The PEXQ split screen feature of the viewer
window allows for a 1:1 comparison of the
degraded (test) video with the original ref-
erence by horizontal and/or vertical split of
the overlay. This display feature is ideally
suited for codec developers and cause
analysis, as sliding through the image may
visualize even slight deviations from the
original (left half of the image). In this HD
IPTV example, bit errors were inserted dur-
ing the IP transport (visible in the right half
of the image).
PEXQ™, PEAQ™, PEVQ™, PEDQ™, 3SQM™ and the OPTICOM logo are registered trademarks of OPTICOM GmbH; PESQ™ is a registered trademark of OPTICOM GmbH and
Psytechnics Ltd.; the ‘Single-sided Speech Quality Measure’ and ‘The Perceptual Quality Experts’ are trademarks of OPTICOM GmbH. This information may be subject to
change. All other brand and product names are trademarks and/or registered trademarks of their respective owners.
All rights reserved. Copyright © 2008 OPTICOM GmbH – www.opticom.de
2
PEVQ™ Analyzer
Comfortable Graphical User Interface
Split View Overlay
2
1
3
The PEVQ Analyzer desktop combines PEXQ (1), OPTICOM's unified graphical user interface
providing a Quad-KPI set for voice, audio, video and data analysis, and QuickClip (2) (pow-
ered by Drastic Technologies) for comfortable play-out and record. The PEXQ view window
(3) allows for visual frame-by-frame overlay comparison of original, degraded (test) signal
and PEVQ internal error patterns.
