Therefore, when scaling anomalous amplitudes and window lengths cannot be increased, it is then advantageous to zero pad using either the FFT_PAD or MIN_NUM_SAMPS_BAND parameters to ensure from 3 to 5 samples exist in each band. When replacing anomalous amplitudes (FREQ_REPLACE_INTERP is selected), the frequency band width is not as important, and it is generally not advantageous to zero pad. If both small windows and narrow frequency bands are required, interpolate rather than attenuate noisy frequencies.