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Question 1 of 10

1. Question
Which description most accurately describes 'Sampling'?
- Recording the sound on a computer.
- Recording the frequency of sound at regular intervals and storing each recording as a binary value.
- Recording the frequency of sounds as binary numbers.
- Recording the height of sound waves, at regular intervals and storing each recording as a binary value.
- Recording snippets of sound and storing them in a computer.
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Question 2 of 10

2. Question
What is meant by the term 'Bit Rate'?
- The speed at which binary recordings of sound are taken.
- The interval size between sampling.
- The rate at which bits are stored in a sound file.
- The size of the overall sound file.
- The amount of bits used to store the recording of each sample.
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Question 3 of 10

3. Question
What will be the difference between a sound file sampled at 100 times per second compared to a sound file sampled at 1000 times per second?
- The file sampled at 100 times per second will be worse quality and have a larger file size.
- The file sampled at 100 times per second will be better quality and have a larger file size.
- The file sampled at 100 times per second will be worse quality and have a smaller file size.
- The file sampled at 100 times per second will be better quality and have a smaller file size.
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Question 4 of 10

4. Question
What will be the difference between a sound file with a bitrate of 100kbps compared to a sound file with a bitrate of 1000kbps?
- The file with a bit rate of 1000kbps will be worse quality and have a larger file size.
- The file with a bit rate of 1000kbps will be higher quality and have a larger file size.
- The file with a bit rate of 1000kbps will be worse quality and have a smaller file size.
- The file with a bit rate of 1000kbps will be higher quality and have a smaller file size.
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Question 5 of 10

5. Question
If a sound file had a bit rate of 100kbps and was 100 seconds in length, what would be the size of the file in megabytes?
- 10,000,000mb
- 1,250,000mb
- 10,000mb
- 1,250mb
- 10mb
- 7.5mb
- 5.25mb
- 1.25mb
- 0.1mb
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Question 6 of 10

6. Question
If a sound was sampled at 320kbps, how many bits of data would there be after 10 seconds?
- 320
- 3200
- 32000
- 320000
- 3200000
- 32000000
- 320000000
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Question 7 of 10

7. Question
There are 2 sound files, both 1 min in length. File 1 has a bitrate of 56kbps and a sampling frequency of 31kHz. File 2 has a bitrate of 192kbps and a sampling frequency of 28kHz. Which has the better sound quality?
- File 1
- File 2
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Question 8 of 10

8. Question
Sound that has been sampled is also known as...
- Digital Sound
- Analogue Sound
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Question 9 of 10

9. Question
A higher bitrate means that the samples of sound recorded will be of...
- A Lower Quality
- A Higher Quality
- The Same Quality
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Question 10 of 10

10. Question
Which of the following files uses compression?
- WAV
- CD Audio File
- MP3
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