The purpose of this software is to make quality of expirence (QoE) measurements for push-to-talk (PTT) communications systems. This Python package develoved by NIST’s PSCR division contains a GUI for making these measurements. This GUI is the recommended way to run the following QoE measurements:

• mouth 2 ear latency
• Access Time
• Probability of Successful Delivery
• Intelligibility
• Transmit Volume Optomization

The mcvqoe GUI package depends on the following other PSCR published packages:

• https://github.com/usnistgov/mcvqoe-base
• https://github.com/usnistgov/abcmrt16
• https://github.com/usnistgov/mouth2ear
• https://github.com/usnistgov/accessTime
• https://github.com/usnistgov/psud
• https://github.com/usnistgov/intelligibility
• https://github.com/usnistgov/MCV-QOE-TVO

In addition the following dependencies can be found in the Python Package index (PyPI) and will be downloaded automatically, if needed, when mcvqoe is installed:

• numpy
• pandas
• dash
• flask
• plotly
• requests
• pillow

To install the package run the following:

pip install mcvqoe

This is the easiest way to install all MCV QoE measurement software, as all the above packages are dependencies, and will be installed via PyPI.

Alternatively, one could clone this repository and run the following from the root of the git repository:

pip install .

On windows, the GUI entry point, mcvqoe causes all console output from the GUI to be lost (on windows). If the input is desired on windows the GUI can also be run with the following:

python -m mcvqoe.hub

Data can be evaluated by using the Process Data menu from the GUI. Here users can select data they wish to process and a separate, browser-based interface will initialize.

This software was developed by employees of the National Institute of Standards and Technology (NIST), an agency of the Federal Government. Pursuant to title 17 United States Code Section 105, works of NIST employees are not subject to copyright protection in the United States and are considered to be in the public domain. Permission to freely use, copy, modify, and distribute this software and its documentation without fee is hereby granted, provided that this notice and disclaimer of warranty appears in all copies.

THE SOFTWARE IS PROVIDED 'AS IS' WITHOUT ANY WARRANTY OF ANY KIND, EITHER EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY THAT THE SOFTWARE WILL CONFORM TO SPECIFICATIONS, ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND FREEDOM FROM INFRINGEMENT, AND ANY WARRANTY THAT THE DOCUMENTATION WILL CONFORM TO THE SOFTWARE, OR ANY WARRANTY THAT THE SOFTWARE WILL BE ERROR FREE. IN NO EVENT SHALL NIST BE LIABLE FOR ANY DAMAGES, INCLUDING, BUT NOT LIMITED TO, DIRECT, INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES, ARISING OUT OF, RESULTING FROM, OR IN ANY WAY CONNECTED WITH THIS SOFTWARE, WHETHER OR NOT BASED UPON WARRANTY, CONTRACT, TORT, OR OTHERWISE, WHETHER OR NOT INJURY WAS SUSTAINED BY PERSONS OR PROPERTY OR OTHERWISE, AND WHETHER OR NOT LOSS WAS SUSTAINED FROM, OR AROSE OUT OF THE RESULTS OF, OR USE OF, THE SOFTWARE OR SERVICES PROVIDED HEREUNDER.