Signal processors are devices or software that manipulate signals to improve their quality or extract useful information. They are commonly used in various fields, including audio, video, and telecommunications. By filtering, amplifying, or transforming signals, these processors help enhance clarity and reduce noise, making them essential in applications like music production and data transmission. There are two main types of signal processors: analog and digital. Analog signal processors work with continuous signals, while digital signal processors (DSPs) handle discrete signals by converting them into a digital format. Both types play crucial roles in modern technology, enabling clearer communication and better media experiences.