Category Archives: How-to

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.

Posted on: October 27th, 2014 | Categories: How-to, Lab

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.

Posted on: August 21st, 2014 | Categories: How-to, Lab, New Releases

Test Push-to-Talk and PTT over Cellular

Testing Push-to-Talk (PTT) and PPT over Cellular (PoC) parameters is straightforward with MultiDSLA.

Posted on: May 15th, 2014 | Categories: How-to

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 […]

Posted on: July 2nd, 2013 | Categories: How-to, Lab

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 […]

Posted on: June 13th, 2013 | Categories: How-to

Results are Portable with Speech Performance Viewer

Speech Performance Viewer enables colleagues to see the results of speech quality tests, even if they do not have a Malden speech quality analysis system.

Posted on: May 9th, 2013 | Categories: How-to

Working with IVR Systems

Testing IVR performance for speech quality and prompt accuracy can be performed by a MultiDSLA system.

Posted on: November 29th, 2012 | Categories: How-to

Measure Music Quality using ITU PEAQ

Many devices, including cellphones, now have mp3 players or similar music replay capabilities. Assessing the quality of the replay is important in product development, production and a factor in cellphone selection. Here’s how to do it with MultiDSLA.

Posted on: April 4th, 2012 | Categories: How-to

Measure cellphone mp3 audio performance

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.

Posted on: December 3rd, 2011 | Categories: How-to

Calibrate levels for optimum MOS

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.

Posted on: September 27th, 2011 | Categories: Lab

Page 1 of 212