This paper describes an objective speech quality assessment method developed for the Hungarian NMT-450 mobile telephone system. The method is based on a psychoacoustic front end followed by a cognitive modeling component. Special problems of the NMT system, such as hand-overs, the effects of automatic gain control (AGC) and intrusion of signaling noise are addressed in the cognitive module. Correlation of the subjective and objective quality measures is maximized by finding a transformation that linearizes their relationship. A correlation of 0.94 is achieved on an independent test set between the subjective speech quality and the proposed objective quality measure.
Cite as: Szarvas, M., Fegyó, T., Tatai, P., Gordos, G. (1999) Qualiphone-a: a perceptual speech quality evaluation system for analog mobile networks. Proc. 6th European Conference on Speech Communication and Technology (Eurospeech 1999), 2563-2566, doi: 10.21437/Eurospeech.1999-563
@inproceedings{szarvas99_eurospeech,
author={M. Szarvas and T. Fegyó and P. Tatai and Géza Gordos},
title={{Qualiphone-a: a perceptual speech quality evaluation system for analog mobile networks}},
year=1999,
booktitle={Proc. 6th European Conference on Speech Communication and Technology (Eurospeech 1999)},
pages={2563--2566},
doi={10.21437/Eurospeech.1999-563}
}