The Near Real-time Voice-band Analyzer (VBA) is an analysis tool for monitoring voice band traffic over VoIP, TDM and wireless networks.

It can host an arbitrary number of analysis algorithms. Built-in algorithms include ITU-T P.56 Active Voice Level analysis, Line Echo (Hybrid) analysis, and Acoustic Echo analysis. Other analysis modules such as ITU-T P.561, P.562, and P.563 can be hosted as plug-ins.

The VBA application operates on previously captured files, making it a near-real time tool. It supports A-Law, µ-Law, 16-bit PCM (Intel), 16-bit PCM (Motorola) and MS Wave file formats.

This package has been designed to work with other GL Communications Inc. tools such as PacketScan™, Call Capture and Analysis, and many other recording tools.

Capabilities

• Near real-time (NRT) non-intrusive analysis platform. 
• Supports 1, 2, 3, and 4-port signal data analysis Manual, batch, and automatic processing modes.
• Hosts built-in P.56 Active Voice Level analysis, Hybrid Echo analysis, and Acoustic Echo Analysis and optional analysis algorithms as plug-ins Native analysis output mode directly compatible with Microsoft® Excel and other readily available analysis tools.
• Database interfaces available on request.

Tests Performed

The Near Real-time Voice-band Analyzer provides the user with the capability to evaluate acoustic and line echo as well as active speech level. Capable of testing on a variety of networks, including Wireless, Cellular, LAN and PSTN, the GL VBA solution provides the perfect tool for helping to understand end-to-end voice quality issues on your network or device.

Summary