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OptoFidelity Video Multimeter
– User Manual
400
2.0
550
1.0
Latency jitter
LatencyJitter
ms
10
5.0
100
3.0
300
1.0
Table 1. MOS default configuration
The MOS configuration is changed by editing the mos.ini file that is found in the Video
Multimeter file system in the frm folder. See the instructions for accessing Video
Multimeter files in Chapter 5.
The Configuration file mos.ini is a text file that can be changed with any text editor.
The file has the following format:
•
[ResultName] defines the result item.
•
Lines starting with ‘;’ character are comment files.
•
Other rows have the format: raw_value = MOS_value.
•
Values between rows will be interpolated linearly.
The Composite MOS value is a weighted average of individual results. Relative weights
can be edited in the mos.ini file. The default weights for Composite MOS in mos.ini
format are shown below.
[ResultName]
; Description of Result
100.0 = 5.0
0.0 = 1.0
[Weights]
; Relative weights of the components for composite MOS.
PrimaryFrameJerkiness = 1.0
PrimaryFrameJitter = 1.0
SecondaryFrameJerkiness = 1.0
SecondaryFrameJitter = 1.0
DroppedFrames = 1.0
Lip syncDelay = 1.0
Lip syncJitter = 0.0
LatencyDelay = 1.0
LatencyJitter = 1.0
