Lesson 4 Worksheet (64 points)
1. What is sound? (2 points)

2. Identify and define the three essential features of sound that are captured by a sine
wave. (4 points)

3. What is pitch? How is it related to sound frequency? (4 points)

4. What is sampled sound? What is synthesized sound? (4 points)

5. What is sample resolution? How does it affect the quality of sampled sound? (6 points)

6. What is quantization? How does it affect a sampled sound? (6 points)

7. What is clipping? How does it affect a sampled sound? (4 points)

8. In what way is quantization related to sample resolution? (6 points)

9. What is sample rate? How does it affect the quality of a sampled sound? (6 points)

10. What is downsampling? Why would a developer convert a 44.1 kHz file to 11.25
kHz? (4 points)

11. What are two ways to reduce the file size of a sampled sound? (4 points)

12. What is a synthesizer? (2 points)

Below are four questions choose one and provide a detailed answer (use more than 3 sentences)  (12 points)

What are the main advantages and disadvantages of sampled sound?

What are the main advantages and disadvantages of synthesized sound?

Identify and explain the two main strategies for delivering sound on the Internet.

Explain why MP3 file compression became such a popular format for digital
music.