Introduction - If you have any usage issues, please Google them yourself
(1) Design a Mini-max lowpass FIR filter such that Filter length = 19, Sampling frequency fs = 3000Hz, Pass Band 0 ~ 675Hz Transition band: 600 ~ 750 Hz, Weighting function: W (F) = 1 for passband, W (F) = 0.5 for stop band. Set = 0.0001 in Step 5.