Module: Synthesizer::Utils

Defined in:
lib/synthesizer/utils.rb

Class Method Summary collapse

Class Method Details

.cross_panning(pan) ⇒ Object 



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# File 'lib/synthesizer/utils.rb', line 13

def self.cross_panning(pan)
  if pan<-1.0
    pan = -1.0
  elsif 1.0<pan
    pan = 1.0
  end

  l_gain = 1.0 - pan
  lr_gain = 0.0
  if 1.0<l_gain
    lr_gain = l_gain - 1.0
    l_gain = 1.0
  end

  r_gain = 1.0 + pan
  rl_gain = 0.0
  if 1.0<r_gain
    rl_gain = r_gain - 1.0
    r_gain = 1.0
  end

  normalize = [1.0 - pan, 1.0 + pan].max

  {
    l_gain: l_gain,
    lr_gain: lr_gain,
    r_gain: r_gain,
    rl_gain: rl_gain,
    normalize: normalize
  }
end

.panning(pan) ⇒ Object 



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# File 'lib/synthesizer/utils.rb', line 4

def self.panning(pan)
  cp = cross_panning(pan)

  l_gain = (cp[:l_gain] + cp[:lr_gain]) / cp[:normalize]
  r_gain = (cp[:r_gain] + cp[:rl_gain]) / cp[:normalize]

  [l_gain, r_gain]
end