THE WHATIS.COM WORD-OF-THE-DAY August 14, 2002 HDCD ______________ TODAY'S SPONSOR: VeriSign - The Value of Trust
Secure all your Web servers now - with a proven 5-part strategy. The FREE Server Security Guide shows you how to deploy the latest encryption and authentication techniques, deliver transparent protection with the strongest security without disrupting users, and more. Get your FREE Guide now: http://WhatIs.com/r/0,,4981,00.htm?FreeGuide ______________ TODAY'S WORD: HDCD See our definition with hyperlinks at http://whatis.techtarget.com/definition/0,,sid9_gci843768,00.html HDCD (High Definition Compatible Digital) is a digital encoding and decoding process for compact disc and DVD audio recording. The HDCD process manages to encode 24 bits of audio information into a conventional CD 16-bit channel, yielding a greater dynamic range and a more true-to-life sound when decoded. HDCD was developed by Keith Johnson and Pflash Pflaumer between 1986 and 1991, and made publicly available in 1995. Johnson and Pflaumer went on to found Pacific Microsonics, which was later acquired by Microsoft. Since 1995, more than 5,000 HDCD recordings have been released and more than 175 of those have been nominated for GRAMMY awards. An article in Wired Magazine hailed HCDC technology as "the greatest single advance in digital reproduction to date." Audio chip manufacturers including Motorola, Sanyo, and Zoran have developed HDCD chips for audio products, such as CD and DVD players and receivers. HCDC-encoded media will play on machines that don't have the chip, and HDCD-equipped machines can play traditionally recorded media. Because the decoder chips include a high-precision digital filter, HDCD-equipped players will improve audio quality for even traditionally recorded CDs and DVDs. Conversely, because of the recording process, HDCD-encoded media will also sound better than traditionally CDs and DVDs on players that don't have the HDCD chip. Nevertheless, the best audio quality is yielded by HDCD-encoded media on an HDCD-equipped player. RELATED TERMS: digital http://whatis.techtarget.com/definition/0,,sid9_gci211948,00.html compact disc http://searchstorage.techtarget.com/sDefinition/0,,sid5_gci507072,00.html DVD http://whatis.techtarget.com/definition/0,,sid9_gci213923,00.html audio http://whatis.techtarget.com/definition/0,,sid9_gci211617,00.html ______________________ SELECTED LINKS: The HDCD Web site provides more information. http://hdcd.com/about/index.html ______________ CORRECTION: Definition for Radio Data System Yesterday's Word-of-the-Day contained a typographical error. View the corrected definition at... http://searchnetworking.techtarget.com/sDefinition/0,,sid7_gci843844,00.html ______________________ WHATIS DISCUSSION FORUM | Challenge #11: Encoding or encrypting? THE CHALLENGE: Karen, the new information security manager for a utility company, has a gut feeling that despite the lack of any previously known security breaches, her new company's sensitive customer information is vulnerable. The systems administrator has assured Karen that the data is safe because it is compressed with a private algorithm. Karen thinks he may be confusing a coding algorithm with an encryption algorithm. Should Karen speak up? >>Take the challenge http://searchsecurity.discussions.techtarget.com/WebX?[EMAIL PROTECTED]@.1dcf9d94/65!viewtype=threadDate&skip=&expand= ______________________ QUIZ #10 | iSeries(AS/400) commands Take our latest quiz and see if you can logically figure out which commands to use for specific tasks on IBM's iSeries (AS/400). Even if you've never worked with the iSeries, we bet you can figure out how to run one! iSeries (AS/400) commands http://search400.techtarget.com/sDefinition/0,,sid3_gci841205,00.html ______________________________ RECENT ADDITIONS AND UPDATES [1] logical negation symbol http://whatis.techtarget.com/definition/0,,sid9_gci843775,00.html [2] transcription error http://searchdatabase.techtarget.com/sDefinition/0,,sid13_gci843776,00.html [3] polarization http://whatis.techtarget.com/definition/0,,sid9_gci843762,00.html [4] NSFNET http://searchnetworking.techtarget.com/sDefinition/0,,sid7_gci843763,00.html [5] HDCD http://whatis.techtarget.com/definition/0,,sid9_gci843768,00.html ____________________________________________________________________ ::::::::::::::::::: WHATIS.COM CONTACTS ::::::::::::::::::: LOWELL THING, Site Editor ([EMAIL PROTECTED]) ____________________________________________________________________ MARGARET ROUSE, Assistant Editor ([EMAIL PROTECTED]) ___________________________________________________________________ :::::::::::::::::::: ABOUT THIS NEWSLETTER ::::::::::::::::::::: Created by TechTarget (http://www.techtarget.com) TechTarget - The Most Targeted IT Media Copyright 2002, All Rights Reserved. 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