Sunday, December 21, 2014
Search
  
Most Popular
Essays
Optical Storage
WEB Reviews
Seagate Enterprise Capacity 3.5 V.3 4TB SAS 6Gb/s HDD Review
OCZ Vector 256GB SSD Review @ Custom PC Review
Gigabyte F2A85XM-D3H
NZXT Phantom 630
Auvio Bluetooth Portable Speaker Review
Corsair H90 CPU Cooler Review
BIOSTAR Hi-Fi Z77X (Intel Z77) Motherboard Review
Noctua NH-L9i Cooler Review on Technic3D
Breaking News
Kodak Returns To CES With Consumer Product Line
North Korea Suggests Joint Inverstigation With U.S. Over Sony Hacking
T-Mobile to Pay $90 Million To Settle Case With FCC
New Trojan Targetted Banks Wordlwide
FBI Confirms North Korea Was Behind Sony Hack
Apple Responds To BBC's Allegations Over Working Conditions In Chinese Factory
BlackBerry Returns To Cash Flow
Comparison: Quantum Dot Vs. OLED Displays
Home > Essays > Optical Storage

Monday, June 17, 2002
Writing Quality

1. Introduction

Writing Quality - Page 1

- Introduction

We have all heard the familiar clicks and skips from our CD Audio Player that result from a scratched, damaged, or dirty CD disc. Sometimes the effects of disc defects can be subtle and result in audio distortion instead of obvious click and skips. This distortion results from the inability of standard CD player's error correction codes (ECC) to correct for the ablation of the underlying audio information by a scratch defect or electrical noise.

In fact, when the CD ECC fails, many CD drives have special circuitry called "error concealment" circuitry to conceal the errors that ECC was unable to fix. The error concealment circuitry introduces distortion while it tries to interpolate through the errors. Many types if error concealment circuity will even insert audio noise when activated to mask the errors. This is hardly what lovers of high fidelity audio reproduction seek.

In order to complete this article we used information from:

  1. Calimetrics (http://www.calimetrics.com)
  2. ECMA (http://www.ecma.ch/)
  3. Kelin Kuhn's paper (http://www.ee.washington.edu/conselec/CE/kuhn/cdaudio/95x6.htm)
  4. Clover Systems (http://www.cloversystems.com)
  5. YAMAHA Japan (http://www.yamaha.co.jp/computer)
  6. Plextor Europe (http://www.plextor.be)
  7. Pioneer Japan (http://www.pioneer.co.jp)
  8. Quantized (http://www.quantized.com)
  9. MS Science (http://www.mscience.com)
  10. Philips (http://www.licensing.philips.com)
  11. Advanced Surface Microscopy (http://www.asmicro.com/)
  12. Eclipse Data (http://www.eclipsedata.com)
  13. MMC Draft Standard (http://www.t10.org)
  14. JVC Japan (http://www.victor.co.jp/products/others/ENCK2.html)




Get RSS feed Easy Print E-Mail this Message


 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2014 - All rights reserved -
Privacy policy - Contact Us .