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Convention Paper

Descriptive Analysis and Ideal Point Modelling of Speech Quality in Mobile Communication

Authors: Mattila, Ville-Veikko

AES Convention 113 · Paper 5704 · October 2002

Abstract

Descriptive analysis of processed speech quality was carried out by semantic differentiation and external preference mapping was used to relate the attributes to overall quality judgements. Clean and noisy speech samples from different speakers were processed by various processing chains representing mobile communications, resulting in a total of 170 samples. The perceptual characteristics of the test samples were described by 18 screened subjects and the final descriptive language with 21 attributes were developed in panel discussions. The scaled attributes were mapped to overall quality evaluations collected from 30 screened subjects by partial least square regression. The Phase II ideal point modelling was used to predict the quality with an average error of about 6 % and to study the linearity of the attributes.

Details

Published in
AES Convention 113
AES Convention
113
Paper number
5704
Publication date
October 6, 2002
Session subject
Psychoacoustics
Affiliation
Nokia Research Center, Tampere, Finland (See document for exact affiliation information.)
Type
Convention Paper