CD Basics

 CD Audio










Introduction to CD audio

CD Audio Introduction

Compact Discs were designed for high quality noise-free music using a consumer friendly physical format.

CD Audios were designed to hold over an hour of high quality stereo audio, stored in a digital format so that noise is virtually non-existent. Under normal use CDs also do not wear out.

The compact disc was the first consumer format to use digital techniques to represent audio. This fact is often overlooked and digital music tends to mean MP3, or similar, files downloaded via the Internet.

The Compact Disc Digital Audio (CD-DA) standard was developed by Philips and Sony and introduced into the market in Japan in October 1982 and in USA and Europe in early 1983.

Features of the Compact Disc

Compact Discs are superior to vinyl discs and cassettes in a number of ways:

  • Superior sound quality without clicks, hiss or other defects
  • Fast random access to any track
  • Long-life; compact discs do not wear out
  • Compact size: only 12cm in diameter so they take up little storage space

The superior quality of CDs and their compact size is made possible by the use of digital technology.

CD digital audio should provide the quality needed for all audio applications, but for the purist this is not always enough. For this reason an enhanced format (HDCD) has been introduced and the new DVD-Audio format incorporates new features including higher sampling rate, more bits per sample and multi-channel surround sound.




In this page:
Features of the Compact Disc


  "The compact disc was the first consumer format to use digital techniques"


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