IEC TR 60268-13:1998

FOREWORD
1 General
  1.1 Scope
  1.2 Reference documents
  1.3 Explanation of terms
2 Listening conditions
  2.1 Listening room
      2.1.1 Room dimensions
      2.1.2 Reverberation time
      2.1.3 Environmental conditions
  2.2 Loudspeaker position and orientation
      2.2.1 Monophonic reproduction
      2.2.2 Two-channel stereophonic reproduction
      2.2.3 Multi-channel stereophonic reproduction
  2.3 Listening position
  2.4 Level setting
      2.4.1 Listening level
      2.4.2 Relative level
  2.5 Electrical requirements
      2.5.1 Signal source and amplifiers
      2.5.2 Switching system
      2.5.3 Connections
      2.5.4 Overall frequency response
3 Listeners
4 Programme material
5 Experimental procedure and evaluation
  5.1 Experimental procedure
      5.1.1 Single stimulus ratings procedure
      5.1.2 Paired ratings and paired comparisons procedures
  5.2 Rating scales and perceptual attributes
      5.2.1 Rating scales
      5.2.2 Perceptual attributes and their definitions for
            this report
  5.3 Test duration
  5.4 Instructions and preliminary trials
  5.5 Statistical treatment of the data
6 Test report
Annexes
A - Instructions for listening tests
B - Statistical treatment of the data from listening tests

Gives recommendations for establishing, conducting and evaluating listening tests on loudspeakers, as well as general guidelines.