An approximate minimum-phase FIR filter design from specified frequency characteristic by use Hilbert transform.
python FIR-design1.py
draw frequency phase characteristic of approximate minimum-phase FIR filter from the frequency characteristic, freq_gain_table.csv.
save FIR filter coefficient to a text file.
frequency characteristic of freq_gain_table_csv
frequency phase characteristic with approximate minimum phase by use Hilbert transform
impulse waveform
frequency phase characteristic of FIR length 44100 by use scipy.signal.freqz
frequency phase characteristic of FIR length 8253 by use scipy.signal.freqz
These figures are in the docs folder.
python3
Please see Check version in FIR-design1.py.
MIT