�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��� �The reference television chain�������
������ �6.1��� �Television program production�������
������ �6.2��� �Primary distribution
������ �6.3��� �Secondary distribution�������
������ �6.4��� �Presentation�����������
�7��� �Main causes for loss of lip-sync����
�8��� �User requirements for operational monitoring��������
������ �8.1��� �Operational aspect�
������ �8.2��� �Measurement aspect����������
Appendix I � Perceptual limits for lip-sync errors��� �
Appendix II � Detection and adjustment of lip-sync errors��� �
����� �II.1��� �Perceptual
verification of lip-sync along television chains������
����� �II.2��� �Maintaining lip-sync
along the television chain � The ideal solution���
����� �II.3��� �Maintaining lip-sync
along the television chain � A practical approximate solution��� �