Connect up the ChannelsTogether option in R3 as well, to extend the channel lock range upward

src/finer/Guide.h

@@ -156,6 +156,7 @@ public:
                         double meanMagnitude,
                         int unityCount,
                         bool realtime,
+                        bool tighterChannelLock,
                         Guidance &guidance) const {
 
         bool hadPhaseReset = guidance.phaseReset.present;
@@ -191,7 +192,12 @@ public:
 
         guidance.channelLock.present = true;
         guidance.channelLock.f0 = 0.0;
-        guidance.channelLock.f1 = 600.0;
+
+        if (tighterChannelLock) {
+            guidance.channelLock.f1 = nyquist;
+        } else {
+            guidance.channelLock.f1 = 600.0;
+        }
 
         bool kick =
             (segmentation.percussiveBelow > 40.0) &&

src/finer/R3Stretcher.cpp

@@ -968,7 +968,10 @@ R3Stretcher::analyseChannel(int c, int inhop, int prevInhop, int prevOuthop)
     } else {
         m_unityCount = 0;
     }
-        
+
+    bool tighterChannelLock =
+        m_parameters.options & RubberBandStretcher::OptionChannelsTogether;
+    
     m_guide.updateGuidance(ratio,
                            prevOuthop,
                            classifyScale->mag.data(),
@@ -980,6 +983,7 @@ R3Stretcher::analyseChannel(int c, int inhop, int prevInhop, int prevOuthop)
                            v_mean(classifyScale->mag.data() + 1, classify/2),
                            m_unityCount,
                            isRealTime(),
+                           tighterChannelLock,
                            cd->guidance);
 /*
     if (c == 0) {