Autodesk 64006-051108-9001 User Guide - Page 256

248 Glossary 4:4:4 Color - uncompressed video color that has no subsampling. 8-Bit - color depth that enables 256 colors to be displayed simultaneously. The colors that will be displayed at a given time are specified in the Palette. Many older computers only have 8-bit displays. Also called 256 Colors on the Mac OS. 16:9 Aspect Ratio - standard display aspect ratio of DVD-Video. When displayed on a normal television (which is 4:3), 16:9 material is letterboxed with black bars at the top and bottom of the screen. 16-Bit - color depth that enables thousands of colors to be displayed simultaneously. Also called Thousands of Colors on Mac OS, and High Color on Windows. 24-Bit - color depth that enables millions of colors to be displayed simultaneously. 24-bit images can have true photographic quality. Also called Millions of Colors on Mac OS and True Color on Windows. A/B Slider - in the Dynamic Preview window, the A/B Slider enables you to compare your processing/compression settings by moving it back and forth in real time. AAC - Advanced Audio Coding (AAC) is included in the MPEG-4 specification. AAC provides audio encoding that compresses more efficiently than older formats. The AAC codec in QuickTime 6 builds upon signal processing technology from Dolby Laboratories and adds true variable bit rate (VBR) audio encoding to QuickTime. Absolute Path - directions to a given folder, page, graphic, etc. as expressed in complete coordinates. For example, http://www.autodesk.com/media/Presentation.mov is an absolute path. Absolute paths are used to reference items that are on different servers from the page referring to them, such as movies located on a streaming server. Activation Key - a set of characters used to activate Cleaner. It can be found inside the front cover of this manual. The activation key applied may be found in the Cleaner System Configuration Log.