sr       = 44100
kr       = 4410
ksmps    = 10
nchnls   = 1

instr    1 ; lowpass (+)Signal, highpass (-)Signal (Unusual distortion)

ilevl    = p4 ; Output level
ifreq    = p5 ; Crossover frequency in Hz

ain      soundin  "Sample"

aflt1    butterlp  ain, ifreq
aflt2    butterhp  ain, ifreq

apos     limit  aflt1, 0, 32768
aneg     limit  aflt2,-32768, 0

amix     = apos + aneg

out      amix*ilevl
  
endin