def _mute(self):
        """ mute vlc """

        if self.muted:
            self._sendCommand("volume {}\n".format(self.actual_volume))
            if logger.isEnabledFor(logging.DEBUG):
                logger.debug('VLC unmuted: {0} ({1}%)'.format(self.actual_volume, int(100 * self.actual_volume / self.max_volume)))
        else:
            if self.actual_volume == -1:
                self._get_volume()
            self._sendCommand("volume 0\n")
            if logger.isEnabledFor(logging.DEBUG):
                logger.debug('VLC muted: 0 (0%)')