RECOMMENDATION ITU-R BS.1534 - Method for the subjective assessment of intermediate audio quality
ANNEX 1
1 Introduction
2 Scope, test motivation and purpose of new method
3 Experimental design
4 Selection of subjects
    4.1 Criteria for selecting subjects
    4.2 Size of listening panel
5 Test method
    5.2 Training phase
6 Attributes
    6.1 Monophonic system
    6.2 Stereophonic system
    6.3 Multichannel system
7 Test material
8 Listening conditions
9 Statistical analysis
10 Test report and presentation of results
    10.1 General
    10.2 Contents of the test report
    10.3 Presentation of the results
    10.4 Absolute grades
    10.5 Significance level and confidence interval
References
APPENDIX 1 TO ANNEX 1 - Instructions to be given to subjects
1 Familiarization or training phase
2 Blind grading phase