User's Manual Part 2

Tech-X Flex
®
(NG2) Tech-X Flex User Guide - Firmware v06.50
6-35
Intro
Overview
Wi-Fi
Ethernet
System
IP/Video
MoCA
RF
Specs
Table 6-19 Video QoS - Stream results, Video Scores tab
Table 6-20 Video QoS - Transport results, Stream Metrics tab
Result Description
VSTQ Video service transmission quality. This is a codec-independent measure related
to the ability of the bearer channel to support reliable video.
Valid values are:
0 - 100
VSPQ Video Service Picture Quality. This is a codec-dependent measure of the
subjective quality of the decoded video stream. It is equivalent to a V-MOS score,
using a different scoring range.
0 - 100
Gap VSPQ Video Service Picture Quality during gap state periods. This is a codec-dependent
measure of the subjective quality of the decoded video stream. It is equivalent to a
V-MOS score, using a different scoring range.
Burst VSPQ Video Service Picture Quality during burst state periods. This is a codec-
dependent measure of the subjective quality of the decoded video stream. It is
equivalent to a V-MOS score, using a different scoring range.
VSMQ Video Service Multimedia Quality. This is a codec-dependent measure of the
subjective quality of the decoded audio and video stream. It is equivalent to an
AV-MOS score, using a different scoring range.
Valid values are:
0 - 100
EPSNR Estimated average peak signal-to-noise ratio value for pictures in the stream, in
dB. This value is derived based on other metrics and is not measured directly.
Result Description
Packets Discarded Number of packets discarded. Packets may be discarded by the jitter buffer
emulator for the following reasons, similar to an actual jitter buffer:
• The buffer is too full to handle all incoming packets
• A packet arrives too late to contribute to the media presentation
OOS Packets Number of video/audio stream packets that arrived out of sequence, as detected
by the jitter buffer emulator.
Preliminary issue - Limited distribution only!