The document discusses MPEG Transport Stream (TS) logging and quality of experience (QoE) monitoring capabilities provided by Volicon's Observer TS product. The Observer TS allows networks, broadcasters, cable, and IPTV operators to continuously log and monitor MPEG transport streams to troubleshoot issues, ensure regulatory compliance, and analyze content quality. It provides native MPEG TS logging, QoE analysis and alerting, metadata monitoring, and content export abilities in an interface familiar to users of Volicon's Observer products.
We live in the age of the digital packet. Documents, images, music, phone calls all get chopped up, propelled through networks, and reassembled at the other end according to Internet protocol. So why not TV? Today, IPTV (Internet Protocol Television) is creating headlines all over the world. This mass publicity is the result of numerous instances and stories depicting its humble deployments and its future. IPTV is a very useful system, through which you can receive both TV and video signals along with other multimedia services by means of your Internet connection. In nutshell, it is nothing but a broadband connection and a system to deliver various programs of television using the Internet protocol (i.e., language) over computer networks. It is important to remember that IPTV is not like any ordinary television program broadcast through the Internet, but rather it is unique in itself. Its contour is represented by a closed, proprietary TV system which is similar to the cable services present today. But, in contrast, the delivery of IPTV is made via IP-based secure channels, which result in a sharp increase in content distribution control.
It is important to remember that IPTV is not like any ordinary television program broadcast through the Internet, but rather it is unique in itself. Its contour is represented by a closed, proprietary TV system which is similar to the cable services present today. But, in contrast, the delivery of IPTV is made via IP-based secure channels, which result in a sharp increase in content distribution control.
Overview of VoIP (Voice over IP) and FoIP (Fax over IP) technologies like Session Initiation Protocol and H.323.
Even though voice over IP (VoIP) was hailed as a technological innovation, the idea to transport real-time traffic over TCP/IP networks was not new back in the 1990s when VoIP started being deployed in networks. Chapter 2.5 of the venerable RFC793 (TCP) shows both data oriented application traffic as well as voice being transported over IP based networks.
Nevertheless, VoIP puts high demands on signal and protocol processing capabilities so it became possible at reasonable costs only in the 1990s.
VoIP can be roughly split into two main functions. Signaling protocols like SIP (Session Initiation Protocol), H.323 and MGCP/H.248 are used to establish a conference session and the data path for transporting real-time voice data packets. SIP has largely supplanted H.323 in recent years to its simpler structure and packet sequences. MGCP and H.248 are mostly used in carrier backbone networks.
Protocols like RTP (Real Time Protocol) transport voice packets and provide the necessary information for receivers to equalize packet flow variations to provide a smooth playback of the original voice signal.
Voice codecs are one of the core functions of the data path. Voice compression reduces the bandwidth required to transport voice over an IP based network. Compression may be less of a concern in local area networks with gigabit speeds, on slower links like 3G (UMTS, LTE) it still makes a lot of sense.
The algorithms used in different codecs make use of various characteristics of the characteristics of human speech recognition. Redundant information is removed from the signals thus slightly reducing the quality, but greatly reducing the required bandwidth.
In VoIP networks, the echo problem is typically compounded by the increased delay incurred by packetization of voice signals. To counteract the echo problem, VoIP gear (hard phones, soft phones, gateways) include echo cancelers to remove echo signals from the transmit signal.
To transport facsimile over an IP based network, even more technology is needed. Facsimile protocols are very susceptible to delay and delay variation and thus need more compensation algorithms. Protocols like T.38 terminate facsimile protocols like T.30 (analog facsimile) and transport the fax images as digitized pictures over IP based networks.
9.) audio video ethernet (avb cobra net dante)Jeff Green
Replacing a crossbar switch with ‘virtual’ IP packet switching - The ability to expand video-over-IP systems ‘one piece at a time’ and the decentralized nature of the matrix makes the technology very compelling for any size or scope of AV project.. AV-over-IP is the transport of AV signals over a standard Ethernet network, including…
HD Video (e.g. HDMI, DVI)
Audio
Control Signals (e.g. IR)
Peripheral Signals (e.g. USB)
Does Dante require special switches? No. We strongly recommend that Gigabit switches be used due to the clear advantages in performance and scalability.
Does Dante require a dedicated network infrastructure? No, a dedicated network infrastructure is not required. Dante-enabled devices can happily coexist with other equipment making use of the network, such as general purpose PCs sending and receiving email and other data.
Does Dante require any special network infrastructure? No, special network infrastructure is not required. Since Dante is based upon universally accepted networking standards, Dante-enabled devices can be connected using inexpensive off-the-shelf Ethernet switches and cabling.
What features are important when purchasing a switch? Dante makes use of standard Voice over IP (VoIP) Quality of Service (QoS) switch features, to prioritize clock sync and audio traffic over other network traffic. VoIP QoS features are available in a variety of inexpensive and enterprise Ethernet switches. Any switches with the following features should be appropriate for use with Dante:
Gigabit ports for inter-switch connections
Quality of Service (QoS) with 4 queues
Diffserv (DSCP) QoS, with strict priority
Totally new to AV over IT? This may help. If you have worked with any of the popular protocols, your time is better spent in other sessions. AV over IT methods vary in application of OSI model. Audio Networking - One RJ45 and CAT5 cable for dozens of signal paths. Switches can provide hardware time stamping which allows synchronization, offsets, and corrections. All covered in IEEE 1588.
Ethernet Timing & Priority Standards - All audio over Ethernet protocols require Priority, Sequence, & Sync
Differentiated Services / Quality of Service (DiffServ, QoS)
Priority by data type (Clock Sync and Audio Packets over Email)
Traffic prioritized based upon tags in IP Header (Layer 3)
Priority number assigned by manage switch to each packet
Real-time Transport Protocol (RTP)
Keeps data sequenced in the right order
Time stamp on UDP header
Works with RTCP (Real Time Control Protocol) for QoS and Sync
Variation: RTSP (Real Time Streaming Protocol) works on TCP and not UDP
Does not reserve resources or provide for quality of service
Precision Timing Protocol (PTP)
IEEE 1588
Sub-microsecond accuracy to synchronize subnets
Layer 2 - Switches provide hardware-based time stamping
We live in the age of the digital packet. Documents, images, music, phone calls all get chopped up, propelled through networks, and reassembled at the other end according to Internet protocol. So why not TV? Today, IPTV (Internet Protocol Television) is creating headlines all over the world. This mass publicity is the result of numerous instances and stories depicting its humble deployments and its future. IPTV is a very useful system, through which you can receive both TV and video signals along with other multimedia services by means of your Internet connection. In nutshell, it is nothing but a broadband connection and a system to deliver various programs of television using the Internet protocol (i.e., language) over computer networks. It is important to remember that IPTV is not like any ordinary television program broadcast through the Internet, but rather it is unique in itself. Its contour is represented by a closed, proprietary TV system which is similar to the cable services present today. But, in contrast, the delivery of IPTV is made via IP-based secure channels, which result in a sharp increase in content distribution control.
It is important to remember that IPTV is not like any ordinary television program broadcast through the Internet, but rather it is unique in itself. Its contour is represented by a closed, proprietary TV system which is similar to the cable services present today. But, in contrast, the delivery of IPTV is made via IP-based secure channels, which result in a sharp increase in content distribution control.
Overview of VoIP (Voice over IP) and FoIP (Fax over IP) technologies like Session Initiation Protocol and H.323.
Even though voice over IP (VoIP) was hailed as a technological innovation, the idea to transport real-time traffic over TCP/IP networks was not new back in the 1990s when VoIP started being deployed in networks. Chapter 2.5 of the venerable RFC793 (TCP) shows both data oriented application traffic as well as voice being transported over IP based networks.
Nevertheless, VoIP puts high demands on signal and protocol processing capabilities so it became possible at reasonable costs only in the 1990s.
VoIP can be roughly split into two main functions. Signaling protocols like SIP (Session Initiation Protocol), H.323 and MGCP/H.248 are used to establish a conference session and the data path for transporting real-time voice data packets. SIP has largely supplanted H.323 in recent years to its simpler structure and packet sequences. MGCP and H.248 are mostly used in carrier backbone networks.
Protocols like RTP (Real Time Protocol) transport voice packets and provide the necessary information for receivers to equalize packet flow variations to provide a smooth playback of the original voice signal.
Voice codecs are one of the core functions of the data path. Voice compression reduces the bandwidth required to transport voice over an IP based network. Compression may be less of a concern in local area networks with gigabit speeds, on slower links like 3G (UMTS, LTE) it still makes a lot of sense.
The algorithms used in different codecs make use of various characteristics of the characteristics of human speech recognition. Redundant information is removed from the signals thus slightly reducing the quality, but greatly reducing the required bandwidth.
In VoIP networks, the echo problem is typically compounded by the increased delay incurred by packetization of voice signals. To counteract the echo problem, VoIP gear (hard phones, soft phones, gateways) include echo cancelers to remove echo signals from the transmit signal.
To transport facsimile over an IP based network, even more technology is needed. Facsimile protocols are very susceptible to delay and delay variation and thus need more compensation algorithms. Protocols like T.38 terminate facsimile protocols like T.30 (analog facsimile) and transport the fax images as digitized pictures over IP based networks.
9.) audio video ethernet (avb cobra net dante)Jeff Green
Replacing a crossbar switch with ‘virtual’ IP packet switching - The ability to expand video-over-IP systems ‘one piece at a time’ and the decentralized nature of the matrix makes the technology very compelling for any size or scope of AV project.. AV-over-IP is the transport of AV signals over a standard Ethernet network, including…
HD Video (e.g. HDMI, DVI)
Audio
Control Signals (e.g. IR)
Peripheral Signals (e.g. USB)
Does Dante require special switches? No. We strongly recommend that Gigabit switches be used due to the clear advantages in performance and scalability.
Does Dante require a dedicated network infrastructure? No, a dedicated network infrastructure is not required. Dante-enabled devices can happily coexist with other equipment making use of the network, such as general purpose PCs sending and receiving email and other data.
Does Dante require any special network infrastructure? No, special network infrastructure is not required. Since Dante is based upon universally accepted networking standards, Dante-enabled devices can be connected using inexpensive off-the-shelf Ethernet switches and cabling.
What features are important when purchasing a switch? Dante makes use of standard Voice over IP (VoIP) Quality of Service (QoS) switch features, to prioritize clock sync and audio traffic over other network traffic. VoIP QoS features are available in a variety of inexpensive and enterprise Ethernet switches. Any switches with the following features should be appropriate for use with Dante:
Gigabit ports for inter-switch connections
Quality of Service (QoS) with 4 queues
Diffserv (DSCP) QoS, with strict priority
Totally new to AV over IT? This may help. If you have worked with any of the popular protocols, your time is better spent in other sessions. AV over IT methods vary in application of OSI model. Audio Networking - One RJ45 and CAT5 cable for dozens of signal paths. Switches can provide hardware time stamping which allows synchronization, offsets, and corrections. All covered in IEEE 1588.
Ethernet Timing & Priority Standards - All audio over Ethernet protocols require Priority, Sequence, & Sync
Differentiated Services / Quality of Service (DiffServ, QoS)
Priority by data type (Clock Sync and Audio Packets over Email)
Traffic prioritized based upon tags in IP Header (Layer 3)
Priority number assigned by manage switch to each packet
Real-time Transport Protocol (RTP)
Keeps data sequenced in the right order
Time stamp on UDP header
Works with RTCP (Real Time Control Protocol) for QoS and Sync
Variation: RTSP (Real Time Streaming Protocol) works on TCP and not UDP
Does not reserve resources or provide for quality of service
Precision Timing Protocol (PTP)
IEEE 1588
Sub-microsecond accuracy to synchronize subnets
Layer 2 - Switches provide hardware-based time stamping
Audio video ethernet (avb cobra net dante)Jeff Green
AVB fits low-cost, small-form-factor products such as this microphone. The overall trend is that music no longer lives on shelves or in CD racks, but in hard drives in home computers, and increasingly in the cloud. This brings about its own unique problems, not in the encoding system used, or the storage technology, but in distributing the audio from the storage media to the speakers. AVB features are all enabled by a global and port level configuration. Connecting these elements is the AVB-enabled switch (in the graphic above, the Extreme Networks® Summit® X440.) The role of the switch is to provide support for the control protocols: AVB is Ethernet’s next stage of convergence, delivering pitch perfect audio and crystal clear video seamlessly over the network
IP/Ethernet is bringing simplicity and features to audio and video as it has brought to services like VoIP, Storage and many more
High quality, perfectly synchronized A/V until now has been difficult to maintain
Standards work by the IEEE and the AVB standard changes everything, creating interoperability and mass-marketing equipment pricing
Benefits of AVB - Delivers predictable latency and precise synchronization, maximizing the functionality of AV – time synchronization and quality or service
Reduced complexity and Ease of use through interoperability between devices
Streamlines complex network set-up and management, the Infrastructure negotiates and manages the network for optimal prioritized media transport
AV traffic can co-exist with non-AV traffic on same Ethernet infrastructure
Role based control at the XYZ Account - XYZ Account can identify devices and apply policies based on device type all the way down to the port and or the AP. Policies can dynamically change based on the device a user is connecting with and where that user is located. Extreme Networks provides infrastructure to deliver customizable prioritization and scalable capacity via configurable and built-in intelligence, ensuring a comprehensive, superior quality experience. Furthermore, when deployed with Extreme Wireless XYZ Account can configure the network to ensure applications receive the bandwidth they require, while still limiting or preventing high speed streaming of music of video or even games.
Bachelor Thesis Presentation: Analysis and Simulation Of Channel Switching In...Laili Aidi
This thesis discusses how to build a mobile TV service system that has the ability to do fast channel switching mechanism. The simulation is done by analyzing the system objectively and subjectively. and compared with the mechanism without fast channel switching. From the results of the analysis, it was found that fast channel switching mechanism capable of minimizing delays and improving the user experience to make the channel switch, compared with the mechanism without fast channel switching
Teknologi dan layanan IPTV di Indonesia relatif masih baru, bahkan PT Telekomunikasi Indonesia sebagai pionir layanan telekomunikasi baru mengimplementasikan IPTV pada awal tahun 2011. Presentasi inio akan memberikan wawasan tentang implementasi IPTV. (Oleh John Sihotang)
It was a professional presentation for niksun, but most of the project related content and designs are removed. Only basics and some feature of IPTV is uploaded in these slides.
This article introduces a view of a generic Service Provider IP distribution system including DVB's IP standard; a comparison of Internet and managed SP IP video distribution; how a broadcaster can inject TV programming into the Internet and, finally, how to control the Quality of Experience of video in an IP network.
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdfPaige Cruz
Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
FIDO Alliance Osaka Seminar: Passkeys and the Road Ahead.pdf
Observer ts
1. MPEG Transport Stream (TS) Logging
and QoE Monitoring
Networks, Stations, Cable and IPTV operators are continually
challenged to do more with less. They need to assure an ever
increasing array of high quality digital programming, handle
broadening array of regulatory requests, while delivering an
increasingly complex metadata (DVB subtitles, EIT/PSIP, interac-
tivity) to leverage the new digital TV ecosystem. To do this,
networks, stations and operators must be able to proactively
monitor and quickly troubleshoot items from the details of MPEG
metadata all the way down to the quality of the rendered content.
Based on Volicon’s award-winning broadcast Observer system,
MPEG Transport Stream (TS) logging with the Observer TS®
enables networks, broadcasters, Cable and IPTV operators to do
more than ever before. With continuous logging of MPEG
transport streams, monitoring program QoE, and the ability to
seamlessly export and stream MPEG TS or low resolution
proxies, the Observer TS allows for efficient operation with
WAN and enterprise wide clients. Logging the native MPEG TS
greatly simplifies troubleshooting, chronic resolution, and
regulatory proof of conformance. This capability is an add-on
to the core Observer feature set opening the door for a variety
of new use cases.
Key Benefits:
• Same familiar Observer interface and
enhanced features
• Native MPEG TS (ASI/IP/DVB) logging
• Simplifies signal flow for broadcast logging
• Improved logging density – more streams
per Rack Unit (RU)
• Low resolution proxy allows for affordable
long term storage
• Operation over WAN enterprise with low res proxy
• Easy repurposing of full rate and resolution TS log
• Content QoE Analysis and alarming - SNMP or email
• Off line analysis of MPEG metadata: AC-3, Dialnorm,
PSIP, DVB-Subtitles, TR 101 290
Key Use Cases:
• Broadcast and Network compliance logging
• Cable and IPTV ingest logging and monitoring
• Content repurposing
• Media monitoring digital TV broadcasts