Finite Impulse Response (FIR) filters (Part 1)

Figure 1: The frequency response magnitude of an equalizer response.

Finite Impulse Response (FIR) filters (pronounced either “F-I-R” or alternately, like the tree) are the rage these days. Like many things in audio, they have been around a very long time, but technology has now evolved to allow their practical implementation. Is this the panacea that we have been waiting for, the “filter messiah” that

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