Has someone tested the cheby option of soxr lib ?

[jaaptina]

I just tried. It works fine but I don't hear a difference. All music is transcoded to WAV24 96kHz and some equalisation is applied:
convOut={-af aresample=resampler=soxr:precision=28:cheby=1,equalizer=f=55:width_type=q:width=​20:g=-15,equalizer=f=170:width_type=q:width=20:g=-10}