“Harmonizing Bits and Beats: A Student’s Tale of PCM”

1. What is Pulse Code Modulation (PCM)?

Pulse Code Modulation (PCM) is a digital signal processing technique that converts analog signals into a digital representation. In PCM, the continuous analog signal is sampled at discrete intervals, creating a sequence of samples that approximates the original signal. This sampling process enables the movement to be accurately represented in digital form.

Analog vs. Digital Signals:

Dive deeper into the distinction between analog and digital signals. Explain how analog signals are continuous and have infinite possible values, while digital signals are discrete and represent information using binary digits (bits).

2. Working Principle of PCM:

Sampling:

Elaborate on the concept of sampling. Discuss the Nyquist-Shannon sampling theorem, which defines the minimum sampling rate required to reconstruct the original signal accurately. Highlight the importance of choosing an appropriate sampling rate.

Quantization:

Explain quantization in detail. Describe how the amplitude values obtained from sampling are mapped to a finite number of discrete levels. Discuss the…