Speech Quality Engineering
Test methods for wideband speech quality engineering
Motivation & Project Description
- Development of test methods for subjective evaluation of speech quality, e.g. multidimensional analyses, call-quality assessment, etc.
- Development of enhanced parametric and signal-based models for the prediction of wideband speech quality:
- Extension of the E-Model towards wideband speech, based on perceptual dimensions
- Development of a signal-based model for estimating overall quality as well as perceptually relevant dimensions
- Development of an overall engineering approach for quantifying and monitoring wideband speech quality in an end-to-end scenario (together with INET)
Expected Outcome:
- Wideband E-model for planning and monitoring wideband speech networks
- Evaluation and improvement of a signal-based model developed by T-Labs, France Télécom R&D, and Kiel University
- ITU-T contributions and recommendations (ITU-T SG 12, Q.8/12 and Q.9/12)
- Scientific publications
- Project outcome directly applicable to other projects (e.g., HiQ Voice, Mobisense goes Video)
Time Frame: 01/2009-12/2010
T-labs Team Members: Nicolas Côté, Blazej Lewcio, Sebastian Möller,
Alexander Raake, Marcel Wältermann
Students: Katrin Bieker
Funding by: Deutsche Telekom Laboratories