diff NoteHypothesis.cpp @ 58:9f50a5876dd3

Avoid accepting estimates with negligible confidence

--- a/NoteHypothesis.cpp	Thu Sep 27 17:22:51 2012 +0100
+++ b/NoteHypothesis.cpp	Tue Nov 20 21:30:35 2012 +0000
@@ -64,7 +64,6 @@
 NoteHypothesis::isOutOfDateFor(Estimate s) const
 {
     if (m_pending.empty()) return false;
-
     return ((s.time - m_pending[m_pending.size()-1].time) > 
             RealTime::fromMilliseconds(40));
 }
@@ -93,6 +92,16 @@
 {
     bool accept = false;
 
+    static double negligibleConfidence = 0.0001;
+
+    if (s.confidence < negligibleConfidence) {
+        // avoid piling up a lengthy sequence of estimates that are
+        // all acceptable but are in total not enough to cause us to
+        // be satisfied
+        m_state = Rejected;
+        return false;
+    }
+
     switch (m_state) {
 
     case New: