AutoVQT™ - Automated Voice Quality Testing Software with POLQA v2.4

Overview

GL's AutoVQT™ is an advanced, automated solution that analyzes thousands of voice files in mere minutes, effectively evaluating the quality of voice communications across various networks, including VoIP, Mobile, and PSTN. The solution utilizes the Perceptual Objective Listening Quality Assessment (POLQA per ITU-T P.863 version 2.4) algorithm, which is widely acknowledged as the industry benchmark for assessing voice quality. The GL AutoVQT™ application works in conjunction with GL's VQuad™, vMobile™, Voice Analysis Tool (VAT™), Message Automation and Protocol Simulation (MAPS™), or T1 E1 Analysis platforms reducing analysis time and increasing efficiency.

The AutoVQT™ fully supports analysis using POLQA ITU version 2.4 algorithm for Narrowband (NB 8000 sampling), Wideband (WB 16000 sampling), and Super Wideband (SWB 48000 sampling). The tool offers a user-friendly interface for automatic operation and generates comprehensive reports that provide detailed information on voice quality metrics such as Mean Opinion Score (MOS), Delay, Jitter and more. These reports help users to identify issues to improve voice quality. Supports raw audio captured over any interface including Analog, Mobile, T1 E1 and VoIP.

With the Voice Quality server software installed on Windows® PC and client software running on Windows®/Linux® platforms, users can analyze large quantities of PCM/WAV files obtained from any network as well as different sampling rates in minutes, significantly reducing the time required for analysis. The Auto Test feature enables the application to analyze files immediately based on the configured settings upon invocation of the application.

The AutoVQT™ application operates automatically by applying the POLQA algorithm to degraded (recorded) audio files located within a user-specified local directory. Once the application detects a PCM/WAV voice file in the configured directory, the application automatically applies the required algorithm against the reference and degraded PCM voice files and generates the POLQA MOS. The analyzed POLQA results can be viewed through log files and on the centralized database system - Webviewer™ which can filter, query, and generate custom reports.

Main Features

The AutoVQT™ application automates the entire testing process, analyzes previously recorded files, and provides the POLQA MOS results using the POLQA v2 algorithm.

• Analyze thousands of bulk PCM/WAV voice files in mere minutes
• The Auto Test feature allows immediate analysis of files according to the configured settings upon invocation of the application
• Uses POLQA version 2.4 (ITU-T P.863) algorithm for voice quality testing supporting NB (8000 samples), WB (16000 samples) and SWB (48000 samples)
• Supports the installation of server software on Windows® PC and the client software on Windows®/Linux® platforms
• AutoVQT™ analysis results include:
• POLQA MOS
• E-Model R-Factor
• Signal Level
• Noise Level
• Delay (requires simultaneous Send and Record of the voice files)
• Jitter
• Clipping
• Offers automatic mode of operation with centralized data access
• Supports voice quality testing over all types of telecom networks - Wireless, VoIP, TDM, and PSTN
• As part of the POLQA algorithm, the POLQA MOS is generated by utilizing the impact of Packet Jitter and Codec compression in VoIP and Wireless networks
• Provides remote monitoring with result query and real-time statistics using web based WebViewer™
• Enables real-time mapping of results directly on Google Maps when used in conjunction with VQuad™ or vMobile™ with GPS option and results sent to WebViewer central database
• Remote control of AutoVQT™ through Command Line Interface (CLI)