Page 38 of 51
OptoFidelity Video Multimeter
– User Manual
Numerical values for frame and lip sync are visible at the bottom of the detailed view
by selecting a frame. See examples in Figure 39.
Figure 39. Single frame details.
11.4
MOS Configuration (OptoFidelity default)
The Mean Opinion Score (MOS) is calculated separately for each individual result. The
default configuration for each MOS value is described in Table 1. Raw values are given
a corresponding MOS value, and values between raw values are interpolated linearly.
Result
Result identifier in mos.ini file Unit Raw value MOS
FPS jerkiness
PrimaryFrameJerkiness/
SecondaryFrameJerkiness
ms
33.3
5.0
40.0
4.5
83.3
3.5
200.0
2.2
300.0
1.0
FPS jitter
PrimaryFrameJitter/
SecondaryFrameJitter
ms
1
5.0
10
2.5
20
1.0
Dropped frames
DroppedFrames
s
1
1.0
5
4.0
10
5.0
Lip sync
average
Lip syncDelay
ms
-54
1.0
-27
3.0
0
5.0
75
3.0
150
1.0
Lip sync jitter
Lip syncJitter
ms
10
5.0
30
3.0
100
1.0
Latency average
LatencyDelay
ms
200
5.0
