Second ISCA/DEGA Tutorial and Research Workshop on Perceptual Quality of Systems
In this paper it is analyzed which perceptual dimensions are existent for speech that is transmitted over wideband telephone connections. Therefore, two auditory experiments with subsequent multidimensional analyses (multidimensional scaling and semantic differential) were carried out with a diverse set of mixed narrowband and wideband conditions. This revealed a mapping of the perceptual space with a dimensionality of four. The identified dimensions were labeled "continuity", "distance", "lisping", and "noisiness". By mapping those dimensions onto overall listening quality scores in a linear way, statements regarding the importance of single dimensions could be made for the given context. It turned out that "continuity" is the main contributor for overall listening quality.
Bibliographic reference. Wältermann, Marcel / Raake, Alexander / Möller, Sebastian (2006): "Perceptual dimensions of wideband-transmitted speech", In PQS-2006, 103-108.