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Convention Paper

Reference Units for the Comparison of Speech Quality Test Results

Authors: Côté, Nicolas; Koehl, Vincent; Gautier-Turbin, Valérie; Raake, Alexander; Möller, Sebastian

AES Convention 126 · Paper 7784 · May 2009

Abstract

Subjective tests are carried out to assess the quality of an entity as perceived by a user. However, several characteristics inherent to the subject or to the test methodology might influence the user’s judgments. As a result, reference conditions are usually included in subjective tests. In the field of quality of transmitted speech, reference conditions correspond to a speech sample impaired by a known amount of degradation. In this paper, several kinds of reference conditions and the process used for their production are presented. Examples of the corresponding normalization procedure for each kind of reference are given.

Details

Published in
AES Convention 126
AES Convention
126
Paper number
7784
Publication date
May 6, 2009
Session subject
Assessment and Evaluation
Affiliation
Ecole Nationale d'Ingénieurs de Brest, Plouzané, France; France Telecom R&D, Lannion, France; Deutsche Telekom Laboratories, Berlin, Germany; Université de Brest, Plouzané, France (See document for exact affiliation information.)
Type
Convention Paper