AQuA - End-to-End Drive Testing Technology (VoLTE, VoWiFi, RCS)
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AQuA is a unique technology that allows seamless voice and audio quality assessment in different networks.
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Sevana AQuA. End-to-end drive testing technology
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This document discusses objective quality measurement tools for evaluating voice quality over mobile networks.
It introduces AQuA, an artificial intelligence-based tool that provides more accurate quality scores than PESQ and POLQA by considering factors like codecs, technologies, impairments and languages.
AQuA and PVQA can analyze drive test recordings to generate MOS scores and identify issues like packet loss, hardware problems or network impairments that caused quality degradation.
Tables compare features of PESQ, POLQA and AQuA, showing AQuA can evaluate all audio types and technologies more comprehensively than the other tools.
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1. A brain-computer interface (BCI) allows direct communication between the brain and external devices, helping people with motor impairments and providing new functionality.
2. BCI can be invasive, using implants in the brain to detect high-quality signals, but these are prone to scar tissue buildup. Non-invasive BCIs use neuroimaging techniques but produce poorer signals.
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1) Brain-computer interface is a direct communication pathway between the brain and an external device that reads brain activity without muscle movements and translates it into commands for computers and other devices.
2) The objective of BCI is to develop a fast and reliable connection between the brain of a severely disabled person and a personal computer to allow communication and control through thought alone.
3) BCI research has progressed from animal experiments to human trials, allowing paralyzed patients to control devices and communicate just by thinking. However, widespread adoption is still limited by challenges with sensor accuracy, information transfer rates, and system costs.
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4G networks will continue to be deployed, with 5G coming into view - but data traffic may not grow to the degree expected. WiFi is growing in important - but will only have limited integration with cellular. Net Neutrality concerns will continue to rumble - but most of the new "ideas" like paid priority or sponsored data will fail.
We will also see "multi-stakeholder" issues coming to the fore, where regulators will need to ensure the telecom industry encompasses the needs of users, venues, app developers, IoT companies, brands & Internet players. That said, attempts by Apple and Google to enter the cellular space with SIMs and MVNOs will remain niche
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AQuA is available for all platforms (32bit and 64bit machines, Windows, Linux, MAC OS)
AQuA has a competitive computational performance
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AQuA has the most attractive pricing on the market
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1. A brain-computer interface (BCI) allows direct communication between the brain and external devices, helping people with motor impairments and providing new functionality.
2. BCI can be invasive, using implants in the brain to detect high-quality signals, but these are prone to scar tissue buildup. Non-invasive BCIs use neuroimaging techniques but produce poorer signals.
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1) Brain-computer interface is a direct communication pathway between the brain and an external device that reads brain activity without muscle movements and translates it into commands for computers and other devices.
2) The objective of BCI is to develop a fast and reliable connection between the brain of a severely disabled person and a personal computer to allow communication and control through thought alone.
3) BCI research has progressed from animal experiments to human trials, allowing paralyzed patients to control devices and communicate just by thinking. However, widespread adoption is still limited by challenges with sensor accuracy, information transfer rates, and system costs.
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The document provides an overview of Low Power Wide Area (LPWA) networks and technologies. It discusses that LPWA networks are needed to connect billions of low-power devices over long ranges using low-cost radio technologies. Examples of LPWA technologies include LoRa, SigFox, NB-IoT and EC-GPRS. The document also outlines potential use cases for LPWA networks in areas like smart cities, utilities, agriculture and more.
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4G networks will continue to be deployed, with 5G coming into view - but data traffic may not grow to the degree expected. WiFi is growing in important - but will only have limited integration with cellular. Net Neutrality concerns will continue to rumble - but most of the new "ideas" like paid priority or sponsored data will fail.
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AQuA - End-to-End Drive Testing Technology (VoLTE, VoWiFi, RCS)
- 1. AQuA – Your End-to-End Testing Technology Valeri Sitnikov Sevana Oü Tallinn, Estonia valeri.sitnikov@sevana.ee +3726170331
- 2. 3G UMTS End-to-End Drive Test 3G UMTS G.729 Drive Tester 3G Voice Core GPRS Packet Core AQuA PVQA Drive Test Analysis
- 3. 4G LTE End-to-End Drive Test 4G LTE AMR-WB Drive Tester Evolved Packet Core AQuA PVQA Drive Test Analysis
- 4. VoWi-Fi End-to-End Drive Test Drive Tester AQuA PVQA Drive Test Analysis Wi-Fi G.722 Internet
- 5. AQuA Metrics MOS score according to P.800 – reliable objective MOS scores from 1 to 5 Percentage of sound quality similarity between reference and test audio Duration distortion Delay or advancing of audio signal activity Sound signal activity mistiming Signal spectrum damages Signal spectrum vibration Unidirectional signal spectrum analysis: amplification or attenuation Most affected signal spectrum: low, medium, high bands Average pitch Pitch deviation Pitch frequencies distribution distortion Quantization steps distribution distortion Amplitude clipping level RMS Sound signal: Minimum Energy, Maximum Energy, Average Energy Sound signal: Min. Sample, Max. Sample, Average Sample
- 6. PESQ. POLQA. AQuA. Feature Comparison Table. Feature PESQ POLQA AQuA Measurements in wideband audio NO YES YES Accurate measurements in CDMA networks NO YES YES VAD detection in AMR codec NO YES YES GSM/WCDMA accurate measurements NO YES YES Variable delay up to 1 sec in VoIP NO YES YES
- 7. PESQ. POLQA. AQuA. Feature Comparison Table. Feature PESQ POLQA AQuA Strong linear distortions NO YES YES Limitations with speech enhancement devices (noise reduction, gain control) YES NO NO Works in NB (up to 8 kHz Sample Rate) bandwidths NO YES YES Works in WB (up to 16 kHz Sample Rate) bandwidths NO/YES YES YES Works in SWB (above 16 kHz Sample Rate) bandwidths NO YES YES
- 8. PESQ. POLQA. AQuA. Feature Comparison Table. Feature PESQ POLQA AQuA Works with audio sampling rate higher than 48kHz NO NO YES Works with all standard and non- standard codecs audio (AMR-WB, EVRC-WB, iLBC, AMB+, AAC, SLIK, G.711, G.729) NO YES YES Works with all technologies (GSM, WCDMA, LTE, VoIP, VoIP over IMS) NO YES YES Can be used in testing terminals and hand-free applications YES YES YES Considers codec degradations (tandem codecs, packet loss, frame errors, bit errors) NO YES YES
- 9. PESQ. POLQA. AQuA. Feature Comparison Table. Feature PESQ POLQA AQuA Customizable perceptual model and algorithm NO NO YES Considers network specific degradations NO YES YES Copes with P.800 MOS NO YES YES Talking quality YES NO NO/YES MOS score for long sequences of speech (more than 30 seconds) NO NO YES
- 10. PESQ. POLQA. AQuA. Feature Comparison Table. Feature PESQ POLQA AQuA Noisy listening environments NO NO YES Music clips NO NO YES Noise suppressors NO NO YES Non-telephony applications YES NO YES Language independent YES NO YES
- 11. PESQ. POLQA. AQuA. Feature Comparison Table. Feature PESQ POLQA AQuA Multi-dimensional audio(Works with Stereo) NO NO YES Unified perceptual model for all types of audio (speech, music) NO NO YES Able of working with long audio (1 hour and longer) NO NO YES AQuA has some key features vital for sound quality evaluation during deployment and operation of VoLTE, VoWi-Fi, RCS: Language independent Long test calls support Ability to work with Stereo sound
- 12. PVQA Metrics MOS score according to P.800 – reliable objective MOS scores from 1 to 5 Impairments detection (reasons for QoE drop down): Noise DeadAir Amplitude clipping VAD Clipping Clicking Crackling Fuzzy voice Echo DTMF By just waveform analysis PVQA is able to discover such network issues as f.e. Packet loss (DeadAir + Crackling) Hardware issues (Amplitude clipping, VAD clipping)
- 13. Pitch Relying on Sevana technologies for sound quality analysis you o Improve your systems QoE and invest in the future –waveform analysis works seamlessly for VoLTE, VoWiFi, RCS, or any future approach. o Free to work on the hardware of your choice. o Develop your own call quality monitoring solutions implemented by your own staff. o Automate call quality assessment and ease root cause identification
- 14. THANK YOU!