A digital signal processor (DSP) is a specialized microprocessor designed to efficiently process digital signals. These signals can include audio, video, and other data types that are represented in binary form. DSPs are commonly used in applications such as audio processing, image processing, and telecommunications to perform tasks like filtering, compression, and modulation. DSPs are optimized for high-speed mathematical operations, making them ideal for real-time processing. They can handle complex algorithms and perform multiple calculations simultaneously, which is essential for applications that require quick responses, such as voice recognition and radar systems. Their efficiency helps improve performance in various electronic devices.