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Livewire (networking)
Livewire is an audio-over-IP system created by Axia Audio, a division of Telos Alliance. Its primary purpose is routing and distributing broadcast-quality audio in radio stations. The original Livewire standard was introduced in 2003 and has since been superseded by a second version, Livewire+. Livewire+ includes compatibility with the AES67 and Ravenna standards to allow interoperability with equipment from other manufacturers. Designed as a superset of Livewire functionality utilizing common protocols and formats, Livewire+ is available as an open standard through Axia's Livewire+ Partner Program. Livewire+ provides flexible routing and transport of audio streams using multicast networking, with the ability to connect any input to any output (known as "anywhere-to-anywhere routing"). Distribution utilises standard IP and Ethernet over twisted pair Twisted pair cabling is a type of wiring used for communications in which two conductors of a single circuit are twisted t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Livewire+
Livewire(s), Live Wire(s), The Live Wire or Live Wired may refer to: * Live wire (electricity), a wire with a flow of electrical current Computers * Livewire (networking), a digital audio networking technology * LiveWire Professional, computer software for stock market analysis * Livewire Segmentation Technique, an image segmentation technique * LiveWire, a server-side JavaScript environment by Netscape Entertainment Comics * Live Wire (comics), several comics-related characters and series including: ** Live Wire (DC Comics) or Garth Ranzz, more commonly known as Lightning Lad, a member of the Legion of Super-Heroes ** Live Wire (Marvel Comics), a supervillain in the Marvel Comics universe ** Livewire (DC Comics), a former supervillainess, now ally of Superman ** Livewire (Valiant Comics) or Amanda McKee, a superhero in the Valiant Comics Universe ** ''Livewires'' (comics), a Marvel Comics series Film * ''The Live Wire'' (1917 film), a British lost silent film starring Ronal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telos Alliance
Telos Alliance is an American corporation manufacturing audio products primarily for broadcast stations. Headquartered in Cleveland, Ohio, USA, the company is divided into six divisions: * Telos Systems manufactures talkshow systems, IP audio codecs and transceivers, as well as streaming audio encoders. * Omnia Audio makes audio processors for AM, FM, HD Radio, and Internet audio streaming applications. * Axia Audio builds mixing consoles and audio distribution systems based on Livewire IP networking, an audio over Ethernet protocol. * Linear Acoustic, whose product line includes TV loudness controls, metering and monitoring devices, along with mixing and metadata tools. * 25-Seven Systems specializes in broadcast delays, time management and processing products. * Minnetonka Audio Software delivers software-based audio automation to media production infrastructures. History and founder Telos Alliance began as Telos Systems, a part-time project founded in 1985 by radio station ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Millisecond
A millisecond (from '' milli-'' and second; symbol: ms) is a unit of time in the International System of Units (SI) equal to one thousandth (0.001 or 10−3 or 1/1000) of a second and to 1000 microseconds. A unit of 10 milliseconds may be called a centisecond, and one of 100 milliseconds a decisecond, but these names are rarely used. To help compare orders of magnitude of different times, this page lists times between 10−3 seconds and 100 seconds (1 millisecond and one second). ''See also'' times of other orders of magnitude. Examples The Apollo Guidance Computer used metric units internally, with centiseconds used for time calculation and measurement. *1 millisecond (1 ms) – cycle time for frequency 1 kHz; duration of light for typical photo flash strobe; time taken for sound wave to travel about 34 cm; repetition interval of GPS C/A PN code *1 millisecond - time taken for light to travel 204.19 km in a single mode fiber optic cable for a wavelength o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hertz
The hertz (symbol: Hz) is the unit of frequency in the International System of Units (SI), equivalent to one event (or cycle) per second. The hertz is an SI derived unit whose expression in terms of SI base units is s−1, meaning that one hertz is the reciprocal of one second. It is named after Heinrich Rudolf Hertz (1857–1894), the first person to provide conclusive proof of the existence of electromagnetic waves. Hertz are commonly expressed in multiples: kilohertz (kHz), megahertz (MHz), gigahertz (GHz), terahertz (THz). Some of the unit's most common uses are in the description of periodic waveforms and musical tones, particularly those used in radio- and audio-related applications. It is also used to describe the clock speeds at which computers and other electronics are driven. The units are sometimes also used as a representation of the energy of a photon, via the Planck relation ''E'' = ''hν'', where ''E'' is the photon's energy, ''ν'' is its freq ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Audio Over IP
Audio over IP (AoIP) is the distribution of digital audio across an IP network such as the Internet. It is used increasingly to provide high-quality audio feeds over long distances. The application is also known as audio contribution over IP (ACIP) in reference to the programming contributions made by field reporters and remote events. Audio quality and latency are key issues for contribution links. In the past, these links have made use of ISDN services but these have become increasingly difficult or expensive to obtain. Many proprietary systems came into existence for transporting high-quality audio over IP based on Transmission Control Protocol (TCP), User Datagram Protocol (UDP) or Real-time Transport Protocol (RTP). An interoperable standard for audio over IP using RTP has been published by the European Broadcasting Union (EBU). Within a single building or music venue, audio over Ethernet is more likely to be used instead, avoiding audio data compression and, in some case ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio Stations
Radio broadcasting is transmission of audio signal, audio (sound), sometimes with related metadata, by radio waves to radio receivers belonging to a public audience. In terrestrial radio broadcasting the radio waves are broadcast by a land-based radio station, while in satellite radio the radio waves are broadcast by a satellite in Earth orbit. To receive the content the listener must have a Radio receiver, broadcast radio receiver (''radio''). Stations are often affiliated with a radio network which provides content in a common radio format, either in broadcast syndication or simulcast or both. Radio stations broadcast with several different types of modulation: AM radio stations transmit in AM (amplitude modulation), FM radio stations transmit in FM (frequency modulation), which are older analog audio standards, while newer digital radio stations transmit in several digital audio standards: DAB (digital audio broadcasting), HD radio, DRM (Digital Radio Mondiale). Tele ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AES67
AES67 is a technical standard for audio over IP and audio over Ethernet (AoE) interoperability. The standard was developed by the Audio Engineering Society and first published in September 2013. It is a layer 3 protocol suite based on existing standards and is designed to allow interoperability between various IP-based audio networking systems such as RAVENNA, Livewire, Q-LAN and Dante. AES67 promises interoperability between previously competing networked audio systems and long-term network interoperation between systems. It also provides interoperability with layer 2 technologies, like Audio Video Bridging (AVB). Since its publication, AES67 has been implemented independently by several manufacturers and adopted by many others. Overview AES67 defines requirements for synchronizing clocks, setting QoS priorities for media traffic, and initiating media streams with standard protocols from the Internet protocol suite. AES67 also defines audio sample format and sample rate, su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ravenna (networking)
Ravenna is a technology for real-time transport of audio and other media data over IP networks. Ravenna was introduced on September 10, 2010 at the International Broadcasting Convention in Amsterdam. Ravenna can operate on most existing network infrastructures using standard networking technology. Performance and capacity scale with network performance. Ravenna is designed to match broadcasters' requirements for low latency, full signal transparency and high reliability. Fields of application include in-house signal distribution for broadcasting houses and other fixed installations, flexible setups at venues and live events, outside broadcasting support, and inter-studio links across wide area network links and production facilities. Standard protocols Ravenna is an IP-based solution. As such it is based on protocol levels at or above layer 3 of the OSI reference model. All protocols and mechanisms used within Ravenna are based on widely deployed and established standards: * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multicast
In computer networking, multicast is group communication where data transmission is addressed to a group of destination computers simultaneously. Multicast can be one-to-many or many-to-many distribution. Multicast should not be confused with physical layer point-to-multipoint communication. Group communication may either be application layer multicast or network-assisted multicast, where the latter makes it possible for the source to efficiently send to the group in a single transmission. Copies are automatically created in other network elements, such as routers, switches and cellular network base stations, but only to network segments that currently contain members of the group. Network assisted multicast may be implemented at the data link layer using one-to-many addressing and switching such as Ethernet multicast addressing, Asynchronous Transfer Mode (ATM), point-to-multipoint virtual circuits (P2MP) or InfiniBand multicast. Network-assisted multicast may also be impl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Internet Protocol
The Internet Protocol (IP) is the network layer communications protocol in the Internet protocol suite for relaying datagrams across network boundaries. Its routing function enables internetworking, and essentially establishes the Internet. IP has the task of delivering packets from the source host to the destination host solely based on the IP addresses in the packet headers. For this purpose, IP defines packet structures that encapsulate the data to be delivered. It also defines addressing methods that are used to label the datagram with source and destination information. IP was the connectionless datagram service in the original Transmission Control Program introduced by Vint Cerf and Bob Kahn in 1974, which was complemented by a connection-oriented service that became the basis for the Transmission Control Protocol (TCP). The Internet protocol suite is therefore often referred to as ''TCP/IP''. The first major version of IP, Internet Protocol Version 4 (IPv4), is the do ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ethernet
Ethernet () is a family of wired computer networking technologies commonly used in local area networks (LAN), metropolitan area networks (MAN) and wide area networks (WAN). It was commercially introduced in 1980 and first standardized in 1983 as IEEE 802.3. Ethernet has since been refined to support higher bit rates, a greater number of nodes, and longer link distances, but retains much backward compatibility. Over time, Ethernet has largely replaced competing wired LAN technologies such as Token Ring, FDDI and ARCNET. The original 10BASE5 Ethernet uses coaxial cable as a shared medium, while the newer Ethernet variants use twisted pair and fiber optic links in conjunction with switches. Over the course of its history, Ethernet data transfer rates have been increased from the original to the latest , with rates up to under development. The Ethernet standards include several wiring and signaling variants of the OSI physical layer. Systems communicating over Ethernet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Category 5 Cable
Category 5 cable (Cat 5) is a twisted pair cable for computer networks. Since 2001, the variant commonly in use is the Category 5e specification (Cat 5e). The cable standard provides performance of up to 100 MHz and is suitable for most varieties of Ethernet over twisted pair up to 2.5GBASE-T but more commonly runs at (Gigabit Ethernet) speeds. Cat 5 is also used to carry other signals such as telephone and video. This cable is commonly connected using punch-down blocks and modular connectors. Most Category 5 cables are unshielded, relying on the balanced line twisted pair design and differential signaling for noise rejection. Standards The specification for category 5 cable is defined in ISO/IEC 11801, IEC 61156 and EN 50173. The specification for category 5 cable was defined in ANSI/ TIA/EIA-568-A, with clarification in TSB-95. These documents specify performance characteristics and test requirements for frequencies up t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
