What is the difference between adaptive delta modulation and conventional delta modulation?

Adaptive Delta Modulation (ADM) and Conventional Delta Modulation (CDM) are both methods used in signal processing, specifically in the area of analog-to-digital and digital-to-analog conversion. However, they differ in several ways:

1. Complexity: ADM is more complex than CDM. This is because ADM involves an adaptive process where the step size changes according to the signal, while in CDM, the step size remains constant.

2. Signal Quality: ADM generally provides a better quality signal than CDM. This is because the adaptive nature of ADM allows it to better handle a wider range of signal variations. In contrast, CDM can struggle with rapid changes in the signal, leading to a lower quality output.

3. Error Rate: ADM has a lower error rate compared to CDM. This is again due to the adaptive step size in ADM,