ESSV Konferenz Elektronische Sprachsignalverarbeitung

Title: Relationship Between Root Causes of Impairments and Perceptual Quality Dimensions of Super-wideband Transmitted Speech

Authors: Sebastian Möller, Tobias Hübschen, Gabriel Mittag, Gerhard Schmidt


For diagnosing quality degradations in speech transmission and communication services, auditory degradation decompositions by quantifying perceptual quality dimensions have been established. However, it is still unclear which technical characteristics of the underlying systems are the root causes for each perceptual degradation. In order to investigate the relationship between perceptual quality dimensions and technical root causes, 8 databases of super-wideband transmitted speech samples judged regarding 3 or 4 perceptual quality dimensions have been analyzed. The results show that each perceptual dimension is triggered by a variety of (plausible) root causes. In turn, several root causes trigger more than one perceptual quality dimension. Implications of these findings for instrumentally estimating perceptual quality dimensions are discussed.

Year: 2020
In session: Quality
Pages: 278 to 286