User's Manual Part 2

Nomad User’s Manual Chapter 8 – Analyzing the Results

8.7 Collecting Random Audio Sample Files (Voice Quality Testing)

Nomad has the ability to set aside a random sample of audio files from a Voice Quality test within

each MOS performance range. This allows users to audibly verify the performance of Great, Good

and Bad audio samples.

Random audio file sampling must be enabled prior to data collection on the Settings → Voice

Quality tab in order to capture this data (see Section 4.4.1).

Start and run the test normally. After the uplink and downlink data for the test has been merged

and the session file appears on the Data → Complete tab, a ZIP containing the sample uplink and

downlink audio files will be available in the file’s details directory. This folder resides in the log file

storage location specified in the Start Logging Session Wizard (see Section 6.4) and takes the

same name as the session log file. The ZIP file contains a directory structure that organizes the

audio samples by channel and by performance threshold. The .WAV audio samples reside within

the directory structure.

Some notes about the directory structure containing the audio samples:

 If the specified number of files does not exist for a range, Nomad will include all available

.WAV files for that range.

 If no samples fall within a range, no folder will be present for that range.

 The files can be played with any media player that supports .WAV files.

Figure 8-30 - Random Audio Sample Directory Structure