Streaming media

Streaming media is the method by which multimedia data is delivered through a network for playback using a digital media player or media player software. Media is transferred in a stream of packets from a server to a client and is rendered in real-time or near real-time; this contrasts with file downloading, a process in which the end-user obtains an entire media file before consuming the content. Streaming is more commonly used for video on demand, streaming television, and music streaming services over the Internet. While streaming is most commonly associated with multimedia from a remote server over the Internet, it also includes offline multimedia between devices on a local area network. For example, using DLNA and a home server, or in a personal area network between two devices using Bluetooth (which uses radio waves rather than IP). Online streaming was initially popularized by RealNetworks and Microsoft in the 1990s and has since grown to become the globally most popular method for consuming music and videos, with numerous competing subscription services being offered since the 2010s. Audio streaming to wireless speakers, often using Bluetooth, is another use that has become prevalent during that decade. Live streaming is the real-time delivery of content during production, much as live television broadcasts content via linear and cable channels. Distinguishing delivery methods from the media applies specifically to, as most of the traditional media delivery systems are either inherently streaming (e.g., radio, television) or inherently non-streaming (e.g., books, videotapes, audio CDs). The term "streaming media" can apply to media other than video and audio, such as live closed captioning and real-time text, which are all considered "streaming text".

Etymology The term "streaming" was first used for tape drives manufactured by Data Electronics Inc. that were meant to slowly ramp up and run for the entire track; slower ramp times lowered drive costs. "Streaming" was applied in the early 1990s as a better description for video on demand and later live video on IP networks. It was first done by Starlight Networks for video streaming and Real Networks for audio streaming. Such video had previously been referred to by the misnomer "store and forward video."

Precursors Beginning in 1881, Théâtrophone enabled subscribers to listen to opera and theatre performances over telephone lines. This operated until 1932. The Telharmonium was patented in 1897. The concept of media streaming eventually came to America. The Tel-musici service operated in Delaware from 1909 to 1914. In the early 1920s, George Owen Squier was granted patents for a system for the transmission and distribution of signals over electrical lines, which was the technical basis for what later became Muzak, a technology for streaming continuous music to commercial customers without the use of radio. The Telephone Music Service, a live jukebox service, began in 1929 and continued until 1997. The clientele eventually included 120 bars and restaurants in the Pittsburgh area. A tavern customer would deposit money in the jukebox, use a telephone on top of the jukebox, and ask the operator to play a song. The operator would find the record in the studio library of more than 100,000 records, put it on a turntable, and the music would be piped over the telephone line to play in the tavern. The music media began as 78s, 33s and 45s, played on the six turntables they monitored. CDs and tapes were incorporated in later years. The business had a succession of owners, notably Bill Purse, his daughter Helen Reutzel, and finally Dotti White. The revenue stream for each quarter was split between 60% for the music service and 40% for the tavern owner. This business model eventually became unsustainable due to city permits and the cost of setting up these telephone lines.

History

Early development

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