1 Scope
2 References
3 Definitions
3.1 Terms defined elsewhere
3.2 Terms defined in this Recommendation
4 Abbreviations and acronyms
5 Conventions
6 General recommendations concerning assessment of spatial audio
telemeeting systems
7 Guidance on appropriate test method
7.1 Decision criteria
7.2 Considerations on the test focus
7.3 Selection of individual test methods
Annex A – Method to collect subjective quality ratings for spatial audio
meetings
A.1 Test facilities
A.2 Conversation tasks and non-interactive stimuli
A.3 Test participants
A.4 Experiment design
A.5 Scales
A.6 Instructions to subjects and training phases
Annex B – Assessing the accuracy of the spatial alignment of audiovisual
systems using spatial audio
B.1 Introduction
B.2 Evaluation criteria concerning audiovisual alignment
B.3 Rendering scenarios affected by audiovisual alignment
Annex C – Listening test method to obtain task performance indicators for the
intelligibility of concurrent speakers
Annex D – Conversation test method for the measurement of communication
effectiveness using task performance
Annex E – Listening test method to obtain task performance indicators for the
cognitive load experienced in spatial audio meetings
E.1 Introduction and scope
E.2 Test method overview
E.3 Speech material
E.4 Quotations
E.6 Test design
E.7 Data validation
E.8 Data analysis
Bibliography