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.
A look at Skype VoLTE (Voice over LTE)
Aspects of Skype performance between two LTE phones on the network, over WiFi and between WiFi and the network
POLQA v2.4 – Notes on the Upgrade’s Behaviours (Part 1)
A new version of ITU-T Rec. P.863 POLQA is now included in MultiDSLA. Discover what has changed in v2.4.
Bluetooth Link Testing with a MultiDSLA System
A MultiDSLA system can evaluate the speech quality transmission performance of a mobile phone with a Bluetooth link.
Step Change a Test Parameter with MultiDSLA v5
Making measurements of the effects of step changes in parameters is much easier in MultiDSLA version 5.
Test Push-to-Talk (PTT Test) and PTT over Cellular
Testing Push-to-Talk (PTT) and PPT over Cellular (PoC) parameters is straightforward with MultiDSLA.
Testing Skype™ and Other VoIP Clients
Measuring the performance of Skype and other VoIP clients is easy with MultiDSLA. Identify poor speech quality, long delay and other issues quickly, accurately and repeatably.
4 and 6 Channel DSLA Now Available
We are proud to announce the New Four and Six Channel Digital Level Speech Analyser Both versions have the Handset Ports (RJ22), Phone Ports (RJ11), Control Jacks and Monitor Outputs on the front panel. On the rear panel is a Sync Port, a Serial Port and an Ethernet Port for each channel pair. Like the Two Channel DSLA, the Four and Six …
HD Voice
What is HD Voice? HD Voice is short for High-Definition Voice, and is also called Wideband. In Internet and mobile telephony, it refers to the use of Wideband technology to provide a deeper clarity and better audio experience during a telephone call. The higher frequencies transmitted in Wideband make for easier recognition of un-voiced sounds such as “ss” “f” “sh”. …
Testing iPhone Voice Quality with MultiDSLA
For about a year, you have been able to automate Android smartphone voice-band performance testing with our custom app. This app is installed on the Android phone. Once installed, MultiDSLA software can make the phone place and answer phone calls automatically. Now we have an app developed for the iPhone. Note: we assume that you have an understanding of how …