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Encyclopedia > Extended Resolution Compact Disc

eXtended Resolution Compact Disc (XRCD) is a special mastering and manufacture process patented by JVC for producing high fidelity redbook Compact Discs. It was first introduced in 1995. Victor Company of Japan, Limited ) (TYO: 6792 ), usually referred to as JVC, is an international consumer and professional electronics corporation based in Yokohama, Japan which was founded in 1927. ... High Fidelity is also the title of a book by Nick Hornby and a film directed by Stephen Frears, based upon Hornbys book. ... Red Book is the standard for audio CDs (Compact Disc Digital Audio system, or CDDA). ... A compact disc or CD is an optical disc used to store digital data, originally developed for storing digital audio. ... Year 1995 (MCMXCV) was a common year starting on Sunday (link will display full 1995 Gregorian calendar). ...


A XRCD is priced about twice as high as a regular full-priced CD. JVC attributes this to the higher cost of quality mastering and manufacturing.


Technical Overview

The XRCD definition refers to the mastering and manufacture process; the resulting CD and the contained data conforms to the redbook standard and are encoded at 16 bits, 44.1 KHz. Hence, XRCDs are playable on any compact disc player. This article is about the unit of information. ... A kilohertz (kHz) is a unit of frequency equal to 1,000 hertz (1,000 cycles per second). ...


JVC uses advanced dither algorithms (though without noise shaping) in their proprietary K2 technology and takes special care to transfer the analogue or digital source to physical disc. The company claims to have studied how inferior CD-remastering techniques degrade the master tape sound and strives to minimize this loss. Dither is a form of noise, or erroneous signal or data which is deliberately added to sample data for the purpose of minimizing quantization error. ... In mathematics, computing, linguistics, and related disciplines, an algorithm is a finite list of well-defined instructions for accomplishing some task that, given an initial state, will terminate in a defined end-state. ... Similar to dither, noise shaping is a bit reduction technique used to minimize quantization error. ...


Mastering process

If analog, the source material is first converted to digital via JVC's patented K2 20-bit or 24-bit analog-to-digital converter. Look up analog, analogue in Wiktionary, the free dictionary. ... This article is about the unit of information. ... 4-channel stereo multiplexed analog-to-digital converter WM8775SEDS made by Wolfson Microelectronics placed on X-Fi Fatal1ty Pro sound card An analog-to-digital converter (abbreviated ADC, A/D or A to D) is an electronic integrated circuit (i/c) that converts continuous signals to discrete digital numbers. ...


The musical information is next encoded on a magneto-optical disk for transport to JVC's Yokohama manufacturing plant, where jitter reduction is applied. The musical signal on the disk is down-converted to 16-bit through a K2 "super-coding" process. This 16-bit signal is EFM-encoded before going through a proprietary "Extended Pit Cut" DVD K2 laser technology to produce a glass master. This optimizes the linear velocity of the glass master, giving precise pit lengths to eliminate time jitters, controlled by an extremely precise Rubidium clock. All CDs are finally stamped directly from this glass master. Magneto-optical disc A Magneto-optical disc and the numerous rectangles on its surface A magneto-optical drive is a kind of optical disc drive capable of writing and rewriting data upon magneto-optical discs. ... For the town of Yokohama in Aomori Prefecture, see Yokohama, Aomori. ... In telecommunication, jitter is an abrupt and unwanted variation of one or more signal characteristics, such as the interval between successive pulses, the amplitude of successive cycles, or the frequency or phase of successive cycles. ... EFM may stand for: Eight-to-Fourteen Modulation Electronic Fetal Monitoring Elastic Fracture Mechanics Electronic Flow Meter Ethernet in the First Mile External link EFM Acronyms ... General Name, Symbol, Number rubidium, Rb, 37 Chemical series alkali metals Group, Period, Block 1, 5, s Appearance grey white Atomic mass 85. ...


XRCD2 and XRCD24 are improved versions of the original XRCD process. XRCD2 is the first to record to a magneto-optical disk via the digital K2 regenerator, while XRCD24 upgrades the original music signal's bit depth signal from 20 to 24 bits. Color depth is a computer graphics term describing the number of bits used to represent the color of a single pixel in a bitmapped image or video frame buffer. ...


External links

  • XRCD.com

  Results from FactBites:
 
Compact disc - Wikipedia, the free encyclopedia (5788 words)
Compact disc technology was later adapted for use as a data storage device, known as a CD-ROM.
Compact discs are made from a 1.2 mm thick disc of very pure polycarbonate plastic - similar to the material used to make bullet-proof windscreens and crash helmets.
A lacquer is spin coated onto the disc and the disc is transferred to a spindle.
  More results at FactBites »


 
 

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