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| Aspect ratio | The shape of an image or frame expressed as width-to-height. |
| Letterbox | A technique used to display a widescreen video image on a standard television display. |
| Composite Video | A video signal that combines the brightness and the color video information into one signal. |
| Component Video | A video signal that separates the video signal into three separate signals (and three separate wires) to avoid any quality loss from mixing signals. |
| Codec | A video or audio compression component that can both encode and decode files. |
| FireWire | Cable used for connecting DV camcorders and external video editing hard drives to computers. |
| RGB | Full-color video signal. |
| NTSC video | A television video standard with a resolution of 720x480 and 30 frames per second. |
| Field | Alternating odd and even lines of pixel information that combine to form a full frame in interlaced video. |
| Frames | The individual video images that make up a moving sequence. |
| Frame Rate | Playback speed as determined in frames per second (fps). |
| Progressive Video | Video consisting of complete frames. |
| Interlaced Video | Video consisting of alternating lines of resolution taken from two separate fields captured at slightly different times. |
| Freeze Frame | A technique in which a particular frame of video is held onscreen. Sometimes the audio portion of the scene continues playing. |
| Timecode | An exact time used to identify a specific frame in a video. |
| Pixel | “The smallest visible unit of measurement on a computer screen; a single tiny dot of light that grouped together create a recognizable image.” |
| Render | The process of creating a series of computer-generated images or a self-contained movie based on a user's working timeline. |
| Resolution | The dimensions of an image, in pixels, typically expressed as the number of horizontal pixels across and the number of vertical pixels down. |
| Timeline | An interface that allows you to assemble a collection of clips into a production with multiple overlapping tracks. |
| Capture | To digitize, or import and convert, video and/or audio into digital format on your computer from external devices, such as a camcorder or VCR. |
| Transition | A visual effect to segue from the end of one clip or scene and the start of the next. |
| Cut | To switch instantly from one clip to another. |
| In point | A placeholder used to mark a specific timecode as the starting point of a segment in a longer sequence. |
| Out point | A placeholder used to mark a specific timecode as the end point of a segment in a longer sequence. |
| Insert edit | An editing technique that places new video in the timeline without replacing existing video but creates an overall longer edit. |
| Overwrite edit | An edit technique that replaces existing video in the timeline with new video. |
| White balance | A camera setting that adjusts for color temperatures of different light sources. |
| Iris | A camera setting that controls the amount of light that is allowed through the lens. |
| USB | Cable used to connect media storage devices to the computer. |
| Video Standard | The resolution, frame rate, aspect ratio, and compression that defines a specific video signal. |
| Key | The primary light source in a scene. |
| Fill | The secondary light source in a scene used to minimize harsh shadows. |
| Shotgun | A highly directional microphone, usually with a long, tubular body. |
| Lavaliere | Small clip-on microphone. |
| Pre-production | The planning process before video is shot. |
| Production | The process of shooting video. |
| Post production | The editing process after the video footage has been shot. |
| Export | To save your production to a file or to an external video device |
| Storyboard | In video production, a series of cartoonlike panels drawn to describe a movie, shot by shot. |
| Clip | A short piece of video and/or audio, often containing an individual scene. |
| Scratch disk | A dedicated work area on hard disk used for storing captured video. |
