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Speech Quality Assessment of VoIP DevicesGAITHERSBURG, Md., May 31, 2018 (GLOBE NEWSWIRE) -- GL Communications Inc. a global leader in telecom test and measurement solutions, announced today its latest software solution for simulation of end user equipment (VoIP devices) using VQuad™ Probe HD, and Speech Quality measurement using Voice Quality Analyzer. Speaking to the press, Mr. Robert Bichefsky the Senior Manager in the GL Communications Inc said, “Accurate and reliable assessment of speech quality within VoIP and PSTN networks is vital for the satisfaction of the end-user or customer experience. Businesses spread across geographic locations and increased telecommuting has triggered drastic demand for VoIP phones. Consequently, VoIP phone manufacturers face tremendous pressure to ensure mass production, while also ensuring devices have latest features and at the same time they are free of noise, echo, and other hindrances which may cause a degraded voice quality.” https://www.gl.com/images/send-record-voice-over-ip-network.jpg He further explained, “GL provides VoIP manufacturers and developers with a test solution to evaluate IP phones according to international ITU-T standards for measuring end-to-end audio performance as well as the acoustic performance. End-to-end Speech quality assessment can be done using objective evaluation method which involves industry standard algorithms such as POLQA and PESQ in order to compare original and processed speech signals.” Mr. Vijay Kulkarni CEO of the GL Communications added, “GL’s solution for VoIP phone speech quality testing includes VQuad™ with Dual UTA HD/VQuad™ Probe HD, VQT POLQA, and WebViewer™ (Central Database)” The solution provided are,
When testing, the customer may place a call between two IP Phones (DUT) with the VQuad™ Probe HD connected to the IP Phone for sending/recording audio. This scenario can also be used to test the VoIP network. Any of the possible scenarios described below can be considered for testing. The results from VQuad™ and VQT will help compare the speech quality measurement scores based on different voice codecs with support for Narrowband, Wideband, Super-Wideband. POLQA supports the latest HD-quality speech coding and network transport technology, with higher accuracy for 3G, 4G/LTE and VoIP networks. Important Features
About GL Communications Inc., GL Communications Inc is a global provider of test and measurement solutions and has over the years worked with major telecom equipment vendors, service providers, and system integrators to meet the testing requirements arising at various stages of telecom products development life cycle. GL offers a broad set of test solutions that help perform all types of testing on networks, from initial system design, to fine-tuning, troubleshooting, live deployment, and monitoring. The products are widely used to verify and ensure 'quality and reliability' of Wireless (4G LTE, 3G, 2G), SONET/SDH, IP, TDM, and PSTN networks. GL core product development is backed by a strong team of R&D experts to match evolving market and technical challenges in a most cost-effective and innovative way. Contact: |