👉 In signal processing, a bandpass filter is a type of filter that passes only frequencies within specific ranges. It is often used in audio and telecommunications applications to remove unwanted low-frequency noise from signals. The bandwidth of a bandpass filter refers to the range of frequencies it can pass without causing any distortion or loss. A typical bandpass filter has a frequency response of 0 to infinity, meaning that it can operate at all frequencies within this range. This allows for the processing and transmission of audio signals
