January
27
Chapter 14: Switching/Instantaneous Editing Key Term Test
Key Term Test Friday 1/30
| 1. | auto-transition | An electronic device that functions like a fader bar. | |
| 2. | bus | A row of buttons on the switcher. | |
| 3. | character generator (C.G.) | A dedicated computer system that electronically produces letters, numbers, and simple graphic images for video display. Any desktop computer can become a C.G. with the appropriate software. | |
| 4. | chroma keying | An effect that uses color (usually blue or green) for the backdrop, which is replaced by the background image during a key. | |
| 5. | delegation controls | Buttons on the switcher that assign specific functions to a bus. | |
| 6. | digital video effects (DVE) | Visual effects generated by a computer or digital effects equipment in the switcher. | |
| 7. | downstream keyer (DSK) | A control that allows a title to be keyed (cut in) over the picture (line-out signal) as it leaves the switcher. | |
| 8. | effects buses | Program and preview buses on the switcher, assigned to perform effects transitions. | |
| 9. | fader bar | A lever on the switcher that activates preset transitions, such as dissolves, fades, and wipes, at different speeds. It is also used to create superimpositions. Also called T-bar. | |
| 10. | genelock | The synchronization of two or more video sources (such as cameras and video recorders) or origination sources (such as studio and remote) to prevent picture breakup during switching. A house sync will synchronize all video sources in a studio. | |
| 11. | key | An electronic effect. Keying means cutting with an electronic signal one image (usually lettering) into a different back-ground image. | |
| 12. | key bus | A row of buttons on the switcher, used to select the video source to be inserted into a background image. | |
| 13. | key-level control | A switcher control that adjusts the key signal so that the title to be keyed appears sharp and clear. Also called clip control and clipper. | |
| 14. | layering | Combining two or more key effects for a more complex effect. | |
| 15. | M/E bus | Short for mix/effects bus. A row of buttons on the switcher that can serve a mix or an effects function. | |
| 16. | matte key | A keyed (electronically cut-in) title whose letters are filled with shades of gray or a specific color. | |
| 17. | mix bus | Rows of buttons on the switcher that permit the mixing of video sources, as in a dissolve or super. |
| 18. | preview/preset bus | Rows of buttons on the switcher used to select the upcoming video (preset function) and route it to the preview monitor (preview function) independently of the line-out video. Also called present/background bus. | |
| 19. | program bus | The bus on a switcher whose inputs are directly switched to the line-out. Allows cuts-only switching. Also called direct bus and program/background bus. | |
| 20. | special-effects generator (SEG) | An image generator built into the switcher the produces special-effects wipe patterns and keys. | |
| 21. | super | Short for superimposition. A double exposure of two images, with the top one letting the bottom one show through. | |
| 22. | switching | A change from one video source to another during a show or show segment with the aid of a switcher. Also called instantaneous editing. | |
| 23. | wipe | Transition in which a second image, framed in some geometric shape, gradually replaces all or part of the first image. |