X-Git-Url: https://git.sesse.net/?p=pitch;a=blobdiff_plain;f=pitchdetector.cpp;h=a73fb8632579824a1e603f3a01d73c0d1b8e9d05;hp=02c7035754e2bf9b4940ec4823e951345f900069;hb=fa1b9cdf79b7688a8fec21e3a13eb8d8e6505391;hpb=acfe6ba53cbe46bbc35959602c2835906e3467e7

diff --git a/pitchdetector.cpp b/pitchdetector.cpp
index 02c7035..a73fb86 100644
--- a/pitchdetector.cpp
+++ b/pitchdetector.cpp
@@ -1,4 +1,5 @@
 #include <stdio.h>
+#include <string.h>
 #include <stdlib.h>
 #include <unistd.h>
 #include <fcntl.h>
@@ -107,7 +108,8 @@ std::pair<double, double> PitchDetector::find_peak(double *in, unsigned num_samp
 	// see if we might have hit an overtone (set a limit of 10dB)
 	for (unsigned i = 6; i >= 1; --i) {
 		if (best_bin != best_bin / i &&
-		    20.0 * log10(in[best_bin] / in[best_bin / i]) < 10.0f) {
+		    20.0 * log10(in[best_bin] / in[best_bin / i]) < 10.0f &&
+		    best_bin / i >= 5) {
 #if 0
 			printf("Overtone of degree %u!\n", i);
 #endif
@@ -251,7 +253,7 @@ std::pair<double, double> PitchDetector::interpolate_peak(double ym1, double y0,
 	double c = y0;
 	
 	double xmax = (ym1 - y1) / (2.0 * (y1 + ym1 - 2.0 * y0));
-	double ymax = 20.0 * (a * xmax * xmax + b * xmax + c) - 80.0;
+	double ymax = 20.0 * (a * xmax * xmax + b * xmax + c) - 70.0;
 
 	return std::make_pair(xmax, ymax);
 }