The document provides an update on CRC's open and free DAB tools. It discusses the Canadian context of digital radio, explains why CRC develops tools with open/free licenses, describes several of CRC's DAB tools including CRC-DABMUX, CRC-DABMOD and Openmokast, discusses limitations and future plans, and concludes by emphasizing the benefits of open source approaches.
Digital audio broadcasting (DAB) provides CD-quality sound, many station choices, and interference-free reception. It offers advantages over analog FM like high quality audio, error correction, and reduced multipath interference. DAB uses MPEG audio compression and OFDM modulation to transmit multiple signals over a single frequency band. While DAB coverage is still limited compared to FM in many areas, it provides better sound quality and has the potential to become the future of radio broadcasting worldwide as more countries adopt the technology.
This document discusses Digital Audio Broadcasting (DAB) systems. It provides an introduction to DAB and describes some of its key features like providing CD quality audio, robust reception, and ability to transmit ancillary data. It also discusses different DAB standards and specifications like Eureka 147, IBOC, and OFDM modulation. The document outlines the history of DAB and digital radio broadcasting. It provides block diagrams and descriptions of DAB and IBOC system implementations as well as challenges of radio signal propagation in mobile environments.
Digital radio uses digital coding instead of analog signals to convert sound into binary data for transmission and reception. It allows for more efficient use of frequencies, improved reception quality including in mobile situations, and enables new features like time shifting. Digital radio broadcasting is done through various methods including internet radio, cable, terrestrial systems like DAB/DAB+/DMB, and satellite. While digital radio broadcasting has been adopted in many countries, analog radio still exists in other areas.
The document provides an overview of the Digital Video Broadcast (DVB) Project. It discusses the DVB Forum and its timeline of standards development. Key DVB standards include DVB-S, DVB-C, DVB-T, DVB-H, and DVB-SH. The document compares DVB standards to competing standards and outlines the system architecture and protocol stack. It also notes that Huawei Satellite Communications (HSC) is exploring opportunities to leverage and integrate with various DVB standards.
DVB is a set of standards that define digital broadcasting using existing satellite, cable, and terrestrial infrastructures.
The term digital television is sometimes used as a synonym for DVB
This document provides a history of digital video broadcasting standards and technologies from the late 19th century to present day. It describes early communication technologies like the telegraph, radio, and television. It then outlines the development of key digital standards like DVB-S, DVB-C, DVB-T, and their technical specifications for satellite, cable and terrestrial transmission. The document also discusses newer standards and portable/mobile devices as the technologies evolved to support high definition and internet-based delivery.
The document provides an update on CRC's open and free DAB tools. It discusses the Canadian context of digital radio, explains why CRC develops tools with open/free licenses, describes several of CRC's DAB tools including CRC-DABMUX, CRC-DABMOD and Openmokast, discusses limitations and future plans, and concludes by emphasizing the benefits of open source approaches.
Digital audio broadcasting (DAB) provides CD-quality sound, many station choices, and interference-free reception. It offers advantages over analog FM like high quality audio, error correction, and reduced multipath interference. DAB uses MPEG audio compression and OFDM modulation to transmit multiple signals over a single frequency band. While DAB coverage is still limited compared to FM in many areas, it provides better sound quality and has the potential to become the future of radio broadcasting worldwide as more countries adopt the technology.
This document discusses Digital Audio Broadcasting (DAB) systems. It provides an introduction to DAB and describes some of its key features like providing CD quality audio, robust reception, and ability to transmit ancillary data. It also discusses different DAB standards and specifications like Eureka 147, IBOC, and OFDM modulation. The document outlines the history of DAB and digital radio broadcasting. It provides block diagrams and descriptions of DAB and IBOC system implementations as well as challenges of radio signal propagation in mobile environments.
Digital radio uses digital coding instead of analog signals to convert sound into binary data for transmission and reception. It allows for more efficient use of frequencies, improved reception quality including in mobile situations, and enables new features like time shifting. Digital radio broadcasting is done through various methods including internet radio, cable, terrestrial systems like DAB/DAB+/DMB, and satellite. While digital radio broadcasting has been adopted in many countries, analog radio still exists in other areas.
The document provides an overview of the Digital Video Broadcast (DVB) Project. It discusses the DVB Forum and its timeline of standards development. Key DVB standards include DVB-S, DVB-C, DVB-T, DVB-H, and DVB-SH. The document compares DVB standards to competing standards and outlines the system architecture and protocol stack. It also notes that Huawei Satellite Communications (HSC) is exploring opportunities to leverage and integrate with various DVB standards.
DVB is a set of standards that define digital broadcasting using existing satellite, cable, and terrestrial infrastructures.
The term digital television is sometimes used as a synonym for DVB
This document provides a history of digital video broadcasting standards and technologies from the late 19th century to present day. It describes early communication technologies like the telegraph, radio, and television. It then outlines the development of key digital standards like DVB-S, DVB-C, DVB-T, and their technical specifications for satellite, cable and terrestrial transmission. The document also discusses newer standards and portable/mobile devices as the technologies evolved to support high definition and internet-based delivery.
The document provides an overview of the DAB+ digital radio system, including its features and technical specifications. It describes the DAB family of standards, the ensemble and service structure, audio and data coding methods, emergency features, and system architectures. Key points include DAB+'s improved audio quality and capacity over DAB, its flexible ensemble and network structures, support for multimedia services, and emergency alerting capabilities.
The document discusses digital television terrestrial broadcasting standards, focusing on DTMB (Digital Terrestrial Multimedia Broadcast), the standard used in China. DTMB uses Time-domain Synchronous Orthogonal Frequency Division Multiplexing and supports various modulation schemes and frame structures. Field trials showed DTMB provided better picture and sound quality compared to analog transmission under different reception conditions. Hong Kong began official DTV broadcasting using DTMB in 2007.
Digital video broadcasting second generationqSusmita Pandey
Digital Video Broadcasting - Second Generation Terrestrial is the second generation standards for terrestrial transmission. to know more go though the slides
DAB (Digital Audio Broadcasting) is a digital broadcasting system for radio that provides listeners with more choice, better sound quality, and more information than analog radio. It allows broadcasters to transmit many more stations using the same frequency, and listeners can receive between 30-50 stations in major cities. DAB delivers improved sound quality by locking onto the strongest signal and eliminating hiss, crackle, and fade. Digital radios also allow listeners to easily tune to stations by name, display text information from stations, and pause, rewind, and record live radio.
This document provides an introduction to digital television. It discusses analog TV standards and the conversion to digital with ITU-BT.601 and BT.709 defining digital video formats. It describes MPEG-2 transport streams and tables for encoding digital TV signals. Standards for digital terrestrial, satellite and cable broadcasting networks are also summarized.
EBU DRW 2011 - CRC-mmbTools - Software Radio WorkshopPascal Charest
The document provides an overview of the CRC-mmbTools software suite for digital radio broadcasting. It discusses:
1. The CRC-mmbTools live CD and website, which contain various open-source tools for DAB/DAB+ broadcasting.
2. How to use the major tools - CRC-OpenMokast, CRC-DabMod, CRC-Dwap, and CRC-DabMux - including examples of basic and complex configurations.
3. How the tools support different types of service encoding for audio and multimedia content.
4. An overview of how the tools can be used for other modulations like FM and DRM broadcasting in addition to DAB
The document discusses digital terrestrial television broadcasting standards and deployments globally. It focuses on comparing DVB-T2's T2-Lite profile to DAB/DAB+ for digital radio broadcasting, showing that T2-Lite enables higher capacity, stronger signals, and larger coverage areas compared to DAB+ using the same or lower transmission power. Specific case studies of DVB-T2 deployments in Copenhagen and potential deployments in Thailand and India are also reviewed.
Digital Television (DTV) is a new type of broadcasting technology that will transform your television viewing experience. DTV enables broadcasters to offer television with movie-quality picture and sound. It can also offer multicasting and interactive capabilities.
DVB-T2 provides significant improvements over first generation digital terrestrial television solutions. It offers higher data rates and robustness, allowing for more programs including HDTV using less spectrum. The improved efficiency also reduces costs for broadcasters through lower infrastructure expenditures and operating expenses. DVB-T2 supports important features like emergency alerting, mobile reception, and pay television, while also maintaining competitive costs for consumer equipment.
Digital Radio Mondiale (DRM) is a global open digital radio standard developed as an improvement over analog AM broadcasting which suffers from low audio quality, interference, fading, and high operating costs. DRM converts audio to digital, multiplexes it with other data, applies channel coding for transmission robustness, and modulates the coded data onto radio frequencies, offering better audio quality, signal-to-noise ratio, and less distortion than analog AM radio.
The document discusses several topics related to digital broadcasting systems including:
1. DAB architecture and DVB container which are used for digital audio/video broadcasting over different mediums.
2. Unidirectional distribution systems which have limitations due to asymmetric bandwidth but can optimize transmissions through techniques like cyclic repetition.
3. Digital Audio Broadcasting (DAB) standards which use COFDM to transmit multiple audio and data services over radio frequencies with high quality and robustness.
Approach to handover in heterogeneous NetworkAdrian Hornsby
This document outlines an approach for seamless handover between DVB-H broadcast networks and Wi-Fi networks for mobile devices. It discusses the need to integrate heterogeneous networks to enhance coverage and addresses challenges like network and service discovery, selection algorithms, and a prototype implementation. The approach involves a network selection process using the Analytic Hierarchy Process to evaluate available networks and trigger handovers, with the goal of testing and validating an integrated system to enable continuous multimedia experiences across different access networks.
Open Software Platforms for Mobile Digital BroadcastingFrancois Lefebvre
Overview of CRC projects in digital radio software projects. Discussion of potential future projects. Presented in Gatineau to students and professors of Computer Science and Engineering Department of UQO
At Sveriges Radio, Stockholm February 6th 2015, Mr. Kenneth Wenzel from Open Channel in Denmark shared the experiences gained, from being the world’s first to deploy and trial digital radio based on the new DVB-T2 profile T2 Lite. The presentation proved the superiority and robustness of T2 Lite for digital radio, instead of DAB+, which is widely regarded as obsolete today.
Next Generation of Digital Radio & Mobile TV.
June 19th 2016 | Updated version (# 115) with more DVB-T2 mobile device, more countries case and a section on T2 Lite vs DAB+ plus a new section on HEVC.
Digital television receivers allow viewers to receive digital television signals. They contain components like a tuner to select channels, a demodulator to convert signals to a binary format, decoders to transform the digital bits into a viewable format, and a central control unit as the brain. Digital TV receivers provide advantages over analog TV like superior image quality, smaller bandwidth, and compatibility with computers and the internet. They can receive signals from different sources like terrestrial antennas, cable, satellite, or over the internet.
UWA M.E Project Report - Implementation of a Software FM Receiver using GNU R...Sameer Murthy
This document presents the design, testing and implementation of a software-defined radio (SDR) framework using GNU Radio and the Universal Software Radio Peripheral (USRP). As a case study, a simple frequency modulated (FM) radio receiver is implemented to demonstrate the flexibility of the SDR approach. The SDR system is tested on actual hardware using a PC to run the software and a USRP board to handle radio frequency signals. Results show the FM receiver can successfully demodulate signals and play the received audio. The document discusses key concepts in SDR such as GNU Radio, frequency modulation, and the promises of software-defined architectures over traditional rigid radio platforms.
DVB-T2 Lite for Digital Radio by Kenneth WenzelYOZZO
At Thailand’s Engineering Expo 2014, Kenneth Wenzel from Open Channel in Denmark, shared the experiences gained, from being the world’s first to deploy and trial digital radio based on the new DVB-T2 profile T2-Base-Lite. The presentation proved the superiority and robustness of T2 Lite for digital radio, instead of DAB+
The document introduces a digital TV/radio receiver product called MDTV/Radio Peripheral that can work with mobile devices. It discusses DAB coverage in different countries, various applications of DAB, challenges faced by DAB adoption, and features of the MDTV/Radio Peripheral product such as its small size, long battery life, and ability to connect to mobile phones, laptops and in-car computers. The product aims to help consumers enjoy digital radio more conveniently and help manufacturers and operators support digital radio services more flexibly.
IEEE Paper Implementation of Local Area Digital Audio Broadcasting System upo...Dweapons Art
This document summarizes a local area digital audio broadcasting system implemented over an I2C network. The key points are:
1. The system digitizes analog audio signals, compresses them using ADPCM, and transmits the data over an I2C bus network using simple twisted pair wiring.
2. Receivers can be individually addressed or broadcast to through the inclusion of a target address with each data packet. Encryption is also supported for secure communication.
3. The system uses low-cost hardware including a PCM codec chip and programmable SoPC. Software performs functions like ADPCM compression/decompression. This allows a flexible, cost-effective digital audio broadcasting network to be
The document provides an overview of the DAB+ digital radio system, including its features and technical specifications. It describes the DAB family of standards, the ensemble and service structure, audio and data coding methods, emergency features, and system architectures. Key points include DAB+'s improved audio quality and capacity over DAB, its flexible ensemble and network structures, support for multimedia services, and emergency alerting capabilities.
The document discusses digital television terrestrial broadcasting standards, focusing on DTMB (Digital Terrestrial Multimedia Broadcast), the standard used in China. DTMB uses Time-domain Synchronous Orthogonal Frequency Division Multiplexing and supports various modulation schemes and frame structures. Field trials showed DTMB provided better picture and sound quality compared to analog transmission under different reception conditions. Hong Kong began official DTV broadcasting using DTMB in 2007.
Digital video broadcasting second generationqSusmita Pandey
Digital Video Broadcasting - Second Generation Terrestrial is the second generation standards for terrestrial transmission. to know more go though the slides
DAB (Digital Audio Broadcasting) is a digital broadcasting system for radio that provides listeners with more choice, better sound quality, and more information than analog radio. It allows broadcasters to transmit many more stations using the same frequency, and listeners can receive between 30-50 stations in major cities. DAB delivers improved sound quality by locking onto the strongest signal and eliminating hiss, crackle, and fade. Digital radios also allow listeners to easily tune to stations by name, display text information from stations, and pause, rewind, and record live radio.
This document provides an introduction to digital television. It discusses analog TV standards and the conversion to digital with ITU-BT.601 and BT.709 defining digital video formats. It describes MPEG-2 transport streams and tables for encoding digital TV signals. Standards for digital terrestrial, satellite and cable broadcasting networks are also summarized.
EBU DRW 2011 - CRC-mmbTools - Software Radio WorkshopPascal Charest
The document provides an overview of the CRC-mmbTools software suite for digital radio broadcasting. It discusses:
1. The CRC-mmbTools live CD and website, which contain various open-source tools for DAB/DAB+ broadcasting.
2. How to use the major tools - CRC-OpenMokast, CRC-DabMod, CRC-Dwap, and CRC-DabMux - including examples of basic and complex configurations.
3. How the tools support different types of service encoding for audio and multimedia content.
4. An overview of how the tools can be used for other modulations like FM and DRM broadcasting in addition to DAB
The document discusses digital terrestrial television broadcasting standards and deployments globally. It focuses on comparing DVB-T2's T2-Lite profile to DAB/DAB+ for digital radio broadcasting, showing that T2-Lite enables higher capacity, stronger signals, and larger coverage areas compared to DAB+ using the same or lower transmission power. Specific case studies of DVB-T2 deployments in Copenhagen and potential deployments in Thailand and India are also reviewed.
Digital Television (DTV) is a new type of broadcasting technology that will transform your television viewing experience. DTV enables broadcasters to offer television with movie-quality picture and sound. It can also offer multicasting and interactive capabilities.
DVB-T2 provides significant improvements over first generation digital terrestrial television solutions. It offers higher data rates and robustness, allowing for more programs including HDTV using less spectrum. The improved efficiency also reduces costs for broadcasters through lower infrastructure expenditures and operating expenses. DVB-T2 supports important features like emergency alerting, mobile reception, and pay television, while also maintaining competitive costs for consumer equipment.
Digital Radio Mondiale (DRM) is a global open digital radio standard developed as an improvement over analog AM broadcasting which suffers from low audio quality, interference, fading, and high operating costs. DRM converts audio to digital, multiplexes it with other data, applies channel coding for transmission robustness, and modulates the coded data onto radio frequencies, offering better audio quality, signal-to-noise ratio, and less distortion than analog AM radio.
The document discusses several topics related to digital broadcasting systems including:
1. DAB architecture and DVB container which are used for digital audio/video broadcasting over different mediums.
2. Unidirectional distribution systems which have limitations due to asymmetric bandwidth but can optimize transmissions through techniques like cyclic repetition.
3. Digital Audio Broadcasting (DAB) standards which use COFDM to transmit multiple audio and data services over radio frequencies with high quality and robustness.
Approach to handover in heterogeneous NetworkAdrian Hornsby
This document outlines an approach for seamless handover between DVB-H broadcast networks and Wi-Fi networks for mobile devices. It discusses the need to integrate heterogeneous networks to enhance coverage and addresses challenges like network and service discovery, selection algorithms, and a prototype implementation. The approach involves a network selection process using the Analytic Hierarchy Process to evaluate available networks and trigger handovers, with the goal of testing and validating an integrated system to enable continuous multimedia experiences across different access networks.
Open Software Platforms for Mobile Digital BroadcastingFrancois Lefebvre
Overview of CRC projects in digital radio software projects. Discussion of potential future projects. Presented in Gatineau to students and professors of Computer Science and Engineering Department of UQO
At Sveriges Radio, Stockholm February 6th 2015, Mr. Kenneth Wenzel from Open Channel in Denmark shared the experiences gained, from being the world’s first to deploy and trial digital radio based on the new DVB-T2 profile T2 Lite. The presentation proved the superiority and robustness of T2 Lite for digital radio, instead of DAB+, which is widely regarded as obsolete today.
Next Generation of Digital Radio & Mobile TV.
June 19th 2016 | Updated version (# 115) with more DVB-T2 mobile device, more countries case and a section on T2 Lite vs DAB+ plus a new section on HEVC.
Digital television receivers allow viewers to receive digital television signals. They contain components like a tuner to select channels, a demodulator to convert signals to a binary format, decoders to transform the digital bits into a viewable format, and a central control unit as the brain. Digital TV receivers provide advantages over analog TV like superior image quality, smaller bandwidth, and compatibility with computers and the internet. They can receive signals from different sources like terrestrial antennas, cable, satellite, or over the internet.
UWA M.E Project Report - Implementation of a Software FM Receiver using GNU R...Sameer Murthy
This document presents the design, testing and implementation of a software-defined radio (SDR) framework using GNU Radio and the Universal Software Radio Peripheral (USRP). As a case study, a simple frequency modulated (FM) radio receiver is implemented to demonstrate the flexibility of the SDR approach. The SDR system is tested on actual hardware using a PC to run the software and a USRP board to handle radio frequency signals. Results show the FM receiver can successfully demodulate signals and play the received audio. The document discusses key concepts in SDR such as GNU Radio, frequency modulation, and the promises of software-defined architectures over traditional rigid radio platforms.
DVB-T2 Lite for Digital Radio by Kenneth WenzelYOZZO
At Thailand’s Engineering Expo 2014, Kenneth Wenzel from Open Channel in Denmark, shared the experiences gained, from being the world’s first to deploy and trial digital radio based on the new DVB-T2 profile T2-Base-Lite. The presentation proved the superiority and robustness of T2 Lite for digital radio, instead of DAB+
The document introduces a digital TV/radio receiver product called MDTV/Radio Peripheral that can work with mobile devices. It discusses DAB coverage in different countries, various applications of DAB, challenges faced by DAB adoption, and features of the MDTV/Radio Peripheral product such as its small size, long battery life, and ability to connect to mobile phones, laptops and in-car computers. The product aims to help consumers enjoy digital radio more conveniently and help manufacturers and operators support digital radio services more flexibly.
IEEE Paper Implementation of Local Area Digital Audio Broadcasting System upo...Dweapons Art
This document summarizes a local area digital audio broadcasting system implemented over an I2C network. The key points are:
1. The system digitizes analog audio signals, compresses them using ADPCM, and transmits the data over an I2C bus network using simple twisted pair wiring.
2. Receivers can be individually addressed or broadcast to through the inclusion of a target address with each data packet. Encryption is also supported for secure communication.
3. The system uses low-cost hardware including a PCM codec chip and programmable SoPC. Software performs functions like ADPCM compression/decompression. This allows a flexible, cost-effective digital audio broadcasting network to be
The document discusses various applications of OFDM technology including digital audio broadcasting (DAB), high-definition television (HDTV), and wireless local area networks. It provides an overview of DAB including its goals to improve sound quality and coverage compared to analog FM radio. It also summarizes the key aspects of the digital video broadcasting (DVB) standard used for digital television broadcasting via satellite, cable, and terrestrial methods.
Presented during the CCBN2008 China Digital Television Summit on March 22, 2008 in the China International Exhibition Center in Beijing, China. Lyle Sprinkle discusses new opportunities for digital, wireless content delivery technologies.
Mobile Communication Broadcast System Jochen SchillerSonali Chauhan
Unidirectional broadcast systems like radio and television distribute information to many users regardless of individual needs. As these systems transition to digital formats, they will be able to transmit multimedia content like audio, video and images at low cost alongside traditional broadcasts. Digital Audio Broadcasting (DAB) uses orthogonal frequency-division multiplexing (OFDM) and other techniques to transmit digital signals by radio.
In this presentation, production of digital audio is discussed. Also brief introduction about digital audio broadcast, recording techniques and stereo phony is given.
This document summarizes a presentation about metadata given to the EBU. It discusses the EBU's Expert Community on Metadata (EC-M) and their work developing EBUCore, a metadata schema. It describes EBUCore and its role as the "tip of the iceberg" with more detailed metadata below. It outlines the EC-M's activities related to production, distribution, and classification metadata. Finally, it previews upcoming work to develop an EBU object model and engage with other metadata groups like IPTC and SMPTE.
Hybrid radio combines broadcast radio with broadband/IP technologies. It allows for enriched content like on-demand listening and personalized content while maintaining the reliability and cost-effectiveness of traditional broadcast radio. The RadioDNS standard enables linking broadcast radio stations to their online content. The EBU has created free tools and services to help broadcasters set up hybrid radio services for their stations.
STN is a global provider of broadcast over satellite solutions established in 2004. It has expanded significantly since then and now offers a full range of playout, distribution, and transmission services for TV and radio channels from its state-of-the-art teleport facilities. STN provides access to over 20 satellite platforms worldwide and works with many of the largest broadcasters and content providers in the industry.
The document discusses future scenarios for broadcast spectrum use and technologies. It outlines possibilities for digital television and radio services, including full analog to digital transition or hybrid models. New services like mobile TV and radio are also discussed. The spectrum could be shared between broadcast services and other wireless technologies to provide broadband access. Overall broadcasting is expected to continue evolving to distribute multimedia content across various platforms and devices.
1) RNE currently uses several digital radio platforms like DAB, DRM, internet and is evaluating strategies to operate digital radio.
2) DAB was the first digital system adopted in Spain but saw slow growth and stagnation due to outdated technology and lack of receivers/audience. More efficient systems like DVB-H and DMB later emerged.
3) DAB+ was developed in 2007 to improve on original DAB, tripling capacity through more efficient codecs while DRM replaced analog MW and SW bands worldwide, gaining ITU endorsement. RNE already broadcasts digitally using DAB+ and DRM.
This document discusses how a public radio broadcaster in Sweden transitioned to using open source software like Kamailio, Baresip, Asterisk, and Homer for their IP-based broadcast infrastructure. It describes their journey from using proprietary ISDN equipment to building a flexible system using SIP, RTP, and IP that supports live broadcasting from mobile devices. The broadcaster is now working to share their work through the open source IRIS Broadcast project to help other public broadcasters transition to open standards and share best practices.
TELE-audiovision is the world's largest digital TV trade publication that has been published since 1981. It has a global readership of over 350,000 digital TV professionals. The magazine is published in 20 languages and focuses on topics related to satellite, OTT, smart TV, IPTV, streaming media and other emerging digital television technologies. It provides news, product reviews and reports on companies and developments in the global digital television industry.
The document discusses the EBU's extensive work in developing metadata standards and projects over many years. It has created standards like EBUCore, egtaMETA, and worked on projects involving descriptive metadata, acquisition metadata, semantic web/linked data, controlled vocabularies and more. Current areas of focus include automatic content extraction tools, mapping between standards, and developing shared resources and workspaces.
VoIP allows voice calls over the internet using IP packets. It has advantages over traditional telephone networks like lower costs and ability to make calls anywhere internet can reach. Quality of service for VoIP calls can be impacted by packet loss, delay, and jitter. Standards like H.323 and SIP define protocols for call signaling, while RTP and SRTP are used for media transport and security. H.323 specifies components like terminals, gateways, MCUs and gatekeepers that work together to enable VoIP calls.
IBOC (In Band On Channel) Technology for DIgital Radio.Ashik Ask
The engineering world has been working on the development and evaluation of IBOC transmission for some time. The NRSC began evaluation proceedings of general DAB systems in 1995. After the proponents merged into one, Ibiquity was left in the running for potential adoption. In the fall of 2001,the NRSC issued a report on Ibiquity's FM IBOC. This comprehensive report runs 62 pages of engineering material plus 13 appendices. All of the system with its blend-to analog operation as signals levels changes. The application of the FM IBOC has been studied by the NRSC and appears to be understood and accepted by radio engineers. AM IBOC has recently been studied by an NRSC working group as prelude to its adoption for general broadcast use .Its was presented during the NAB convention in April. The FM report covers eight areas of vital performance concerns to the broadcaster and listener alike .If all of these concerns can be met as successfully by AM IBOC, and the receiver manufactures rally to develop and produce the necessary receiving equipment. The evaluated FM concerns were audio quality, service area, acquisition performance, durability, auxiliary data capacity, and behavior as signal degrades stereo separation and flexibility.
The FM report paid strong attention to the use of SCA services on FM IBOC. About half of all the operating FM stations employ one or more SCAs for reading for the blind or similar services. Before going to the description of FM IBOC system, it is important to discuss the basic principles of digital radio, and IBOCtechnology.
Myths, Challenges and Advances in Power & Signal Distribution for Live Event ...Bob Vanden Burgt
The document discusses myths, challenges, and advances in power and signal distribution for live production over the past decade. Digital networking and power distribution requirements have changed substantially, presenting unique reliability and portability challenges with the tight integration of lighting, media, video, and audio in touring shows. The session will provide an overview of some transport protocols, network topologies, and more contemporary methods for distributing power and data in complex and changing production environments.
This document discusses key technologies for optical networks. It summarizes trends in optical networks including increasing capacity through higher spectral efficiency and new modulation formats. This allows increasing channel bit rates and implementing wavelength division multiplexing with more channels. A second trend is improving transparency by reducing the need for optical-electrical-optical conversion through advances in components like wavelength selective switches. This allows more traffic to pass through the network without regeneration. Achieving high transparency over long distances presents challenges around predicting and maintaining signal quality as it propagates through the fiber.
This document discusses key technologies for optical networks. It summarizes trends in optical networks including increasing capacity through higher spectral efficiency and new modulation formats. This allows increasing channel bit rates and implementing wavelength division multiplexing with closer channel spacing. A second trend is increasing transparency by avoiding optoelectronic regeneration, allowing wavelengths to pass through nodes without conversion. This reduces costs and power consumption. Challenges for transparent networks include accurately predicting quality of transmission over long distances and efficiently allocating resources.
TELE-satellite is the oldest and largest digital TV trade magazine in the world, established in 1981. It is seen by more than 350,000 digital TV professionals globally and published in 20 languages. The magazine covers topics such as satellite, IPTV, smart TV, streaming, audiovision, and digital technology developments. It provides product reports, company profiles, news, and a global directory of decision makers in the worldwide digital TV industry.
This document appears to be a magazine or journal focused on digital television technology. It contains several articles and reports on various digital TV products and companies, including reports on IPTV receivers, satellite receivers, signal analyzers, and network equipment. It also includes company profiles, news briefs, and listings of upcoming industry events and trade shows. The publication seems aimed at industry professionals working in digital television globally.
Digital broadcasting makes more efficient use of limited radio spectrum bandwidth than analogue broadcasting. As society demands more choice and content, digital broadcasting allows more channels to be transmitted within the same bandwidth. All broadcasting is expected to transition to digital as analogue TV switch-off begins between 2007-2012, and digital distribution over the internet breaks down traditional broadcasting models.
This document provides an overview of fiber to the x (FTTX) networks using passive optical networks (PON). It begins with an introduction to FTTX and PON technologies. It then discusses the different PON architectures including point-to-multipoint PON using optical splitters, active optical networks with dedicated fibers, and hybrid networks. The document also covers considerations for PON including bandwidth, distance, security, quality of service, and future developments in PON technologies.
Project of Digitisation of the Czech TV Archive - Martin Bouda (Czech TV, CZ)EUscreen
Presentation by Martin Bouda about the digitisation process of the Czech TV archives at the Second EUscreen International Conference on Use and Creativity, which took place at the National Library of Sweden, Stockholm, on September 15-16, 2011.
For the full video of this presentation, please visit: https://www.edge-ai-vision.com/2024/06/building-and-scaling-ai-applications-with-the-nx-ai-manager-a-presentation-from-network-optix/
Robin van Emden, Senior Director of Data Science at Network Optix, presents the “Building and Scaling AI Applications with the Nx AI Manager,” tutorial at the May 2024 Embedded Vision Summit.
In this presentation, van Emden covers the basics of scaling edge AI solutions using the Nx tool kit. He emphasizes the process of developing AI models and deploying them globally. He also showcases the conversion of AI models and the creation of effective edge AI pipelines, with a focus on pre-processing, model conversion, selecting the appropriate inference engine for the target hardware and post-processing.
van Emden shows how Nx can simplify the developer’s life and facilitate a rapid transition from concept to production-ready applications.He provides valuable insights into developing scalable and efficient edge AI solutions, with a strong focus on practical implementation.
Climate Impact of Software Testing at Nordic Testing DaysKari Kakkonen
My slides at Nordic Testing Days 6.6.2024
Climate impact / sustainability of software testing discussed on the talk. ICT and testing must carry their part of global responsibility to help with the climat warming. We can minimize the carbon footprint but we can also have a carbon handprint, a positive impact on the climate. Quality characteristics can be added with sustainability, and then measured continuously. Test environments can be used less, and in smaller scale and on demand. Test techniques can be used in optimizing or minimizing number of tests. Test automation can be used to speed up testing.
Ocean lotus Threat actors project by John Sitima 2024 (1).pptxSitimaJohn
Ocean Lotus cyber threat actors represent a sophisticated, persistent, and politically motivated group that poses a significant risk to organizations and individuals in the Southeast Asian region. Their continuous evolution and adaptability underscore the need for robust cybersecurity measures and international cooperation to identify and mitigate the threats posed by such advanced persistent threat groups.
How to Get CNIC Information System with Paksim Ga.pptxdanishmna97
Pakdata Cf is a groundbreaking system designed to streamline and facilitate access to CNIC information. This innovative platform leverages advanced technology to provide users with efficient and secure access to their CNIC details.
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAUpanagenda
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-und-domino-lizenzkostenreduzierung-in-der-welt-von-dlau/
DLAU und die Lizenzen nach dem CCB- und CCX-Modell sind für viele in der HCL-Community seit letztem Jahr ein heißes Thema. Als Notes- oder Domino-Kunde haben Sie vielleicht mit unerwartet hohen Benutzerzahlen und Lizenzgebühren zu kämpfen. Sie fragen sich vielleicht, wie diese neue Art der Lizenzierung funktioniert und welchen Nutzen sie Ihnen bringt. Vor allem wollen Sie sicherlich Ihr Budget einhalten und Kosten sparen, wo immer möglich. Das verstehen wir und wir möchten Ihnen dabei helfen!
Wir erklären Ihnen, wie Sie häufige Konfigurationsprobleme lösen können, die dazu führen können, dass mehr Benutzer gezählt werden als nötig, und wie Sie überflüssige oder ungenutzte Konten identifizieren und entfernen können, um Geld zu sparen. Es gibt auch einige Ansätze, die zu unnötigen Ausgaben führen können, z. B. wenn ein Personendokument anstelle eines Mail-Ins für geteilte Mailboxen verwendet wird. Wir zeigen Ihnen solche Fälle und deren Lösungen. Und natürlich erklären wir Ihnen das neue Lizenzmodell.
Nehmen Sie an diesem Webinar teil, bei dem HCL-Ambassador Marc Thomas und Gastredner Franz Walder Ihnen diese neue Welt näherbringen. Es vermittelt Ihnen die Tools und das Know-how, um den Überblick zu bewahren. Sie werden in der Lage sein, Ihre Kosten durch eine optimierte Domino-Konfiguration zu reduzieren und auch in Zukunft gering zu halten.
Diese Themen werden behandelt
- Reduzierung der Lizenzkosten durch Auffinden und Beheben von Fehlkonfigurationen und überflüssigen Konten
- Wie funktionieren CCB- und CCX-Lizenzen wirklich?
- Verstehen des DLAU-Tools und wie man es am besten nutzt
- Tipps für häufige Problembereiche, wie z. B. Team-Postfächer, Funktions-/Testbenutzer usw.
- Praxisbeispiele und Best Practices zum sofortigen Umsetzen
Your One-Stop Shop for Python Success: Top 10 US Python Development Providersakankshawande
Simplify your search for a reliable Python development partner! This list presents the top 10 trusted US providers offering comprehensive Python development services, ensuring your project's success from conception to completion.
OpenID AuthZEN Interop Read Out - AuthorizationDavid Brossard
During Identiverse 2024 and EIC 2024, members of the OpenID AuthZEN WG got together and demoed their authorization endpoints conforming to the AuthZEN API
Have you ever been confused by the myriad of choices offered by AWS for hosting a website or an API?
Lambda, Elastic Beanstalk, Lightsail, Amplify, S3 (and more!) can each host websites + APIs. But which one should we choose?
Which one is cheapest? Which one is fastest? Which one will scale to meet our needs?
Join me in this session as we dive into each AWS hosting service to determine which one is best for your scenario and explain why!
Fueling AI with Great Data with Airbyte WebinarZilliz
This talk will focus on how to collect data from a variety of sources, leveraging this data for RAG and other GenAI use cases, and finally charting your course to productionalization.
Essentials of Automations: The Art of Triggers and Actions in FMESafe Software
In this second installment of our Essentials of Automations webinar series, we’ll explore the landscape of triggers and actions, guiding you through the nuances of authoring and adapting workspaces for seamless automations. Gain an understanding of the full spectrum of triggers and actions available in FME, empowering you to enhance your workspaces for efficient automation.
We’ll kick things off by showcasing the most commonly used event-based triggers, introducing you to various automation workflows like manual triggers, schedules, directory watchers, and more. Plus, see how these elements play out in real scenarios.
Whether you’re tweaking your current setup or building from the ground up, this session will arm you with the tools and insights needed to transform your FME usage into a powerhouse of productivity. Join us to discover effective strategies that simplify complex processes, enhancing your productivity and transforming your data management practices with FME. Let’s turn complexity into clarity and make your workspaces work wonders!
Infrastructure Challenges in Scaling RAG with Custom AI modelsZilliz
Building Retrieval-Augmented Generation (RAG) systems with open-source and custom AI models is a complex task. This talk explores the challenges in productionizing RAG systems, including retrieval performance, response synthesis, and evaluation. We’ll discuss how to leverage open-source models like text embeddings, language models, and custom fine-tuned models to enhance RAG performance. Additionally, we’ll cover how BentoML can help orchestrate and scale these AI components efficiently, ensuring seamless deployment and management of RAG systems in the cloud.
Unlocking Productivity: Leveraging the Potential of Copilot in Microsoft 365, a presentation by Christoforos Vlachos, Senior Solutions Manager – Modern Workplace, Uni Systems
In the rapidly evolving landscape of technologies, XML continues to play a vital role in structuring, storing, and transporting data across diverse systems. The recent advancements in artificial intelligence (AI) present new methodologies for enhancing XML development workflows, introducing efficiency, automation, and intelligent capabilities. This presentation will outline the scope and perspective of utilizing AI in XML development. The potential benefits and the possible pitfalls will be highlighted, providing a balanced view of the subject.
We will explore the capabilities of AI in understanding XML markup languages and autonomously creating structured XML content. Additionally, we will examine the capacity of AI to enrich plain text with appropriate XML markup. Practical examples and methodological guidelines will be provided to elucidate how AI can be effectively prompted to interpret and generate accurate XML markup.
Further emphasis will be placed on the role of AI in developing XSLT, or schemas such as XSD and Schematron. We will address the techniques and strategies adopted to create prompts for generating code, explaining code, or refactoring the code, and the results achieved.
The discussion will extend to how AI can be used to transform XML content. In particular, the focus will be on the use of AI XPath extension functions in XSLT, Schematron, Schematron Quick Fixes, or for XML content refactoring.
The presentation aims to deliver a comprehensive overview of AI usage in XML development, providing attendees with the necessary knowledge to make informed decisions. Whether you’re at the early stages of adopting AI or considering integrating it in advanced XML development, this presentation will cover all levels of expertise.
By highlighting the potential advantages and challenges of integrating AI with XML development tools and languages, the presentation seeks to inspire thoughtful conversation around the future of XML development. We’ll not only delve into the technical aspects of AI-powered XML development but also discuss practical implications and possible future directions.
1. EBU TECHNICAL
Local DAB broadcasting
WorldDMB General AssemblyWorldDMB General Assembly
Belfast - 27Belfast - 27thth
October 2010October 2010
Mathias Coinchon
EBU TECHNICAL
European Broadcasting Union
2. EBU TECHNICAL - your reference in media technology and innovation
Digital radio,
far too complex/costly
for small radios
or experimenters ?
3. EBU TECHNICAL - your reference in media technology and innovation
It may not be the case
anymore...
(since the democratisation of
software defined radio)
4. EBU TECHNICAL - your reference in media technology and innovation
Software defined radio
5. EBU TECHNICAL - your reference in media technology and innovation
Traditional approach of radio transmission/reception
Specific dedicated hardware
Limited flexibility
Few possibilities of evolution
6. EBU TECHNICAL - your reference in media technology and innovation
Software Defined Radio (SDR) Principle
Generic hardware
– « Like a soundcard » but for radio waves
Software (de-)modulation
– can run on PC
⇒high flexibility, limited by CPU/Interface
Antenna
7. EBU TECHNICAL - your reference in media technology and innovation
Democratisation of Software Defined Radio
Gnuradio: open software radio blocks
– The « Lego » of Radio
USRP: Universal Software Radio Peripheral
– Open hardware solution sold by Ettus
8. EBU TECHNICAL - your reference in media technology and innovation
What you can do with the USRP and a PC
FM RDS transmission and reception
DAB/DAB+ transmission (CRC-mmbTools)
DRM/DRM+ transmission/reception (Spark, Dream)
Local GSM (OpenBTS project)
GPS receiver
Aircraft beacon receiver
Passive Radar
DECT, RFID, Wifi, etc
Anything within the limits of your imagination and
CPU
9. EBU TECHNICAL - your reference in media technology and innovation
DAB Software Radio
Developed by Communication Research Center (CRC),
Canada
– Francois Lefebvre, Pascal Charest
– First public demo at IBC2006
– Presented to WorldDMB TC, Eindhoven 09/2006 (TC-372)
CRC-DABMUX: DAB/DAB+/DMB Multiplexer
CRC-DABMOD: DAB Mode II OFDM modulator (no SFN)
Other tools for slideshow, CELT, DAB+, etc
Open sourced in 2009-2010 (GPL license)
http://mmbtools.crc.ca
10. EBU TECHNICAL - your reference in media technology and innovation
Application: Performance at Label Suisse festival
Live local broadcasting of 8 DAB channels
Audio from a video projection of 8 music bands playing
First licensed DAB transmission fully open source
Warning:
This is not
an EBU
project
11. EBU TECHNICAL - your reference in media technology and innovation
Application: Performance at Label Suisse festival
DAB transmission by Maxxima
Video projection by MXLab
More information on http://www.opendigitalradio.org
12. EBU TECHNICAL - your reference in media technology and innovation
Integrating open source blocks on Linux
PCM MPEG
ETI
IQUSB
13. EBU TECHNICAL - your reference in media technology and innovation
Application: Multiplatform & Hybrid Radio demo
Generation of any DAB or FM RDS broadcast signals
(and also DRM, DAB slideshow)
FM+RadioDN
S
DRM Slideshow DAB+RadioDNS
DAB Slideshow
14. EBU TECHNICAL - your reference in media technology and innovation
Application: EBU Multiplatform hybrid demo at IBC
15. EBU TECHNICAL - your reference in media technology and innovation
DAB/DAB+ (and FM, DRM, streaming) in a box
16. EBU TECHNICAL - your reference in media technology and innovation
Application: The EBU demo at IBC 2010
Local DAB coverage at IBC
DAB/DAB+ live and DMB pre-recorded
Equipment for DAB transmission:
– PC: ~800€
– Linux, gnuradio, CRC-mmbTools: 0€
– USRP + RF frontend: 1150$ (~820€)
– Amplifier 35 Watts CW, 6W OFDM: ~ 150€
– VHF Mask Filter, 6 cavities: 1300 €
– VHF 5dB 3 elements Antenna: 300€
– Small equipment: 100€
– TOTAL: ~ 3500 €
17. EBU TECHNICAL - your reference in media technology and innovation
Under development (Warning: not an EBU project)
Higher power transmission for coverage of a city
Temporary digital licence (Maxxima radio project)
600W (CW) class AB
amplifier
development
by Stan Roehrich
Maxxima.org
18. EBU TECHNICAL - your reference in media technology and innovation
Demo
19. EBU TECHNICAL - your reference in media technology and innovation
Conclusion
20. EBU TECHNICAL - your reference in media technology and innovation
Conclusion
Digital radio transmission gets democratised
This solution is EXPERIMENTAL
– And we are not selling a solution nor providing any service
Good for experimentation, local broadcasting, etc
Not a threat for DAB industry but an opportunity
– Open/democratised tools enable innovation (Internet example)
All this is possible thanks to major CRC investment
in DAB software now offered as free open source
project
Will you participate to the future enhancements ?