Phone services have seen an extension of the upper limit of audio frequency from the traditional 3.4kHz of PSTN to 7.5kHz for wideband. VoLTE and 4G services using AMR can be wideband. OTT or desktop applications can be 12kHz or up to super-wideband. Conferencing services may even be full-band. How do you know whether the signal you are receiving …
MetricServer v1.2.0 released with POLQA v2.4 and SQL 2012
We are pleased to announce that Nichecom has agreed to distribute our speech quality measurement systems in New Zealand. With offices in Tawa, Wellington, Nichecom offers and supports a wide range of telecommunication test and measurement products which complement our systems. www.nichecom.co.nz
Field Tests can be performed, even if the GPS signal is intermittent, with Malden’s time sync management. Continue the drive test or walk test in tunnels, shopping malls and woodland.
MultiDSLA and other Malden applications can be installed and will run under Windows 10 Pro using softkey or dongle key management. If you are running MultiDSLA or SVN only on the Windows 7 Pro or Windows 8/8.1 Professional PC then upgrade MultiDSLA to v5.1.3 or SVN v 2.7.4 from the Software Maintenance Portal before commencing the in-place operating system upgrade. The …
Identify bandwidth differences in mixed networks with MultiDSLA and POLQA speech quality measurements
The second article in a series looking at the new version of ITU-T Rec. P.863 POLQA. Speaker dependency in the Narrowband Model is the focus here.
Aspects of Skype performance between two LTE phones on the network, over WiFi and between WiFi and the network
A new version of ITU-T Rec. P.863 POLQA is now included in MultiDSLA. Discover what has changed in v2.4.
A MultiDSLA system can evaluate the speech quality transmission performance of a mobile phone with a Bluetooth link.