FIR Filters

FIR (Finite Impulse Response) filters are digital tools used to modify signals, such as audio or data streams. They work by applying a specific set of weights (coefficients) to a limited number of past input values, then summing these to produce an output. This process effectively emphasizes desired parts of the signal or suppresses unwanted noise. FIR filters are valued for their stability and ease of design, making them common in communication systems, audio processing, and other applications where precise, predictable signal modification is needed.