High-pass Filter

A high-pass filter is a device or system that allows high-frequency signals to pass through while blocking or reducing lower-frequency signals. Imagine listening to music; a high-pass filter might remove deep bass sounds, letting treble sounds like cymbals or high notes pass. It’s used in audio processing, electronics, and imaging to focus on rapid changes or fine details, eliminating slow, steady signals. This helps clarify or emphasize specific parts of a signal, making it useful in applications like audio equalization, image sharpening, or radio communications.