Table 3 Subjective score (MOS-LQS) statistics, separately for the English and French speech files, for the wireless-VoIP, reference, and conventional VoIP degradation conditions.
From: Performance Study of Objective Speech Quality Measurement for Modern Wireless-VoIP Communications
Statistic | Wireless-VoIP | Reference | VoIP | |||
|---|---|---|---|---|---|---|
| Â | English | French | English | French | English | French |
Minimum | 1.05 | 1.02 | 1.30 | 1.11 | 2.52 | 2.09 |
Maximum | 3.80 | 4.20 | 4.70 | 4.67 | 4.55 | 4.40 |
Average | 2.43 | 2.42 | 3.77 | 3.63 | 3.67 | 3.36 |
Standard deviation | 0.50 | 0.61 | 0.89 | 0.91 | 0.45 | 0.53 |