Pulse Code Modulation (PCM)

Pulse Code Modulation (PCM) is a method for converting analog audio signals into a digital format. It involves three main steps: sampling the analog signal at regular intervals to capture its amplitude, quantizing these samples into discrete levels, and then encoding these levels into binary numbers. This digital representation allows for efficient, noise-resistant transmission and storage of sound. PCM is widely used in digital telephony, audio recording, and speech processing, providing a precise and consistent way to digitize analog signals for modern electronic systems.