AES 20 : 1996(R2007)

Foreword
1 Scope
  1.1 Object
  1.2 Application
2 Normative references
3 Terminology
4 Room requirements
  4.1 Size and shape
  4.2 Acoustics
5 Listening arrangement
  5.1 Listening distance and loudspeaker separation
  5.2 Loudspeaker locations
  5.3 Early reflections
  5.4 Listening locations
  5.5 Loudspeakers requiring special mounting
6 Program material
  6.1 Media
  6.2 Core selections
  6.3 Technical signals
  6.4 Source of selections
  6.5 Listening sequence
7 Test procedure
  7.1 Associated equipment
  7.2 Playback Level
  7.3 Loudness matching
  7.4 Anchor loudspeakers
  7.5 Single-loudspeaker listening
  7.6 Listening locations
  7.7 Listeners
  7.8 Critical listening
  7.9 Critical checklist
  7.10 Blind testing
  7.11 Testing several loudspeakers at once
  7.12 Reporting of results
Annex A Guidelines for choosing loudspeaker and listener
        locations
      A.1 Loudspeaker locations
      A.2 Listener locations
      A.3 Loudspeaker measurements
Annex B Listening arrangement
Annex C Loudspeaker-system evaluation form
      C.1 Terminology
      C.2 Recommended form for listener's evaluations
Annex D Informative references and bibliography

Applies to the subjective evaluation of sound reproduction of loudspeakers in domestic listening environments and in professional environments of similar acoustics. The recommendations apply most directly to user-installed free-standing and in-wall loudspeakers.