Control Room: Basics
Control Room: Basics MC351-01
Popular in Basic Video and Film Production
Popular in Journalism and Mass Communications
This 4 page Class Notes was uploaded by Alyssa Notetaker on Tuesday September 8, 2015. The Class Notes belongs to MC351-01 at Southeast Missouri State University taught by Frederick Jones in Summer 2015. Since its upload, it has received 42 views. For similar materials see Basic Video and Film Production in Journalism and Mass Communications at Southeast Missouri State University.
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Date Created: 09/08/15
CONTROL ROOM BASICS VIDEO IMAGE Resolution Number of lines that make up the TV picture Common resolutions are 720 and 1080 lines Interlaced scanning Odd numbered lines scanned rst Even numbered lines scanned next Progressive scanning Lines scanned in order VIDEO IMAGE Frame An individual video image An interlaced image is comprised of two elds Frame rate Number of frames in one second 24 frames per second is standard for lm 30 frames per second is standard for video TELEVISION STANDARDS quotNTSCquot is the analog TV standard in the US 525 lines of resolution and 30 frames per second 43 aspect ratio quotATSCquot is the digital TV standard in the US Supports 352 to 1920 lines of resolution 169 aspect ratio also compatible with 43 Supports 24 to 60 frames per second COLOR A39ITRIBUTES Luminance or brightness Black and white portion of the video image Chrominance Hue a particular color blue yellow etc Saturation color strength MOIRE PATTERN TIME CODE Camera places unique time address on each frame Drop frame vs nondrop frame time code Drop frame is used in analog broadcast TV because it is more accurate NTSC video is actually 2997 frames per second Drop frame is still used because some programs are simulcast in analog CONTROL ROOM SWITCHERS Basic Video and Film Production FaH2015 SWITCHER BUS A bus is a row of buttons Each button represents a different video source Cameras VTRs Graphics PROGRAM BUS The most important bus on the switcher Button selected on program bus is being recorded or broadcast lmage will appear on the quotprogram monitorquot PREVIEW BUS Also known as a quotpreset busquot Has the same source buttons as program bus Selections aren t recorded or broadcast Only visible to production crew Often used to prepare for a visual transition Image is sent to the preview monitor FADER BAR Also known as a quotmix leverquot Allows technical director to switch between program and preview sources Fader bar is often used to control visual transitions VISUAL TRANSITIONS Fade Fade in from black picture gradually appears Fade out from picture image gradually goes to black Dissolve One image fades in while another fades out Wipe Pattern transition from one image to another OTHER CONTROLS Autotransition Automatically executes a timed dissolve or wipe Program fade Automatically executes a timed fade Chroma key Used for greenscreen effects Green is replaced by another video source CONTROL ROOM VTRs Basic Video and Film Production FaH2015 BASIC CONTROLS Remote control Allows videotape recorder to be controlled by another machine Most buttons on the VTR will not function Local control Buttons on the VTR will function BASIC CONTROLS Shuttle control Quick forward or reverse scanning of video Jog control Slow framebyframe scanning of video AUDIO CONTROLS VU meter Used to monitor incoming audio levels Keep levels at 2 db or 20 db on a digital meter Audio control knob Adjusts level of incoming audio Controls audio for two audio channels stereo CONTROL ROOM CONNECTORS Basic Video and Film Production FaH2015 VIDEO CONNECTORS BNC VIDEO CONNECTORS SVIDEO AUDIO CONNECTORS XLR AUDIO CONNECTORS 14quot Phone AUDIO CONNECTORS 18quot Mini Plug AUDIOVIDEO CONNECTORS RCA or Phono
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