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 Existing loudness model structures
6.1 Zwicker model for stationary sound
6.2 Moore and Glasberg model for stationary sound
6.3 Zwicker and Fastl model for non-stationary sound
6.4 Glasberg and Moore for non-stationary sound
7 Reasons for a new universal loudness model
8 Loudness model for receiving loudness
8.1 Recording of speech signals
8.2 Loudness calculation
8.3 Application for terminals
9 Loudness model for sending loudness
10 Loudness model for sidetone loudness
11 Loudness model for listener sidetone loudness
Annex A – Validation and test vectors for loudness model implementation
A.1 Introduction to test vectors for validation
A.2 Validation of loudness model implementation
A.3 Validation of speech pause detection and loudness model
implementation
Appendix I – Result of loudness experiment A
I.1 Introduction to experiment A
I.2 Subjective experiment
I.3 Comparison results
I.4 Conclusion
Appendix II – Result of loudness experiment B
II.1 Introduction to loudness experiment B
II.2 Measurement set-up
II.3 Auditory loudness assessment
II.4 Instrumental loudness methods
II.5 Auditory results
II.6 Direct loudness model output
II.7 Conclusions
Appendix III – Result of loudness experiment C
III.1 Introduction to loudness experiment C
III.2 Subjective experiment
III.3 Results and comparison to ISO 532-1 objective results
III.4 Conclusion
Appendix IV – Nominal transmission paths
IV.1 Nominal receive paths
Bibliography