CONTENTS

 1     Scope
 2     Assessment method
        2.1     General
        2.2     Main features of the recommended method
 3     Test preparation
        3.1     Speech material
        3.2     Source conditions
        3.3     Stimulus preparation
 4     Design of experiment
        4.1     Subject task
        4.2     Rating scales
        4.3     Experimental design
        4.4     Listening test procedure
 5     Statistical analysis and reporting the results
 6     Other Methods
Annex A – Messages
Annex B – Response sheets
Annex C – Evaluation of synthetic speech: instructions for listeners
References
Bibliography