Quality assessment tool

Details Quality assessment tool Quality assessment tool

2004-01-14

2009-10-20

Hudspeth, David R (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S228000

Reexamination Certificate

active

07606704

ABSTRACT:
A non-intrusive speech quality assessment system. A method and apparatus for training a quality assessment tool in which a database comprising a plurality of samples, each with an associated mean opinion score, is divided into a plurality of distortion sets of samples according to a distortion criterion; and a distortion specific assessment handler for each distortion set is trained, such that a fit between a distortion specific quality measure generated from a distortion specific plurality of parameters for a sample and the mean opinion score associated with said sample is optimised. A method and apparatus for assessing speech quality in a telecommunications network in which a dominant distortion type is determined for a sample; a distortion specific plurality of parameters are combined to provide a distortion specific quality measure for each sample; and a quality measure is generated in dependence upon the distortion specific quality measure.

REFERENCES:
patent: 5794188 (1998-08-01), Hollier
patent: 6446038 (2002-09-01), Bayya et al.
patent: 6609092 (2003-08-01), Ghitza et al.
patent: 7024362 (2006-04-01), Chu et al.
patent: 7162011 (2007-01-01), Kolligs et al.
patent: WO 01/35393 (2001-05-01), None

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