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Voice Quality Testing
Examine spoken sound quantitatively.
See Also: POLQA, Voice Quality Test, VQT, QoE
- Omnicor
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Network Testing Tools
Network IP traffic packet generators are used for network performance testing under maximum or partial throughput conditions. Network health can be analyzed by network traffic measurement in a testbed network, using an IP network traffic generator such as IP Traffic Test and Measure. The traffic generator sends packets, often with a unique packet identifier, making it possible to keep track of the packet delivery in the network.Network impairment simulation (emulation) is a technique for testing the performance of real applications over a virtual network. The aim is to assess performance, predict the impact of change, analyze impairment conditions or otherwise optimize technology decision-making. Measurements usually focus on simulation of conditions like delay, jitter, latency, dropped packets and limited bandwidth.
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Voice Quality Test System
MultiDSLA
MultiDSLA solution is a state of the art measurement system for Voice Quality Testing and Performance Assessment used by many organisations as the reference measurement in applications ranging from core technology development to network operations.
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Voice Quality Test
POLQA
POLQA is the next-generation voice quality testing technology for fixed, mobile and IP based networks. POLQA was standardized by ITU-T as P.863 and can be applied for voice quality analysis of HD Voice, 3G and 3G/LTE networks.
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Anite SAS Interoperability Testing
Access advanced platform for network simulation, currently used by major Tier 1 carriers in their device acceptance programsAccelerate the introduction of new mobile devices with cost-effective, controllable, repeatable and automated lab-based testingQuickly evaluate devices in the integration, interoperability testing and carrier acceptance testing phasesConduct rigorous device testing to achieve superior experience in terms of functionality and quality of voice and data transferTest data performance under fading conditions using the internal fading capability to enable comprehensive performance testing
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VoIP Testing
VQuad™
Testing on the extreme end-point of a VoIP softphone network has become a priority for many service providers. This method of testing represents what an end user is actually experiencing. Voice quality testing within VoIP networks is growing; a major concern is testing VoIP softphones that will be used with VoIP networks. GL’s VQuad™ with VoIP option along with Voice Quality Testing (VQT PESQ) software provides the ability to perform manual or automated Wideband audio tests using HD codecs on the VoIP network.
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Nemo Walker Air
Nemo Walker Air provides you with the best real-time measurement and benchmarking. Nemo Walker Air's extensive application testing features offer full application-level metrics on-voice calls, voice quality, FTP/HTTP data transfers, Iperf, HTML browsing, YouTube streaming, Facebook testing, LinkedIn testing, Twitter testing, Instagram testing, email testing, SMS & MMS messaging, and ping. Versatile Indoor Benchmarking for all wireless technologies
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Non-Intrusive voice Quality Analyzer
NIQA
The most known methods for quality evaluation of voice transmission systems were developed by Telecommunication Standardization Sector of International Telecommunications Union (ITU-T) in the middle of 90-s. Results of this work are presented in Recommendation P.800 (P.830) «Methods for subjective determination of transmission quality» [1, 2]. This document describes conditions for voice quality testing, audio contents, scoring and methods to evaluate results. Typically “Methods for subjective determination of transmission quality” are used to obtain mean subjective quality score according to five-digit scale (Mean Opinion Score – MOS).
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Voice Quality Solutions
Wireless networks can impair voice, video, and data quality by various means including poor mobile phone quality, voice compression and decompression algorithms, video compression and decompression algorithms, delay, loss or gain in speech levels, noise, acoustic and landline echo, and other distortions. GL provides a compact and portable solution for Wireless Devices, and Mobile Radio testing.
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Voice Quality Solutions
Communications is dramatically changing right now, as “mobility” and “IP” technologies such as LTE, Advanced LTE, WiMax, 3G, and Broadband Internet, lead this transformation. As these technologies are rolled out, basic voice/video/data quality will ultimately determine the fate of carriers and end equipment manufacturers. Simple and effective methods of testing voice, video, and data are sorely needed - GL’s Voice, Video, and Data Quality Test Solution provides this flexibility of connecting to and between any network, any service, and any interface.
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Quality Measurement Tools for Voice, Audio/Visual and Data Payload analysis
PEXQ
PEXQ is OPTICOM’s latest product for Windows offering a complete portfolio of quality measurement tools for voice, audio/visual and data payload analysis based on human perception. PEXQ provides mandatory features in the area of R&D for the development of new multimedia codecs as well as for multimedia equipment manufacturers. Besides lab testing PEXQ is also ideal for network operators and carriers to measure quality of service. PEXQ is founded on well established internationally standardized measurement algorithms such as PESQ (ITU-T Rec. P.862, P.862.1 (narrow band), P.862.2 (wide band); Perceptual Evaluation of Speech Quality) and completely new metrics for video quality testing like PEVQ (Perceptual Evaluation of Video Quality).
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Telephony Conformance Analyzer
TCA 4100
Acoustics and voice quality conformance testing for cellular including VoLTE, digital, and analog phones. TCA 4100 is an automated & affordable voice quality & acoustics conformance test solution. A wide range of handset and hands- free phones such as VoIP, DECT, Wi-Fi, Bluetooth, cellular, analog, telephones, audio devices and hearing aids are supported.
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End-To-End Performance Testing
IxLoad Wireless
Keysight Network Applications and Security
IxLoad Wireless enables mobile operators and equipment manufacturers to test and validate complex wireless networks and components for greater end-to-end service quality. This “lab to live” LTE testing solution recreates networking environments and real-world subscriber traffic, such as voice, video, and data. At the same time, it emulates multiple mobile subscriber activities—including handovers, TAU, and idle-connected transitions—for comprehensive test coverage. Whether modeling the behavior of thousands of subscribers or measuring end-user experience, IxLoad enables mobile operators to fast-track new networks and services with confidence.
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Advanced Voice Quality Assurance System
AVQA
R&S®AVQA is a non-intrusive voice assurance system that provides many integrated monitoring functions for ATC communications systems. These functions include:Quality assurance reports to CAAType acceptance of new IP systemsLive information about disturbance to ACC adminVoice quality report on ANSP interconnection (e.g. NewPENS)Network quality reporting
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Power Quality Testing
Weshine Electric Manufacturing Co., Ltd
Transformer K Factor, Power factors(PF)and displacement factors, Short-term voltage flicker, .Three phase unbalance (Current and Voltage), Waveform real-time display(4 channels voltage /4 channels current) True RMS values of voltages and currents
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Indoor Air Quality Testing
Underwriters Laboratories Inc.
We offer prompt reactive services to building engineers, owners and managers to quickly identify and resolve indoor environmental issues. Our healthy building services include heating, ventilation and air conditioning system (HVAC) inspections, Legionella testing, mold and moisture inspections, post food inspections, mold clearance inspections, post remediation inspections, focused air quality inspections, and odor inspections.
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Quality Assurance Testing
Manufacturers rely on Quality Assurance (QA) testing to maximize customer satisfaction and minimize costly after-sales troubleshooting and support. One of the best known drivers behind QA testing is the ISO 9000 standard, but there are many others.
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Voice Communications Systems
NAVICS
The NAVICS® fully IP based ICS from Rohde & Schwarz uses a uniform IP network to connect distributed on-board voice terminals and other subsystems for internal and external communications. The ruggedized, highly available IT technology with creditable security is also from Rohde & Schwarz
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Voice Communications Systems
The "Multi-Voice Presence" (MVP) series focuses on team communications. Firefighters, military special-ops, plumbers, and football coaches all use team communication systems. These systems are "closed" in that the signals do not leave the system, and the entire system is usually provided by one proprietary vendor.
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Voice Quality Monitoring as a Service (VQMaaS) for MultiDSLA
VQMaaS is the cloud-based solution that provides the ability to manage everything about the quality of your voice services: understand what service quality you provide, being internal or external voice service, troubleshoot faster, get alerts, manage your capacity planning.
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Sky Quality Meter
SQM-LE
An ethernet-enabled SQM model for night-time sky brightness monitoring! An affordable meter for continual, connected measuring of sky brightness for astronomers! The "Sky Quality Meter - LE" measures the brightness of the night sky in magnitudes per square arcsecond.
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Surface Quality Monitors
PET manufactures and markets non-destructive, non-contact surface contamination and thin film detection models and automated systems (surface quality monitoring system) capable of detecting thin layer contamination, thin films and coating down to the Angstrom level. These systems represent a major breakthrough by providing, for the first time, a quantitative measure of surface cleanliness. As surface cleanliness verification instruments, in a part cleaning environment, these products are capable of validating the cleaning quality of all the part cleaning equipment available in the market. Any of SQM model series is capable of verifying metal contamination; monitoring absence/presence of organic and/or inorganic on virtually on surfaces of all metals. They are, price/performance, the most sufficient product available for testing surface of metals for surface cleanliness. These systems operate in an ambient environment, require no sample preparation or deposit of any agents on the surface. In any parts cleaning environment where the quality and efficiency of part cleaning equipment for removal of surface contamination is highly desired, these systems provide a scientific solution by quantitatively measuring the surface cleanliness. The SQM series has the sensitivity and operational simplicity required to provide fast and cost effective surface evaluation for all metals.
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Power Quality Analyzers
GF334
Beijing GFUVE Electronics Co.,Ltd.
GF334 harmonics power analyzer is small size, handheld design, with current measurement directly from 0 to 20A, accuracy 0.05%, harmonics measurement from 2nd to 64th, display harmonic content and bar graph. As a high precision power analyzer.
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Power Quality Analyzer
PQM-703
Power quality analyzer PQM- 703 is a technically advanced product that allows for comprehensive measurements of the quality of electricity , analysis and recording of power network parameters, for frequencies 50/60 Hz in accordance with European standard EN 50160. PQM -703 is another representative of a well, known family of analyzers line PQM- 70x . In relation to the PQM -702 has new functions like recording of transients with max. sampling frequency 10 MHz (rapid changes in voltage) and control signals. Minimal transient capturing time is 650 ns. It is intended for a very wide range of users who need to control the quality of power with a mobile device , which fulfills the requirements of a multi-sheet standard IEC 61000 for class A analyzers. This applies to measurement accuracy, measurement methods, and synchronization of time with a standard signal. The last condition is met with a built-in GPS module with an internal antenna. If the analyzer is installed inside, it is possible to use an additional antenna with a 10m-long wire. If the antenna is situated outside, GPS signal will be attainable without any problems and used for the synchronization of an internal clock.
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Quality Assurance
Quality Trend Intelligence
Managers should understand the quality of deliverables over time, and whether the testing activities were efficient and effective. SeaLights enables this understanding of what quality activities have been executed and where your team should be focusing their efforts next.
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Air Quality Analysis
Ambient Gas Monitoring: We offer a variety of analyzers for the ambient monitoring of the criteria pollutant gases, including CO, NOX, SO2, and others such as CH4 and CO2. Source Gas Monitoring (Emissions Monitoring): Experience reliable measurement in your process for emissions compliance every time.Ambient Particulate Monitoring: Experience our monitoring technology and gain the power to do more than just inform.Emissions Calibrators: For continuous monitoring of mercury in exhaust stacks, waste incinerators, and cement kilns, or multi-gas models to control the calibration of gas concentrations.
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Resistance, Ground Testing, Battery And Power Quality
Our testing equipment works wherever you are, whenever you need it, with precision and reliability.
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Air Quality Click
64202
Parallax speeds the process of Propeller 2 development through our partnership with MikroE, who has created a family of 850+ Clicks for most I/O functions you may envision. For each of the Click boards stocked by Parallax, you will find a documented Spin 2 code example on our Propeller GitHub Object Exchange. Connect your Click boards to the Propeller 2 Evaluation Board or P2-EC Edge Breakout Breadboard using the #64008 P2 to MikroBus Click Adapter.
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Power Quality Meter
PQMII
The PQM II is an ideal choice when continuous monitoring of a three phase system is required. It provides metering for current, voltage, real and reactive power, energy use, cost of power, power factor and frequency. Programmable setpoints and 4 assignable output relays allow control functions to be added for specific applications.
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Quality Assurance
Exploratory Test Code Coverage
Exploratory testing is simultaneous learning, test design, and test execution of critical areas in the application. It is an efficient method to provide rapid feedback and uncover critical bugs in newly released features. As these tests are manual and their execution duration is longer and more expensive, it’s important to minimize overlap with other test types. Gain visibility into which code areas are being tested with manual and exploratory tests to improve team efficiency and speed.
