Module: Radio::Filter::Agc::Float

Defined in:
lib/radio/filters/agc.rb

Instance Method Summary collapse

Instance Method Details

#call(data) {|data.collect do |v| out = @gain * v abs_delta = out.abs - @reference if abs_delta.abs > @gain rate = @attack out = -1.0 if out < -1.0 out = 1.0 if out > 1.0 else rate = @decay if out < -1.0 out = -1.0 rate *= 10 end if out > 1.0 out = 1.0 rate *= 10 end end @gain -= abs_delta * rate out end| ... } ⇒ Object

Yields:

  • (data.collect do |v| out = @gain * v abs_delta = out.abs - @reference if abs_delta.abs > @gain rate = @attack out = -1.0 if out < -1.0 out = 1.0 if out > 1.0 else rate = @decay if out < -1.0 out = -1.0 rate *= 10 end if out > 1.0 out = 1.0 rate *= 10 end end @gain -= abs_delta * rate out end) 


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# File 'lib/radio/filters/agc.rb', line 37

def call data
  yield(data.collect do |v|
    out = @gain * v
    abs_delta = out.abs - @reference
    if abs_delta.abs > @gain
      rate = @attack
      out = -1.0 if out < -1.0
      out = 1.0 if out > 1.0
    else
      rate = @decay
      if out < -1.0
        out = -1.0
        rate *= 10
      end
      if out > 1.0
        out = 1.0
        rate *= 10
      end
    end
    @gain -= abs_delta * rate
    out
  end)
end