Content for TR 26.918 Word version: 18.0.0
6 Audio quality evaluation
6.1 Audio quality evaluation of scene-based formats
6.2 Audio quality evaluation of object-based formats
6.3 Audio quality evaluation of channel-based formats
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6 Audio quality evaluation p. 50
6.1 Audio quality evaluation of scene-based formats p. 50
6.1.1 Introduction p. 50
6.1.2 Report of one ITU-R BS.1534-3 binaural listening test for basic audio quality of encoded scene-based audio content with non-individualized HRTF and non-equalized headphones p. 51
6.1.3 Report of one ITU-R BS.1534-3 binaural listening test for Localization quality of synthetic scene-based audio content with non-individualized HRTF and non-equalized headphones p. 54
6.1.4 Test of the ISO/IEC 23008-3 MPEG-H 3D Audio scene-based coding scheme p. 56
6.1.5 Listening test for synthetic scene-based audio content with loudspeaker rendering assessing overall and localization quality with written audio scene descriptions as reference p. 56
6.1.5.1 Introduction p. 56
6.1.5.2 Objectives p. 56
6.1.5.3 Test methodology p. 57
6.1.5.4 Physical test setup p. 57
6.1.5.5 Test material p. 58
6.1.5.6 Test conditions p. 58
6.1.5.7 Listening panel p. 59
6.1.5.8 Software p. 59
6.1.5.9 Test results p. 60
6.1.5.10 Conclusions p. 63
6.1.6 Report of one test on encoding First-Order Ambisonics with 3GPP enhanced AAC+ with loudspeakers and with non-individualized HRTF and non-equalized headphones p. 63
6.1.6.1 Introduction p. 63
6.1.6.2 Test Method p. 64
6.1.6.3 Processing First-Order Ambisonics for Stereo eAAC+ Encoding p. 65
6.1.6.4 Results p. 67
6.1.6.5 Conclusions p. 69
6.1.7 Listening test for coding of First-Order Ambisonics using the EVS codec with loudspeaker rendering p. 69
6.1.7.1 Introduction p. 69
6.1.7.2 Objectives p. 69
6.1.7.3 Test methodology p. 70
6.1.7.4 Physical test setup p. 70
6.1.7.5 Test material p. 71
6.1.7.6 Test conditions p. 72
6.1.7.7 Listening panel p. 74
6.1.7.8 Software p. 74
6.1.7.9 Test results for A- and B-format pre-test p. 74
6.1.7.10 Test results for main test p. 76
6.1.7.11 Complexity p. 78
6.1.7.12 Conclusions p. 78
6.2 Audio quality evaluation of object-based formats p. 79
6.3 Audio quality evaluation of channel-based formats p. 79
