diff -r 50122e9b817e src/Analyser.cpp
--- a/src/Analyser.cpp	Fri Mar 07 10:31:51 2014 +0000
+++ b/src/Analyser.cpp	Fri Mar 07 10:32:02 2014 +0000
@@ -273,8 +273,10 @@
     QString out = "pitchtrackcandidates";
 
     if (range.isConstrained()) {
-        base = "vamp:pyin:yinfc:";
-        out = "f0";
+        base = "vamp:simple-cepstrum:simple-cepstrum:";
+        out = "interpolated_peak";
+//        base = "vamp:pyin:yinfc:";
+//        out = "f0";
     }
 
     Transforms transforms;
@@ -290,8 +292,10 @@
     t.setBlockSize(2048);
 
     if (range.isConstrained()) {
-        t.setParameter("minfreq", range.min);
-        t.setParameter("maxfreq", range.max);
+        t.setParameter("fmin", range.min);
+        t.setParameter("fmax", range.max); 
+//        t.setParameter("minfreq", range.min);
+//        t.setParameter("maxfreq", range.max);
     }
 
     RealTime start = RealTime::frame2RealTime