18 sound

Comtia A+ note

1. Sound

2. Multimedia on a PCMultimedia on a PC
GoalGoal
–To create or reproduce life like To create or reproduce life like
representations of sight and soundrepresentations of sight and sound
ChallengeChallenge
–Data storage is digitalData storage is digital
–Sights and sounds are analogSights and sounds are analog

3. Multimedia DevicesMultimedia Devices
Sound cardsSound cards
Digital camerasDigital cameras
MP3 playersMP3 players
Video capture cardsVideo capture cards

4. Sound CardsSound Cards
Have ports for external stereo speakers and Have ports for external stereo speakers and
microphone inputmicrophone input
May be Sound-blaster compatibleMay be Sound-blaster compatible
Sampling accuracy is critical to performanceSampling accuracy is critical to performance
Stages of computerized soundStages of computerized sound
–Convert from analog to digital (digitize)Convert from analog to digital (digitize)
–Store digital data in compressed data fileStore digital data in compressed data file
–Reproduce or synthesize sound (digital to Reproduce or synthesize sound (digital to
analog)analog)

5. Installing a Sound CardInstalling a Sound Card
ProcessProcess
–Physically install card in empty PCI slot on the Physically install card in empty PCI slot on the
motherboardmotherboard
–Install sound card driverInstall sound card driver
–Install sound applications softwareInstall sound applications software
Special considerations for Windows Special considerations for Windows
2000/XP installations2000/XP installations

6. Installing a Sound Card Installing a Sound Card
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7. Installing a Sound Card Installing a Sound Card
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8. Troubleshooting Sound
Hardware Problems
Volume
Speakers
Configuration Problems