Recommendation ITU-T P.581 (07/2022) Use of head and torso simulator for hands-free and handset terminal testing
Summary
History
FOREWORD
Table of Contents
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 Test arrangement
     6.1 General
     6.2 Positioning of the HATS
          6.2.1 Desktop speakerphone
          6.2.2 Other types of speakerphone terminals
7 Acoustic characteristics
     7.1 Sound pick-up
     7.2 Calibration of the artificial mouth of the HATS
          7.2.1 Handset and headset terminals
          7.2.2 Loudspeaking and speakerphone terminals
     7.3 Equalization of HATS for test of receive characteristics
          7.3.1 Loudspeaking and hands-free terminals
          7.3.2 Handset and headset terminals
     7.4 Combination of left and right ear receive sensitivity
          7.4.1 Loudspeaking and speakerphone terminals
          7.4.2 Handset and headset terminals
8 Application of HATS for the calibration of headphones used for subjective evaluation procedures
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