Table 7 Packet-loss robustness factors 
derived from Databases 1, 3, 4, and 5 (random packet losses). Conditions refers to the number of packet-loss conditions used to derive the 
parameters.
derived from Databases 1, 3, 4, and 5 (random packet losses). Conditions refers to the number of packet-loss conditions used to derive the 
parameters.From: Instrumental Estimation of E-Model Parameters for Wideband Speech Codecs
Codec | Bit-rate | Databases | Average | ||||
|---|---|---|---|---|---|---|---|
(kbit/s) | (conditions) | WB-PESQ | TOSQA-2001 | Mod. WB-PESQ | Average | Auditory test | |
G.722 | 64 | 3(5), 4(5) | 2.8 | 8.5 | 3.1 | 4.8 | 1.6 |
G.722.1 | 32 | 3(5), 4(5), 5(4) | 6.3 | 9.7 | 5.5 | 7.1 | 6.3 |
G.722.1 | 24 | 1(3), 3(5), 4(5) | 8.4 | 13.2 | 8.0 | 9.9 | 6.2 |
G.722.2 | 6.6 | 4(5) | 7.8 | 15.4 | 7.8 | 10.3 | 6.6 |
G.722.2 | 8.85 | 4(5), 5(4) | 5.8 | 11.3 | 5.7 | 7.6 | 5.6 |
G.722.2 | 12.65 | 4(5), 5(4) | 5.5 | 11.2 | 5.7 | 7.5 | 5.2 |
G.722.2 | 14.25 | 4(5) | 8.1 | 14.0 | 7.9 | 10.0 | 7.5 |
G.722.2 | 15.85 | 3(5), 4(5) | 7.9 | 11.2 | 7.3 | 8.8 | 7.8 |
G.722.2 | 18.25 | 4(5) | 7.9 | 14.9 | 7.9 | 10.3 | 7.6 |
G.722.2 | 19.85 | 4(5) | 7.9 | 15.8 | 8.0 | 10.6 | 8.1 |
G.722.2 | 23.05 | 4(5) | 7.9 | 15.7 | 7.9 | 10.5 | 9.5 |
G.722.2 | 23.85 | 3(5), 4(5), 5(4) | 5.6 | 10.0 | 5.6 | 7.1 | 5.2 |
G.729EV | 32 | 5(4) | 5.2 | 13.9 | 9.0 | 9.4 | 9.4 |
G.729EV | 24 | 5(4) | 5.6 | 16.0 | 8.4 | 10.0 | 10.0 |
value
G.729EV refers to the prepublished version of the ITU-T Rec. G.729.1 [7] standard.
G.729EV refers to the prepublished version of the ITU-T Rec. G.729.1 [