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Live coverage of news events in technology and practice - live, studio, mixer - Radio and TV Indust by ayay wang
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Live coverage of news events in technology and practice - live, studio, mixer - Radio and TV Indust by AYAY WANG
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| Article Posted: 06/14/2010 |
| Article Views: 122 |
| Articles Written: 2282 - MORE ARTICLES FROM THIS AUTHOR |
| Word Count: 997 |
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Live coverage of news events in technology and practice - live, studio, mixer - Radio and TV Indust |
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Business,Business News,Business Opportunities
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Of: television, Qingdao, Shandong Wang Jun, Hu Weigang Li Jianjie
Level studio live with live news program different from the live broadcast of news events reported more use of broadcast vehicles, satellite, microwave transmission machines and other technology tools in the continuous news spots in the progress of live news events different processes, more prominent studio and live events as well as the interaction between the audience, this live (LIVE), although not in the news comments or views on the role of the audience, but because of its immediacy, suspense, sex, live sex and so directly affect the news value of the realization and multiplication, and therefore, reporting live news events has become the CCTV and local TV stations and programs to increase program forms an important means of ratings.
2005 4 2, Qingdao TV news channel in collaboration with the central station, jointly completed the first global oceanic scientific expedition on the 1st live coverage of the 65-minute program three times for the CCTV News Channel studio, "Ocean One for the first time live coverage of the global scientific investigation "(hereinafter referred to as live coverage of the ocean) to provide on-site signals, the whole process of reporting the incident; April 20, Qingdao TV for the first time in the" 60 minutes today, "studio live part in the multi- second spots reported "close as fish - love rescue" operation of the live reports (hereinafter referred to as live coverage of relief Heart), both live and reporting activities, have made very good television ratings, through practical experience, we conclude in the News The live broadcast coverage of several key problems encountered and solutions.
An ongoing call Live and studio news and events to achieve the continuous call is completed between the live coverage of key technologies. In the "Live Coverage of the ocean," the scene is always set up a telephone connected with the CCTV studio, broadcast studio and the director to switch cars to communicate by telephone and then by the two directors, through their call system to inform the host camera of staff, communication links and more prone to mistakes. In order to improve this shortcoming, in the "Live Coverage of love rescue" system, in the broadcast trucks and Qingdao TV studio units each using a telephone coupler, through the telecommunications network to realize the process in the event live, participate in live on-site chair people, guests, live video, studio host and so the system can talk directly to the site director to receive (or the studio director) of the directive, so cohesive live coverage of news events. The realization scheme shown in Figure 1.
In the studio, we use the mixer grouping (GEOUPS) and auxiliary (AUX) output fader before (PRE) function, the establishment of a mixer program output does not affect the auxiliary call channel by the director of instruction to achieve studio this channel to connect to SPH10 phone coupler, then the call with the studio system connection, the broadcast truck part, we use AC-10 phone coupler, wireless phone sub-stations, etc., to achieve studio director of instruction delivered directly to the site host, guests and camera and other program participants.
Two cameras using microwave Order to accurately capture the ocean at the whole process of scientific exploration ship set sail, we sail boat expedition ship and set up a station on the microwave camera, thanks to the transmission of analog microwave carrier signals, during the live transmission signals to the Taiwan carrier is also within the analog microwave, microwave receiver position has a great influence on the signal, will also broadcast vehicle systems have been affected, as shown in Figure 2.
which were two microwave receiver position and orientation of the camera, to send signals to Taiwan for the microwave transmitter location and the direction of transmission, as analog microwave transmission or reception the direction angle larger microwave camera transmitter is turned off, sending signals to Taiwan for the interference signal will be transmitted to the microwave No. microwave receiver, so the car in broadcast, microwave camera is displayed on the monitor inside the station transmitted signal, once the program switcher output options for microwave camera, the system will form the feedback, the output is not normal.
Three FA-330P broadcast time base corrector in the application process
Car in the studio or broadcast system, when the source signal contains all non-synchronous television signals, microwave or other systems external signal, time base corrector (also known as frame synchronization?? - Fed up, Dissolve, assigned to special effects such as shown in Figure 3.
In the broadcast, we use a flexible frame synchronous machine to achieve the following purposes, first, in the "Ocean One Live Coverage of the" system set up, we also will frame Used for synchronous machine for decoding, the microwave analog camera output composite signal is converted to analog component signals into the broadcast after the vehicle system. Second, the use of frame synchronization machine frame (field) storage, in "Love Live Coverage of relief," the system, we use it to store a background image for on-site monitor signal, you can save a video.
Live news coverage of events in the process of plan preparation is very important, for example broadcast system in the camera car maintenance, power backup, and coordination among the staff, but the detailed understanding of equipment principles and functions, flexible device built using the system tend to play a multiplier effect, so long as to do this, as the equipment, the general condition of the city television stations broadcast live news coverage of events there will also be good practice to play. I am a professional editor from Chinese Manufacturers, and my work is to promote a free online trade platform. http://www.chinaqualitycrafts.com/ contain a great deal of information about embroidery floss crafts , eyelet cotton fabric welcome to visit!
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