def cmd_speech(self, args):
        '''speech commands'''
        usage = "usage: speech <say>"
        if len(args) < 1:
            print(usage)
            return

        if args[0] == "say":
            if len(args) < 2:
                print("usage: speech say <text to say>")
                return
            self.say(" ".join(args[1::]))
        if args[0] == "list_voices":
            self.list_voices()