Media broadcast is traditionally the mass communication of programming from a single source to a TV or radio. The transmission or media transport of audio video signals is conducted over the air by satellite or optically by cable.
The transition from analogue to digital media broadcast began in the mid-1990s and was prefaced by a shift within the broadcast production facility from analogue component video to Serial Digital Interface (SDI). The aim was to accommodate improved viewing qualities such as High Definition and to cut down on the cost of cabling. The fundamental processes of programme production and distribution did not change.
Similar forces are now at work across the media broadcast industry as satellite and cable is joined by internet protocol (IP) as a form of media transport. Internet distribution, which is also known as over the top (OTT), is on course to be the dominant form of media broadcast worldwide. At the same time, IP is replacing SDI within the facility and for the contribution of media to the production hub.
The need for greater agility to support ultra-high resolution video, better connectivity of infrastructure, and growing OTT demand is driving this evolution at pace. For the first time, the production and the distribution of broadcast programming will rely on the same underlying (IP-based) technology.