From: sgunderson@bigfoot.com <>
Date: Tue, 5 Feb 2008 01:53:19 +0000 (+0100)
Subject: Don't choose impossible tones as undertones.
X-Git-Url: https://git.sesse.net/index.cgi/?p=pitch;a=commitdiff_plain;h=afe882f57eb4991f01b20c4ecba98b2cc07594a1

Don't choose impossible tones as undertones.
---

diff --git a/pitchdetector.cpp b/pitchdetector.cpp
index 02c7035..6988864 100644
--- a/pitchdetector.cpp
+++ b/pitchdetector.cpp
@@ -107,7 +107,8 @@ 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