       emotion_level: @_emotion_level
       emotion: @_emotion
       speaker: @_speaker
+      format: @_format
       text: text
 
   speak: (text, callback)->

    TAKERU: 'takeru'
    SANTA: 'santa'
    BEAR: 'bear'

  constructor: (@api_key)->
    @_pitch = 100

    @_speaker = @SPEAKER.SHOW
    @_emotion = undefined
    @_emotion_level = undefined
    @_format = @FORMAT.WAV
    @

  speaker: (speaker)->
