Pioneer DV 300 Operating Instructions - Page 40

08 Additional information Glossary Analog audio Direct representation of sound by an electrical signal. See also Digital audio. Aspect ratio The width of a TV screen relative to its height. Conventional TVs are 4:3; widescreen models are 16:9. Digital audio Indirect representation of sound using numbers. See also Sampling frequency and Analog audio. DivX DivX is a digital video format created by DivX, Inc. Dolby Digital A multi-channel audio encoding system developed by Dolby Laboratories that enables far more audio to be stored on a disc than PCM encoding. See also PCM (Pulse Code Modulation). DRM DRM (digital rights management) copy protection is a technology designed to prevent unauthorized copying by restricting playback, etc. of compressed audio files on devices other than the PC (or other recording equipment) used to record it. For detailed information, please see the instruction manuals or help files that came with your PC and/or software. DTS A multi-channel audio encoding system developed by Digital Theater Systems that enables far more audio to be stored on a disc than PCM encoding. See also PCM (Pulse Code Modulation). EXIF A file format developed by Fuji Photo (Exchangeable Film for digital still cameras. Digital Image File) cameras from various manufacturers use this compressed file format which carries date, time and thumbnail information, as well as the picture data. File extension A tag added to the end of a filename to indicate the type of file. For example, ".mp3" indicates an MP3 file. ISO 9660 format International standard for the volume and file structure of CD-ROM discs. JPEG A standard file format used for still images. JPEG files are identified by the file extension ".jpg". MP3 MP3 (MPEG1 audio layer 3) is a compressed stereo audio file format. Files are recognized by their file extension ".mp3". MPEG audio An audio format used on Video CDs and some DVD discs. PBC (PlayBack Control) A system of navigating a Video CD through on-screen menus recorded onto the disc. PCM (Pulse Code Modulation) Digital audio encoding system found on CDs. Good quality, but requires a lot of data compared to Dolby Digital, DTS and MPEG encoded audio. See also Digital audio. Progressive scan video All the lines that make up a video picture are updated in one pass (compared to interlace which takes two passes to update the whole picture). Regions These associate DVD-Video discs and players with particular areas of the world. See DVD-Video regions on page 39 for more information. Sampling frequency The rate at which sound is measured to be turned into digital audio data. The higher the rate, the better the sound quality. CD is 44.1 kHz; DVD can be up to 96 kHz. See also Digital audio. WMA WMA is short for Windows Media Audio and refers to an audio compression technology developed by Microsoft Corporation. Files are recognized by their file extension ".wma". 40 En