Contact Center Solutions Featured Article

GL Announces Release of Enhanced Voice Quality Testing Solutions

February 22, 2013

GL Communications Inc.,  a provider of PC-based test, analysis and simulation products and consulting services, has introduced its latest enhanced Voice Quality Testing Software with Perceptual Objective Listening Quality Analysis (POLQA) standard.

"GL's enhanced VQuad and stand-alone Voice Quality Testing (VQT) software, both support the next-generation voice quality testing standard for fixed, mobile and IP-based networks using POLQA (ITU-T P.863),” said Robert Bichefsky senior manager for product development of the company.” .

Bichefsky added that the VQT supports other international standard voice quality test methods including PESQ (ITU-T P.862), PESQ LQ / LQO (P.862.1), PESQ WB (P.862.2), PAMS (ITU-T P.800), and PSQM/PSQM+ (ITU-T P.861).  In addition, it:

  • Supports the latest HD-quality speech coding and network transport technology with higher accuracy for 3G, 4G/LTE (News - Alert) and VoIP networks, and is based on ITU standard, ITU-T P.863 which is the successor of PESQ (ITU-T P.862) analysis. 
  • Adds for the first time Voice Quality (POLQA) directly to the VQuadTM as an option.

Bichefsky pointed out that the POLQA algorithm avoids weaknesses of the current PESQ model and handles the higher bandwidth audio signals including wideband (WB, 300-3400 Hz) and super-wideband (SWB, 50-14000 Hz). Further improvements of this algorithm include the handling of signals with many delay variations and support for assessment of speech signals recorded acoustically by HATS (head and torso simulator).

POLQA, similar to PESQ, is a Full Reference (FR) algorithm that rates a degraded or processed speech signal in relation to the original (reference) signal. POLQA analyzes the degraded speech signal sample-by-sample after a temporal alignment of the reference test signal. Perceptual differences between both signals are scored as differences. The perceptual psycho-acoustic model is based on similar models of human perception.

TMCnet recently reported that GL Communications (News - Alert) has unveiled its software for Echo Performance Testing and Verification which allows IT professionals to apply delay, attenuation, and/or filtering to a received signal on any number of timeslots.




Edited by Peter Bernstein

Article comments powered by Disqus

Related Contact Center Solutions Articles

Contact Center Solutions Week in Review: Interactive Intelligence Lync Integration

The Contact Center Solutions Community continues to grow in terms of both jobs and the reach of community interests as this week's news highlights. [ Read More ]
10/25/2014

Case Study: A Web-based Forecasting Solution for Sizeable Contact Centers

Technological advances over the past decade have led to an explosion of data. Companies across all industries are working hard to learn how to harness this data to improve their business operations and run more efficiently. This is the same story for the contact center solutions community - using data effectively can help with workload management and staffing optimization. The case study below demonstrates how two companies, Fourworkx and Shinetech Software, worked together to move workforce man… [ Read More ]
10/24/2014

Westpac Relies on Teradata Insights to Enhance Customer Experience

Australian bank Westpac selects Teradata solutions to get better insights for improving customer experience. [ Read More ]
10/24/2014

No Missing Links with Interactive Intelligence Lync Integration

There can be little denying that the Holy Grail for enhancing customer experiences is to absolutely ensure that the right people have the right tools at the right time to efficiently and effectively respond to customers in real-time. This is the reason so much attention and investment by vendors and their customers alike is being placed on omni-channel capabilities. [ Read More ]
10/24/2014
Subscribe here for your FREE Contact
Center Solutions
enewslettter.

Events

Weekly Live Demo
Contact Center Solutions

Register Today!


Weekly Live Demo
CaaS Small Center

Register Today!