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SOUND CARDS

Audio Hardware
By: Addison-Wesley/Prentice Hall PTR
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    2004-11-03

    Table of Contents:
  • Audio Hardware
  • Early PC Audio Adapters
  • Audio Adapter Features
  • Connectors for Advanced Features
  • Volume Control
  • Sound Drivers
  • DVD Movies on Your Desktop
  • Playing and Creating Digitized Sound Files
  • Sampling
  • Major Sound Chip Makers
  • AOpen TubeSound
  • 3D Audio Processing
  • Connecting PC Speakers and Completing the Installation
  • Troubleshooting Sound Card Problems
  • More Problems
  • Speakers
  • Theater and Surround Sound Considerations

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    Audio Hardware


    (Page 1 of 17 )

    Upgrading your audio? Scott Mueller gives you a tour over what you're to look for in a sound card, and how to troubleshoot some common problems with PC sound. (From Upgrading and Repairing PCs, 16th Edition by Scott Mueller, published by Que, ISBN 0789731798.)

    Audio HardwareSince the first edition of this book was published in 1988, a lot has happened to audio hardware. Although rudimentary audio capabilities were part of the original IBM PC of 1981 and its many successors, audio was used on early computers for troubleshooting rather than for creative tasks. Computers used beeps for little other than to signal problems such as a full keyboard buffer or errors during the power on self test (POST) sequence. The Macintosh, first introduced in 1984, included high-quality audio capabilities in its built-in hardware, but PCs did not gain comparable audio capabilities until the first add-on sound cards from companies such as Ad Lib and Creative Labs were developed in the late 1980s.

    Thanks to competition among many companies, we now enjoy widely supported d e facto hardware and software standards for audio. Audio hardware has gone from being an expensive, exotic add-on to being an assumed part of virtually any system configuration.

    Today's PC audio hardware might take one of the following forms:

    • An audio adapter on a PCI expansion card that you install into a bus slot in the computer.

    • An AC'97 sound codec chip located on the motherboard, using sound chips from companies such as Crystal, Analog Devices, Sigmatel, ESS, or others.

    • Hardware that's integrated into the motherboard's main chipset, as with some of the most recent chipsets for computers developed by Intel, SiS, NVIDIA, and VIA Technologies. A unique series of motherboards from Aopen combines this with a vacuum tube in the amplifier circuit catering to the audio purist.

    Regardless of their location, the audio features use jacks for speakers and a microphone. In addition, many of them provide dedicated jacks for MIDI hardware (older cards usually provided an analog game port for joysticks). As you will see later in this chapter, many mid-range and high-end audio adapters also support sophisticated digital audio input and output. On the software side, the audio adapter requires the support of a driver that you install either directly from an application or in your computer's operating system. This chapter focuses on the audio products found in today's PCs, their uses, and how you install and operate them.

    Buy the book!

    This chapter is from Upgrading and Repairing PCs, 16th edition,by Scott Mueller. (Que Books, 2004, ISBN: 0789731738).  Check it out at your favorite bookstore today.

    Buy this book now!

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