"We present a generalized optimal minimum phase digital FIR filter design algorithm that supports (1) arbitrary magnitude response specifications, (2) high coefficient accuracy, and (3) real and complex filters."
This page lists digital filter design software tools for DSP. Tools are categorized as Commercial, Open-Source, Freeware, or Web-Based.
Commercial Filter Design Software
Commercial filter design software tools generally have more capabilities than their open/free counterparts, making them more productive to use.
3.1 What are the methods of designing FIR filters?
The three most popular design methods are (in order):