Chapter 3 / 3.8 / 3.8.8

3.8.8 What Is Delta Modulation?

Explore a simple alternative to conventional PCM in which only changes in signal amplitude are transmitted. Learn how delta modulation reduces bit rate and why step size, slope overload, and granular noise determine its performance.

1. What Is Delta Modulation?
2. Why Was Delta Modulation Developed?
3. Why Is It Called Delta Modulation?
4. How Does Delta Modulation Work?
5. What Does the Receiver Do?
6. Why Does Delta Modulation Use Only One Bit?
7. How Does Delta Modulation Reduce Complexity?
8. Is Delta Modulation More Efficient Than PCM?
9. What Is the Step Size?
10. What Happens If the Step Size Is Too Small?
11. What Is Slope Overload Distortion?
12. How Can Slope Overload Be Reduced?
13. What Happens If the Step Size Is Too Large?
14. What Is Granular Noise?
15. Why Is There a Trade-Off Between Slope Overload and Granular Noise?
16. What Is Adaptive Delta Modulation?
17. How Does Adaptive Delta Modulation Work?
18. How Does Delta Modulation Compare with PCM?
19. Where Has Delta Modulation Been Used?
20. Does Delta Modulation Influence Modern Systems?
21. Why Is Delta Modulation Important?

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