diff --git a/bin/curvecalc b/bin/curvecalc
--- a/bin/curvecalc
+++ b/bin/curvecalc
@@ -198,6 +198,11 @@ class Output:
         self.later = reactor.callLater(1,self.update)
         
     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: