Butterworths

A Butterworth filter is an electronic filter designed to allow signals within a certain range of frequencies to pass smoothly while minimizing distortions or abrupt changes. Known for its "flat" frequency response, it ensures that signals in the passband are transmitted evenly without ripples, providing a clear and natural sound or signal quality. Commonly used in audio processing, communications, and control systems, Butterworth filters effectively separate desired signals from unwanted noise or interference, making them a reliable choice when a smooth, consistent filtering effect is needed.