Chapter 5 - Recreating the beep synth

The fourth version of our new beep (Ruby)

We need to add this class definition to the file synthifo.rb under the path app/server/ruby/lib/sonicpi/synths

The name needs to be variable (ie no spaces or funky characters please).

class MyFourthSynth < SonicPiSynth
  def name
    "My Beep V4"
  end

  def introduced
    Version.new(5,0,0)
  end

  def synth_name
    "myfourthsynth"
  end

  def doc
    "my sine wave improved and finished"
  end

  def arg_defaults
    {
      :note => 52,
      :note_slide => 0,
      :note_slide_shape => 1,
      :note_slide_curve => 0,
      :amp => 1,
      :amp_slide => 0,
      :amp_slide_shape => 1,
      :amp_slide_curve => 0,
      :pan => 0,
      :pan_slide => 0,
      :pan_slide_shape => 1,
      :pan_slide_curve => 0,

      :attack => 0,
      :decay => 0,
      :sustain => 0,
      :release => 1,
      :attack_level => 1,
      :decay_level => :sustain_level,
      :sustain_level => 1,
      :env_curve => 2
    }
  end
end


# We also need to add this line to the `BaseInfo` class under the variable name `@@synth_infos`

:myfourthsynth => MyFourthSynth.new,