Pioneer HTD-540DV Operating Instructions - Page 84

12 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. Bonus Group An 'extra' group on some DVD-Audio discs (DVD-Audio only) that requires a key number to access. Browsable A feature of some DVD-Audio discs in pictures which the user can browse still pictures on (DVD-Audio only) the disc as the audio is played. Digital audio Indirect representation of sound using numbers. See also Sampling frequency and Analog audio. Dolby Digital A multichannel 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 copy protection DRM (digital rights management) copy protection is a technology designed to prevent unauthorized copying by restricting playback, etc. of material on devices other than the PC 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 multichannel 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). Dynamic range The difference between the quietest and loudest sounds possible in an audio signal. EXIF A file format developed by Fuji Photo Film (Exchangeable for digital still cameras. Digital cameras Image File) 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 JPEG International standard for the volume and file structure of CD-ROM discs. 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 file extension ".mp3". MPEG audio An audio format used on Video CDs and some DVD discs. MPEG video A video 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 71 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. Super Audio CD (SACD) A high quality audio disc format that can accommodate high sampling rate stereo and multichannel audio, as well as conventional CD audio all on the same disc. Manufactured under license from Dolby Laboratories."Dolby", "Pro Logic" and the doubleD symbol are trademarks of Dolby Laboratories. "DTS" and "DTS Digital Surround" are registered trademarks of Digital Theater Systems, Inc. 84 En