Pulse Code Modulation

Pulse Code Modulation (PCM) is a method used to convert analog signals, like sound, into digital data that computers can process and transmit. It works by sampling the analog signal at regular intervals, measuring the signal’s strength at each point, and then representing those measurements as a series of binary numbers (0s and 1s). This digital version allows for accurate storage, transmission, and reproduction of audio or other analog signals. PCM is commonly used in digital telephony, audio CDs, and digital audio recording systems, ensuring high-quality, reliable communication.