.O.I.
10.1007/s41233-017-0011-8
Publisher site
See Article on Publisher Site

Abstract

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.

Journal

Quality and User ExperienceSpringer Journals

Published: Sep 20, 2017

References

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