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Voice Quality Testing
Examine spoken sound quantitatively.
See Also: POLQA, Voice Quality Test, VQT, QoE
- Advanced Telemetrics International
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Tire and Wheel Testing Systems
Advanced Telemetrics International
Tire and Wheel Testing Systems can be custom designed and manufactured for practically any application. The inductively powered system is used to wirelessly measure tire pressure and temperature during testing.
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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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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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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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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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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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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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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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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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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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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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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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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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Performance And Quality Testing
Underwriters Laboratories Inc.
Our endless pursuit of the truth helps you provide trustworthy answers to questions about products, processes, facilities and systems. Our testing, certification and verification services—and the UL Mark—provides regulators, purchasers and consumers with the information they rely on to confidently make the decisions that impact your business. Our quality assurance checks help to ensure that components and products meet your—and your stakeholders’—demands.
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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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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 Coils
CAES can tailor a motor for your specific application. This customization can include size variations and winding characteristics to accommodate power supply availability, performance parameters and physical mounting requirements.
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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
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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Software Testing & Quality Assurance Services
We have deep expertise in various spheres: finance, banking, e-commerce, education, healthcare, entertainment, telecom, travel, aviation, natural resources and others. Our strong quality assurance team can start testing your project of any complexity within 24 hours. Convenience for TestMatick`s customers consists in the proper mix of technical skills of the team, understanding of the business process, special industry knowledge, professionally built testing processes and methodology. Mobile Application and Smartphone Testing: We ensure quality of the entrusted to us mobile software products carefully testing them on the required mobile platforms. Automated Software Testing For Quality Assurance. T
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Testing & Quality
The solar simulator, electroluminescence and hi-Pot testers are the main machines used to test photovoltaic modules. These machines can be positioned at the end of the production line and along the production chain to keep the quality and efficiency of the photovoltaic modules under control after the most sensitive production phases. Each machine uses the best technologies in order to guarantee the best and most accurate measurements.
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Mobile Handset Voice Quality Test System
BK9024
If you need to test cellphones, the BaKo Type BK9024 is fast and switches between up to 8 phone chambers at once, making it a great choice for quality control on your production line.
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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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Secure Voice & Data Communications in EURO-ISDN
ELCRODAT 6-2
Rohde & Schwarz ELCRODAT products protect voice and data communications in digital and analog armed forces and government networks in all German and NATO security classifications.The ELCRODAT 6-2 is the first encryption unit approved for transmitting information classified as TOP SECRET that uses a public key method for key agreement. Together with the public key method, the noise generator in the encryption unit enables mutual authentication and key agreement. New session keys are generated in the encryption unit for each connection. The keys do not leave the units and are deleted after the session for maximum security.
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Sky Quality Meter
SQM-LR
An RS232 SQM model for night-time sky brightness monitoring! An affordable meter for continual, connected measuring of sky brightness for astronomers! The "Sky Quality Meter - LR" measures the brightness of the night sky in magnitudes per square arcsecond.
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Power Quality Analyzer
High-precision Power Quality Analyzer and MeterThe Dewesoft power quality analyzer can measure all the power quality parameters according to IEC 61000-4-30 Class A. In comparison to other power quality meters ours are able to do more detailed power quality analysis. Raw data storing, behavior at faults, calculation of additional parameters, etc.
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Power Quality Analyzers
The Dewesoft power quality analyzer can measure all the power quality parameters according to IEC 61000-4-30 Class A. In comparison to other power quality meters ours are able to do more detailed power quality analysis. Raw data storing, behavior at faults, calculation of additional parameters, etc.
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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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Water Quality Testing Instrument
GDYS-101SC
Water quality analysis meter, single element. Each model can test one element contained in water.
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Power Quality Analyzers
Is used to measure electric power signals to determine the load's ability to function properly with that electric power.
