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Background to the P.863 POLQA Bug Fixes

Aymeric TIBURCE In More Depth, Lab

Over the last few months a number of bugs have been found and fixed in POLQA. These have been published in ITU Recommendation P.Imp863. Why a new Recommendation? This is standard practice in the ITU. Rather than reissuing the original recommendation the bug fixes are published in an implementer’s guide. The new recommendation includes 9 fixes. The MultiDSLA v4.3.2 and subsequent versions …

PEAQ Audio quality headphones Bang

PEAQ added to MultiDSLA v4.3

Aymeric TIBURCE New Releases

MultiDSLA v4.3.0 now includes Perceptual Evaluation of Audio Quality ITU-R Rec. BS.1387. PEAQ compares a 48k reference music signal with the music replayed by a phone or MP3 player. A number of other enhancements are included in this release, including some improvements in the POLQA® implementation.

MultiDSLA music power

Measure cellphone mp3 audio performance

Aymeric TIBURCE How-to

MultiDSLA is well known for its speech-based measurements but it also supports the tone-based and other measurements used traditionally to assess telephony performance.  These features are contained in the Telephone Tester option and can now be used with a 48k sample rate DSLAII to measure the performance of music playback.

Malden at 4G World in Chicago 25-27 October

Aymeric TIBURCE Company News

Malden will be on stand 824 at 4G World this month in Chicago. We will be pleased to give you an overview of how the industry leading MultiDSLA system uses the new metric – ITU-T P.863 POLQA – to provide meaningful measurements across a variety of technologies including 2G, 3G, 4G, LTE and VoIP. Some of the main capabilities of the MultiDSLA that …


Calibrate levels for optimum MOS

Aymeric TIBURCE How-to, Lab

In this how-to we explain how adjusting the level at which we run the test significantly influences the measured speech quality of the connection.