Don't run adjust_for_overtones if we found no peak.

[pitch] / pitch.cpp

diff --git a/pitch.cpp b/pitch.cpp
index c8246dcf5f28436277ad51c6cff8bf94f145bc64..72e956961b1e75a188d0a2083671757aee221aad 100644 (file)
--- a/pitch.cpp
+++ b/pitch.cpp
@@ -60,7 +60,8 @@ int main()
                fftw_execute(p);
                find_peak_magnitudes(out, bins, FFT_LENGTH);
                std::pair<double, double> peak = find_peak(bins, FFT_LENGTH);
                fftw_execute(p);
                find_peak_magnitudes(out, bins, FFT_LENGTH);
                std::pair<double, double> peak = find_peak(bins, FFT_LENGTH);

-               peak = adjust_for_overtones(peak, bins, FFT_LENGTH);
+               if (beak.first > 0.0)
+                       peak = adjust_for_overtones(peak, bins, FFT_LENGTH);

 
                if (peak.first < 50.0 || peak.second - log10(FFT_LENGTH) < 0.0) {
 #if TUNING == WELL_TEMPERED_GUITAR
 
                if (peak.first < 50.0 || peak.second - log10(FFT_LENGTH) < 0.0) {
 #if TUNING == WELL_TEMPERED_GUITAR