A high-pass filter is an electronic device that allows high-frequency signals to pass through while blocking low-frequency signals. This means that sounds or signals with higher pitches can be heard clearly, while deeper, bass sounds are reduced or eliminated. High-pass filters are commonly used in audio equipment, such as mixing consoles and speakers, to enhance sound quality. In addition to audio applications, high-pass filters are also used in various fields like telecommunications and image processing. For example, in photography, they can help sharpen images by removing low-frequency noise, making the details stand out more clearly.