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.
Streaming media is multimedia for playback using an offline or online media player. Technically, the stream is delivered and consumed in a continuous manner by a client, with little or no intermediate storage in network elements. Streaming refers to the delivery method of content rather than the content itself.
Digital radio is the use of digital technology to transmit or receive across the radio spectrum. Digital transmission by radio waves includes digital broadcasting, and especially digital audio radio services.
Mbone was an experimental backbone and virtual network built on top of the Internet for carrying IP multicast traffic on the Internet. It was developed in the early 1990s and required specialized hardware and software. Since the operators of most Internet routers have disabled IP multicast due to concerns regarding bandwidth tracking and billing, the Mbone was created to connect multicast-capable networks over the existing Internet infrastructure.
Simulcast is the broadcasting of programs or events across more than one resolution, bitrate or medium, or more than one service on the same medium, at exactly the same time. For example, Absolute Radio is simulcast on both AM and on satellite radio. Likewise, the BBC's Prom concerts were formerly simulcast on both BBC Radio 3 and BBC Television. Another application is the transmission of the original-language soundtrack of movies or TV series over local or Internet radio, with the television broadcast having been dubbed into a local language.
A webcast is a media presentation distributed over the Internet using streaming media technology to distribute a single content source to many simultaneous listeners/viewers. A webcast may either be distributed live or on demand. Essentially, webcasting is "broadcasting" over the Internet.
Internet Protocol television (IPTV) is the delivery of television content over Internet Protocol (IP) networks. This is in contrast to delivery through traditional terrestrial, satellite, and cable television formats. Unlike downloaded media, IPTV offers the ability to stream the source media continuously. As a result, a client media player can begin playing the content almost immediately. This is known as streaming media.
Datacasting is the broadcasting of data over a wide area via radio waves. It most often refers to supplemental information sent by television stations along with digital terrestrial television (DTT), but may also be applied to digital signals on analog TV or radio. It generally does not apply to data inherent to the medium, such as PSIP data that defines virtual channels for DTT or direct broadcast satellite system, or to things like cable modems or satellite modems, which use a completely separate channel for data.
Web conferencing is used as an umbrella term for various types of online conferencing and collaborative services including webinars, webcasts, and web meetings. Sometimes it may be used also in the more narrow sense of the peer-level web meeting context, in an attempt to disambiguate it from the other types known as collaborative sessions. The terminology related to these technologies is exact and agreed relying on the standards for web conferencing but specific organizations practices in usage exist to provide also term usage reference.
Visual radio is a generic term for adding visuals to audio radio broadcasts. Visual Radio is also a trademark for a Nokia product which delivers interactive FM radio over a data connection.
Phil Karn is a retired American engineer from Lutherville, Maryland.
Podcasts, previously known as "audioblogs", have roots dating back to the 1980s. With the advent of broadband Internet access and portable digital audio playback devices such as the iPod, podcasting began to catch hold in late 2004. Today there are more than 115,000 English-language podcasts available on the Internet, and dozens of websites available for distribution at little or no cost to the producer or listener.
RealTime was a Canadian radio show, which aired Saturday evenings on CBC Stereo from 1994 to 1997. Hosted by Leora Kornfeld, the series was a pop-culture magazine and interview show, and served as the CBC's first major foray into Internet broadcasting by integrating Internet technologies such as e-mail, IRC and audio streaming into its program format.
BlogTalkRadio is a web-based platform that allows podcasters and radio sites and talk show hosts to create live and on-demand talk format content for distribution on the web and podcast distribution channels. Its claim to fame is a web-based 'studio' that allows its content creators to host multi-participant broadcasts using a computer and a phone.
Radio is the technology of communicating using radio waves. Radio waves are electromagnetic waves of frequency between 3 hertz (Hz) and 300 gigahertz (GHz). They are generated by an electronic device called a transmitter connected to an antenna which radiates the waves. They are received by another antenna connected to a radio receiver. In addition to communication, radio is used for radar, radio navigation, remote control, remote sensing, and other applications.
Internet radio, also known as Online radio, web radio, net radio, streaming radio, e-radio and IP radio, is a digital audio service transmitted via the Internet. Broadcasting on the Internet is usually referred to as webcasting since it is not transmitted broadly through wireless means. It can either be used as a stand-alone device running through the Internet, or as a software running through a single computer.
Over-the-top (OTT) media service is a media service offered directly to viewers via the Internet. OTT bypasses cable, broadcast, and satellite television platforms—the media through which companies have traditionally acted as controllers or distributors of such content. The term is most synonymous with subscription-based video on demand (SVoD) services that offer access to film and television content. Such content may include shows and movies for which the OTT acquired rights from the content owner. Programming may also include original content produced specifically for the service.
KMIS is an American radio station licensed to serve the community of Portageville, Missouri. The station's broadcast license is held by Pollack Broadcasting Company.
WMMS-HD2 is a digital subchannel of WMMS, a commercial radio station licensed to Cleveland, Ohio, and features programming from the Black Information Network. Owned by iHeartMedia, WMMS-HD2 serves Greater Cleveland and surrounding Northeast Ohio. Using the proprietary technology HD Radio for its main digital transmission, WMMS-HD2 is rebroadcast over low-power analog Cleveland translator W256BT (99.1 FM), and streams online via iHeartRadio. WMMS-HD2's studios are located at the Six Six Eight Building in downtown Cleveland's Gateway District, while the WMMS-HD2 and W256BT transmitters reside in Seven Hills and Parma, respectively.
