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Jeonghyeok kim

on 29 November 2012

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Transcript of broadcasting

what is broadcasting? the distribution of audio and video content to a dispersed audience via any audio or visual mass communications medium, but usually one using electromagnetic radiation (radio waves). The receiving parties may include the general public or a relatively large subset thereof. Broadcasting has been used for purposes of private recreation, non-commercial exchange of messages, experimentation, self-training, and emergency communication such as amateur (ham) radio and amateur television (ATV) in addition to commercial purposes like popular radio or TV stations with advertisements. Broadcasting is Types of electronic broadcasting Telephone broadcasting Telephone broadcasting (1881–1932): the earliest form of electronic broadcasting. Usually Telephone broadcasting using in large Europe city. These telephone-based subscription services were the first examples of electrical/electronic broadcasting and offered a wide variety of programming. Radio Broadcasting Radio broadcasting (experimentally from 1906, commercially from 1920): radio broadcasting is an audio broadcasting service, broadcast through the air as radio waves from a transmitter to a radio antenna and, thus, to a receiver. Stations can be linked in radio networks to broadcast common radio programs, either in broadcast syndication, simulcast or subchannels. Television broadcasting broadcasting (telecast), experimentally from 1925, commercial television from the 1930s: this television programming medium was long-awaited by the general public and rapidly rose to compete with its older radio-broadcasting sibling. WebCasting video/television (from circa 1993) and audio/radio (from circa 1994) streams: offers a mix of traditional radio and television station broadcast programming with dedicated internet radio-webcast programming. grooveshark Public broadcasting Public broadcasting includes radio, television and other electronic media outlets whose primary mission is public service. Public broadcasters receive funding from diverse sources including license fees, individual contributions, public financing and commercial financing. In the world their are many public broadcasting like British's BBC , Japan's NHK, Australia's ABC are public broadcasting. The way to Broadcasting There is three ways to broadcasting
First is live program, second one is prerecording on video tape, the last one is prerecording on film. Stages in a TV broadcast live program live program is do broadcasting
without record before, so it has
risk like say different thing during show prerecording on video tape prerecording on video tape is record the show
before do broadcasting, so it can show us perfect
show. live prerecording on film live program is do broadcasting
without record before, so it has
risk like say different thing during show There are four main stages which are production, transmission, reception, and display. programmes, transmission sends the programmes out, signal coming through the air, and display shows the picture on Production plans, and makes reception picks up the the TV screen. production transmission reception display There are several ways to reach picture, and sound to TV screen . video tape machine Video tape machine's electronic signals came from the video tape, and it goes through the control room by cables. TV camera Takes video of person, and screen. There's light signal on TV camera, and it turns on the light during the live scene. Sends it down to the control room by cable. TV studio People interview, sing a song, play instrument, or do other programmes in this place. microphone Person has long stick, and at the end of long stick, there's mike at the end of a stick. It converts sound while person interviews on a stage, and it sends to the control room by cable. telecine machine machine which records picture of person, and scene, and records sound what person has interviewed on TV studio. Sends to the control room by cable. control room There are pictures, and sounds sent by four cables except from
TV studio. Cut mistake parts before being sent out of the transmitting station. transmitting station With radio waves, transmitter makes sound, and picture together. radio waves 1 Sent picture, and sound by transmitting station, and send those to the air, and separate at the air. Send from the top of
radio waves. radio waves 2 Distance has limited. TV aerial TV set It carries sound, and picture from the air which is carried by radio waves, and it goes through TV by cable. One picks another transmitter to send picture, and sound again. Sound, and picture comes from TV
set by electronic signal. Transmitter Thank you
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