Appendix B - Glossary
Amplifier | A stereo component that outputs to speakers, and increases the |
| gain or level of an audio signal. An amplifier doesn’t typically |
| include a radio. |
Anamorphic views | Also referred to as Enhanced for Widescreen, or Enhanced for |
| 16:9. The process that horizontally shrinks a 16:9 image into a |
| 4:3 space to convert images between widescreen and typical |
| television image aspect ratio. Used on many DVDs. |
Aspect ratio | The ratio of image width to image height. Common motion- |
| picture ratios are 1.85:1 and 2.35:1. Television screens are |
| usually 1.33:1 (also known as 4:3). HDTV is 1.78:1, or 16:9. |
A/V switch | A device with several audio and video source inputs that sends a |
| selected audio/video source input signal to an output device like |
| speakers or a TV. |
DLP® (Digital Light Processing)
DVD recorder (DVR)
Projector screen technology that relies on using individually controlled tiny mirrors (micro mirrors) to produce an image. Developed originally by Texas Instruments.
A standalone unit that resembles and functions very much like a VCR. Like a VCR, DVD recorders all have AV source inputs, as well it can record TV shows.
HDTV (High Definition
Television)
Light controller
NTSC (National
Television System(s)
Committee)
The
A device that is connected to a set of lights and allows the lights to be powered or dimmed remotely.
A single unit that is some combination of the functionality of a DVD, VCR, radio, and amplifier.
The standard video broadcast format used in North America.
36
Output Device
PAL (Phase Alternating
Line)
A device that produces the sound or picture, for example, a TV or speakers.
A video format that is used in the UK, and parts of Europe and Asia.
