Demodulation is the process of extracting the original information from a modulated carrier wave. In communication systems, data is often transmitted by altering a carrier signal's properties, such as its amplitude, frequency, or phase. Demodulation reverses this process, allowing the receiver to retrieve the transmitted information, such as audio or video signals. This technique is essential in various technologies, including radio, television, and cellular networks. Different demodulation methods, like amplitude demodulation and frequency demodulation, are used depending on the type of modulation applied. Effective demodulation ensures clear and accurate communication between devices.