Signal processing is the technique of analyzing, modifying, and synthesizing signals, which can be anything from sound and images to sensor data. By using various algorithms and mathematical tools, engineers can enhance the quality of these signals, remove noise, or extract important information. This is crucial in many applications, such as audio engineering, telecommunications, and medical imaging. In everyday life, signal processing helps improve our experiences with technology. For instance, when you listen to music on your phone, signal processing ensures that the sound is clear and enjoyable. Similarly, in smartphones, cameras, and GPS devices, signal processing plays a vital role in delivering accurate and high-quality results.