def update2(self,t):

        # spot alsa soundcard offset is always 0, we get times about a

        # second ahead of what's really getting played

        #t = t - .7

        dispatcher.send("update status",

                        val="ok: receiving time from music player")

        if self.later and not self.later.cancelled and not self.later.called:

            self.later.cancel()

        self.recent_t = self.recent_t[-50:]+[t]

        period = (self.recent_t[-1] - self.recent_t[0]) / len(self.recent_t)

        dispatcher.send("update period", val=period)

        self.send_dmx(t)

    def send_dmx(self,t):

        dispatcher.send("curves to sliders", t=t)

        scaledsubs=[]

        for st in self.subterms:

            scl = st.scaled(t)

            scaledsubs.append(scl)