The default BiquadFitler type is highshelf.
The documentation says "Frequencies higher than the frequency get a boost or an attenuation; frequencies lower than it are unchanged.", but I think a lowpass would be better, considering its description "Standard second-order resonant lowpass filter with 12dB/octave rolloff. Frequencies below the cutoff pass through; frequencies above it are attenuated.".
I might not understand these well enough, but lowpass better.
The default BiquadFitler type is highshelf.
The documentation says "Frequencies higher than the frequency get a boost or an attenuation; frequencies lower than it are unchanged.", but I think a lowpass would be better, considering its description "Standard second-order resonant lowpass filter with 12dB/octave rolloff. Frequencies below the cutoff pass through; frequencies above it are attenuated.".
I might not understand these well enough, but lowpass better.