CONTENTS

Policy on Intellectual Property Right (IPR)
Annex 1
†1†††† General
††††††† 1.1†††† Contents
†2†††† Experimental design
†3†††† Selection of listening panels
††††††† 3.1†††† Expert listeners
††††††† 3.2†††† Criteria for selecting subjects
†††††††† †††††††††3.2.1†††† Pre-screening of subjects
††††††††††††††††† 3.2.2†††† Post-screening of subjects
††††††† 3.3†††† Size of listening panel
†4†††† Test method
††††††† 4.1†††† Familiarization or training phase
††††††† 4.2†††† Grading phase
†5†††† Attributes
††††††† 5.1†††† Monophonic system
††††††† 5.2†††† Two-channel stereophonic system
††††††† 5.3†††† Multichannel stereophonic system
††††††† 5.4†††† Advanced sound system
†6†††† Programme material
†7†††† Reproduction devices
††††††† 7.1†††† General
††††††† 7.2†††† Reference monitor loudspeaker
††††††††††††††††† 7.2.1†††† General
††††††††††††††††† 7.2.2†††† Electro-acoustic requirements
††††††† 7.3†††† Reference monitor headphones
††††††††††††††††† 7.3.1†††† General
††††††††††††††††† 7.3.2†††† Electro-acoustical requirements
†8†††† Listening conditions
††††††† 8.1†††† General
††††††† 8.2†††† Reference listening room
††††††††††††††††† 8.2.1†††† General
††††††††††††††††† 8.2.2†††† Geometric properties
††††††††††††††††† 8.2.3†††† Room acoustical properties
††††† ††8.3†††† Reference sound field conditions
††††††††††††††††† 8.3.1†††† General
††††††††††††††††† 8.3.2†††† Direct sound
††††††††††††††††† 8.3.3†††† Reflected sound
††††††††††††††††† 8.3.4†††† Steady state sound field
††††††† 8.4†††† Listening level
†††††† †††††††††††8.4.1†††† Loudspeaker reproduction
††††††††††††††††† 8.4.2†††† Headphone reproduction
††††††† 8.5†††† Listening arrangements
††††††††††††††††† 8.5.1†††† General
††††††††††††††††† 8.5.2†††† Monophonic reproduction
††††††††††††††††† 8.5.3†††† Two-channel stereophonic reproduction
††††††††††††††††† 8.5.4†††† Multichannel stereophonic reproduction
††††††††††††††††† 8.5.5†††† Reproduction of advanced sound system
†9†††† Statistical analysis
10†††† Presentation of the results of the statistical analyses
†††††† 10.1†††† General
†††††† 10.2†††† Absolute grades
†††††† 10.3†††† Difference grades
†††††† 10.4†††† Significance level and confidence interval
11†††† Contents of test reports
Attachment 1 to Annex 1† Statistical considerations for the post-screening of subjects
†1†††† Evaluation of listener expertise
†2†††† Further evaluation of listener expertise
Attachment 2 to Annex 1† Evaluating a subjectís level of expertise
Attachment 3 to Annex 1† Example of instructions to subjects
†1†††† Familiarization or training phase
†2†††† Example for contents of a training phase
†3†††† Blind grading phase
Attachment 4 to Annex 1† Subjective assessment: Glossary