11th Annual Conference of the International Speech Communication Association

Makuhari, Chiba, Japan
September 26-30. 2010

An Intrusive Super-Wideband Speech Quality Model: DIAL

Nicolas Côté (1), Vincent Koehl (1), Valérie Gautier-Turbin (2), Alexander Raake (3), Sebastian Möller (3)

(1) LISyC, France
(2) Orange Labs, France
(3) Deutsche Telekom Laboratories, Germany

The intrusive speech quality model standardized by the ITU-T shows some limits in its quality predictions, especially in a wideband transmission context. They are mainly caused by strong differences in perceived quality when speech is transmitted over different telephone networks. Instrumental methods should provide reliable estimations of the integral speech quality over the entire perceptual speech quality space. This paper presents a new model, called Diagnostic Instrumental Assessment of Listening quality (DIAL). It combines a core model, four dimension estimators and a cognitive model, providing integral quality estimations as well as diagnostic information in a super-wideband context.

Full Paper

Bibliographic reference.  Côté, Nicolas / Koehl, Vincent / Gautier-Turbin, Valérie / Raake, Alexander / Möller, Sebastian (2010): "An intrusive super-wideband speech quality model: DIAL", In INTERSPEECH-2010, 1317-1320.