FillyRadio Developer Labs: Lqiuidsoap AGC v0.3beta

# LOG FILES HELP! Leave these fuckers in
set("log.file",false)
set("log.stdout",true)
set("log.level",4)

# Stick your source stream here
url = "http://127.0.0.1:8000"

# Liquidsoap bitches at fallible sources. Let's pretend this one's infallible
staudio = mksafe(input.http(url))

# Gate any noisy shit
staudio = ladspa.gate(staudio, threshold = -60.0, attack = 0.15, hold = 1.0, decay = 200.0, range = -25.0)

# One big AGC to normalise incoming shit
staudio = normalize(target = 0., window = 0.03, gain_min = -16., gain_max = 0., staudio)

# Low ratio compression (smooth that fucker out)
staudio = ladspa.sc4(rms_peak=0.3, attack_time = 0.5, release_time = 3., threshold_level = -36.0, ratio=1., makeup_gain = 6., staudio)

# This is the 5-band crossover setup for the block underneath
sub = filter.iir.eq.low(frequency = 190.,)

lhi = filter.iir.eq.high(frequency = 190.,)
llo = filter.iir.eq.low(frequency = 700.,)

mhi = filter.iir.eq.high(frequency = 700.,)
mlo = filter.iir.eq.low(frequency = 2500.,)

hhi = filter.iir.eq.high(frequency = 2500.)
hlo = filter.iir.eq.low(frequency = 6500.)

shi = filter.iir.eq.high(frequency = 6500.)
slo = filter.iir.eq.low(frequency = 15000.)

# Basic RMS for use below
c = ladspa.sc4(rms_peak = 0.5)
# Basic Limiter for use below
l = ladspa.tap_limiter(limit_level = -0.5)

# This is basically a bunch of limiters working together to make a 5-Band AGC
staudio = add(normalize=false,
  [
  l(c(attack_time = 2.25, release_time = 40., threshold_level = -10., ratio=3., makeup_gain = 2., sub(studio))),
  l(c(attack_time = 2.25, release_time = 40., threshold_level = -13., ratio=3., makeup_gain = 2., llo(lhi(staudio)))),
  l(c(attack_time = 2.25, release_time = 40., threshold_level = -9., ratio=3., makeup_gain = 2., mlo(mhi(staudio)))),
  l(c(attack_time = 2.25, release_time = 40., threshold_level = -6., ratio=3., makeup_gain = 1.5, hlo(hhi(staudio)))),
  l(c(attack_time = 2.25, release_time = 40., threshold_level = -4., ratio=3., makeup_gain = 1., slo(shi(staudio))))
  ])

# If you can limit it, limit the fucker
# Blame Final Draft if it breaks
finaldraft = l(staudio)

# Setup your codecs/outputs here (Copy pasta for multiple outputs)
output.shoutcast(
  %aacplus(channels=2, bitrate=64),
  host="127.0.0.1", port=8004, password="PENGUINS-UP-MY-ARSE",
  finaldraft)
# Thanks, Final Draft...