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Table 2 Description of the audio and quality levels used for the audiovisual experiments

From: Audiovisual quality integration for interactive communications

Video quality levels Exp. 1 Exp. 2 Audio quality levels Exp. 1 Exp. 2
Lv1 2 at 5% x x La1 NB at 20% x x
Lv2 0.4 at 3% x x La2 WB at 20% x x
Lv3 2 at 0.5% x - La3 NB at 4% x -
Lv4 0.4 at 0% x - La4 NB at 0% x x
Lv5 0.77 at 0.5% x - La5 WB at 7% x -
Lv6 0.77 at 0% x x La6 WB at 3% x x
Lv7 2 at 0% x x La7 WB at 0% x x