GL’s Enhanced Voice Quality Analyzer now supports POLQA v3

GL Communications Inc., a global leader in telecom test and measurement solutions, addressed the press regarding their Voice Quality Analyzer, which is now enhanced to support Perceptual Objective Listening Quality Analysis (POLQA) version 3.0.

Perceptual Objective Listening Quality Analysis


Perceptual Objective Listening Quality Analysis (POLQA)

POLQA, the successor of Perceptual Evaluation of Speech Quality (PESQ) (ITU-T P.862) analysis, is the next generation voice quality testing standard for fixed, mobile and IP-based networks. Based on ITU-T P.863 standard, POLQA supports the HD-quality speech coding and network transport technology, with higher accuracy for 3G, 4G/LTE and VoIP networks. Upgrading to the 3rd edition of ITU-T P.863, POLQA extends its scope and applicability towards 5G telephony and OTT codecs”, said Robert Bichefsky, Director Engineering of GL Communications Inc.

He further added, “The latest version of GL’s Voice Quality Analyzer supports the optional POLQA v3 upgrade from POLQA v2.4. POLQA v3 supports full band audio analysis which provides improved scoring for mobile-based VoLTE, 5G and OTT applications using EVS and OPUS codecs. POLQA v3 is more sensitive to distortions across the entire audio spectrum. In addition, POLQA v3 supports less harsh analysis of micropauses within the speech, reacts with less sensitivity to linear frequency distortions, and includes a significantly improved and streamlined perceptual model”.


Important Features of VQT Analyzer

  • Voice Quality Testing (VQT) upgraded to POLQA v3 (ITU-T P.863), and PESQ (ITU-T P.862)
  • Updates associated with POLQA v3 include a redesigned perceptual model for Full Band Audio analysis which is validated for VoLTE, 5G and OTT apps (supporting EVS and OPUS codecs)
  • Provides Active Speech and Noise Levels, Latency, Jitter, Clipping, and Power measurements
  • Manual or Auto modes of operations with centralized data access
  • Test voice quality over all types of telecom networks - Wireless, VoIP, TDM, and PSTN
  • Measure packet jitter in VoIP networks
  • Analyze the effects of codec compression in wireless networks
  • Automatic mode allows the GL’s VQT to execute on a network system
  • VQT CLI or API is enhanced to fully support both Windows® and Linux for remote operations


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