Google TTS

googletts.rb

module GoogleTTS
  require 'digest/md5'
  require 'restclient'
  TMP_PATH = '/tmp'

  class << self
    def say(text, lang='en')
      file = download_audio(text, lang)
      @gttspid = fork{ exec 'mpg123', '-q', file }
    end

    private

    def download_audio(text, lang='en')
      digest = Digest::MD5.hexdigest("#{lang}_#{text}")
      file = "#{TMP_PATH}/gtts_#{digest}.mp3"
      unless File.exist?(file)
        File.open(file, 'w') do |f|
          f.write RestClient.get("http://translate.google.com/translate_tts?tl=#{lang}&q=#{URI.encode(text)}")
        end
      end
      file
    end

  end
end

GoogleTTS.say 'pure awesomeness'