def say_speechd(self, text, priority='important'):
        '''speak some text'''
        ''' http://cvs.freebsoft.org/doc/speechd/ssip.html see 4.3.1 for priorities'''
        import speechd
        self.speech = speechd.SSIPClient('MAVProxy%u' % os.getpid())
        self.speech.set_output_module('festival')
        self.speech.set_language('en')
        self.speech.set_priority(priority)
        self.speech.set_punctuation(speechd.PunctuationMode.SOME)
        self.speech.speak(text)
        self.speech.close()
speak some text