comparison CepstrumPitchTracker.cpp @ 27:44bb93cae288

Change peak-to-next-peak ratio to a difference (because difference of peaks in log values don't vary with signal amplification)

     int n = m_bins;
     double *data = new double[n];
     filter(rawcep, data);
     delete[] rawcep;
 
-    double abstot = 0.0;
-
-    for (int i = 0; i < n; ++i) {
-	abstot += fabs(data[i]);
-    }
-
     double maxval = 0.0;
     int maxbin = -1;
 
     for (int i = 0; i < n; ++i) {
         if (data[i] > maxval) {

     double cimax = findInterpolatedPeak(data, maxbin);
     double peakfreq = m_inputSampleRate / (cimax + m_binFrom);
 
     double confidence = 0.0;
     if (nextPeakVal != 0.0) {
-        confidence = ((maxval / nextPeakVal) - 1.0) / 4.0;
+        confidence = (maxval - nextPeakVal) / 200.0;
         if (confidence > 1.0) confidence = 1.0;
     }
 
     Hypothesis::Estimate e;
     e.freq = peakfreq;