Voice Quality - Keysight U8903B User Manual

Voice quality

POLQA and PESQ measurements are only available with N3433A. Refer to "U8903B
NOTE
Options" on page
This measurement is unavailable if a different interface is selected for the output and input
configuration channel.
Perceptual Objective Listening Quality Assessment (POLQA) is the next-generation voice
quality testing technology for fixed, mobile, and IP-based networks. POLQA was
standardized by the ITU-T (International Telecommunication Union) as the new
Recommendation P.863 and can be applied for voice quality analysis of high definition
voice, 3G, and 4G/LTE networks. POLQA is licensed by OPTICOM GmbH.
Perceptual Objective Listening Quality Analysis (POLQA) according to ITU-T
NOTE
Recommendation P. 863 included in this product is protected by copyright and by
European, US and other International patents and patent applications and is provided
under license from OPTICOM Dipl.-Ing. M. Keyhl GmbH, Erlangen, Germany, 2011 -
www.opticom.de.
POLQA® is a registered trademark of OPTICOM GmbH. Used by permission.
© 2011 by the POLQA Coalition of OPTICOM GmbH, Germany - SwissQual AG, Switzerland
- KPN, The Netherlands - TNO, The Netherlands.
Copying, modifying, translating, reverse engineering or decompiling the POLQA Software is
prohibited. Acknowledgement of the rights in the POLQA software shall not be removed
from the POLQA software or any installation of it.
For further information please refer to
POLQA provides significantly improved benchmark accuracy for 3G and strong support for
testing of most recent technologies such as Unified Communications, Next Gen Networks,
and 4G/LTE compared to PESQ/P8.862 that was originally released in the year 2001.
POLQA measurement working model is to predict speech quality by analysing digital
speech signal. The objective measures should be as close as possible to the subjective
quality scores as if it would be obtained from subjective listening tests. Typically, POLQA
measurement uses real speech as a test stimulus to assess the quality and performance of
telephony networks. POLQA measurement is the successor to PESQ/P8.862 measurement.
The result for the voice quality measurement for all the selected channels are displayed in a
bar chart (MOS-LQO and Levels). Refer to "Measurement Results" on page
information on the respective result menu page. Use the arrow keys to navigate through
the respective tabs and to display the menu page.
Keysight U8903B User's Guide
37 for more information.
www.polqa.info.
Test Sequence Application
399 for more
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