Class: Synthesizer::OscillatorSource::Base

Inherits:
Object
  • Object
show all
Defined in:
lib/synthesizer/oscillator_source/base.rb

Defined Under Namespace

Classes: Context

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Base

Returns a new instance of Base.



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# File 'lib/synthesizer/oscillator_source/base.rb', line 4

def initialize
end

Instance Method Details

#generate_context(soundinfo, note_perform, init_phase) ⇒ Object 



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# File 'lib/synthesizer/oscillator_source/base.rb', line 31

def generate_context(soundinfo, note_perform, init_phase)
  Context.new(soundinfo, note_perform, init_phase)
end

#next(context, rate, sym, sync, l_gain, r_gain) ⇒ Object 



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# File 'lib/synthesizer/oscillator_source/base.rb', line 7

def next(context, rate, sym, sync, l_gain, r_gain)
  soundinfo = context.soundinfo
  channels = context.channels
  window_size = context.window_size
  pos = context.pos
  hz = rate.freq(soundinfo)

  dst = window_size.times.map {|i|
    sample(context, pos.next(hz, sym, sync))
  }
  dst = Vdsp::DoubleArray.create(dst)

  case channels
  when 1
    Buffer.new(dst * l_gain)
  when 2
    Buffer.new(dst * l_gain, dst * r_gain)
  end
end

#sample(context, phase) ⇒ Object

Raises:

  • (Error) 


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# File 'lib/synthesizer/oscillator_source/base.rb', line 27

def sample(context, phase)
  raise Error, "not implemented abstruct method: #{self.class.name}.sample(context, phase)"
end