Parses the frequencies input by the user, converting them to a fraction of the sampling rate and setting the filter type (low-pass, high-pass, band-pass, band-stop) appropriately.
parse_filt_freqs(low_freq, high_freq, srate, method)
low_freq | low frequency cutoff (Hz) |
---|---|
high_freq | High frequency cutoff (Hz) |
srate | Sampling rate (Hz) |
method | "iir" or "fir" method. |