From: Steinar H. Gunderson <sgunderson@bigfoot.com>
Date: Fri, 28 Apr 2006 12:14:28 +0000 (+0000)
Subject: Start a bit above DC, to combat microphones with huge low-frequency content.
X-Git-Url: https://git.sesse.net/?p=pitch;a=commitdiff_plain;h=cbf0d7c43e3aa06886d425c4d26c99592eb35ba6;hp=67bcecfdd519329d303d315e08733d1d27db6225

Start a bit above DC, to combat microphones with huge low-frequency content.
---

diff --git a/pitch.cpp b/pitch.cpp
index eac947c..36be752 100644
--- a/pitch.cpp
+++ b/pitch.cpp
@@ -190,10 +190,10 @@ void find_peak_magnitudes(std::complex<double> *in, double *out, unsigned num_sa
 
 std::pair<double, double> find_peak(double *in, unsigned num_samples)
 {
-	double best_peak = in[0];
-	unsigned best_bin = 0;
+	double best_peak = in[5];
+	unsigned best_bin = 5;
 
-	for (unsigned i = 1; i < num_samples / 2 + 1; ++i) {
+	for (unsigned i = 6; i < num_samples / 2 + 1; ++i) {
 		if (in[i] > best_peak) {
 			best_peak = in[i];
 			best_bin = i;