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Questions and Answers
What is the difference between analog and digital sound?
What is the difference between analog and digital sound?
- Analog sound and digital sound are the same thing.
- Analog sound is represented by discrete samples, while digital sound is continuous and varies over a range of values.
- Analog sound is only produced by computers, while digital sound is produced by all types of devices.
- Analog sound is continuous and varies over a range of values, while digital sound is represented by discrete samples. (correct)
How can you check if a sound card is installed on your computer?
How can you check if a sound card is installed on your computer?
- Look for the "Multimedia" or "Sounds" icon in the Control Panel. (correct)
- Ask a computer technician to check for you.
- Open the computer and physically check for a sound card
- Check the device manager for a sound card driver.
What is the advantage of using digital audio over analog audio?
What is the advantage of using digital audio over analog audio?
- Digital audio is represented by thousands of samples, while analog audio is only represented by a few.
- Digital audio is device-dependent and may sound different each time it is played
- Digital audio should sound the same each time it is played, while analog audio may have variations. (correct)
- Analog audio has a higher quality than digital audio.
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Study Notes
- Sound is a waveform produced by varying pressure waves traveling through a medium, usually air.
- Analog sound is continuous and varies over a range of values, while digital sound is represented by discrete samples.
- All computers have basic sound capabilities, but more sophisticated sounds require a sound card and speakers/headphones.
- To check if a sound card is installed, look for the "Multimedia" or "Sounds" icon in the Control Panel.
- Analog sound must be digitized to be stored on a computer, which involves sampling.
- Digital audio is represented by thousands of samples and its quality depends on the frequency of sampling.
- Digital audio is not device-dependent and should sound the same each time it is played.
- Digital audio is used for music CDs and USBs.
- The volume of digital sound can be adjusted using a speaker icon in the bottom right-hand tray.
- Laptops may have an external volume control knob.
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