Low-pass filters

A low-pass filter is a device or system that allows signals with low frequencies to pass through while reducing or blocking higher-frequency signals. Think of it like a sieve that lets only the larger particles through; in this case, it filters out rapid or sharp changes in a signal. Low-pass filters are used in audio equipment to remove high-pitched noise, in electronics to smooth out voltage signals, and in various other applications where it’s important to focus on slow or steady information while ignoring quick fluctuations. They help improve clarity and stability in many electronic systems.