Signal Processing is a field that focuses on the analysis, interpretation, and manipulation of signals. Signals can be anything from audio and video to sensor data, and the goal is to extract useful information or improve the quality of the signal. Techniques in this field are widely used in various applications, including telecommunications, audio engineering, and medical imaging. Digital Signal Processing (DSP) is a subset of Signal Processing that deals specifically with digital signals. It involves algorithms and techniques to process signals in a digital format, allowing for more efficient and flexible manipulation. DSP is crucial in modern technology, enabling clearer audio in smartphones and high-definition video in streaming services.