1 Scope
2 References
3 Definitions
3.1 Terms defined elsewhere
3.2 Terms defined in this Recommendation
4 Abbreviations and acronyms
5 Test arrangement
5.1 General
5.2 Positioning of the HATS
6 Acoustic characteristics
6.1 Sound pick-up
6.2 Calibration of the artificial mouth of the HATS
6.3 Equalization of HATS for test of receive characteristics
6.4 Combination of left and right ear receive sensitivity
7 Application of HATS for calibration of headphones used for subjective
evaluation procedures