From 276dc75833838ea82a5e64393676f40e854f60ab Mon Sep 17 00:00:00 2001
From: towsey <m.towsey@qut.edu.au>
Date: Thu, 17 Sep 2020 11:20:43 +1000
Subject: [PATCH] Update ForwardTrackAlgorithm.cs

Issue #370 Do not add very short tracks to list of potential events
---
 src/AudioAnalysisTools/Tracks/ForwardTrackAlgorithm.cs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/AudioAnalysisTools/Tracks/ForwardTrackAlgorithm.cs b/src/AudioAnalysisTools/Tracks/ForwardTrackAlgorithm.cs
index 192a09411..d28280e18 100644
--- a/src/AudioAnalysisTools/Tracks/ForwardTrackAlgorithm.cs
+++ b/src/AudioAnalysisTools/Tracks/ForwardTrackAlgorithm.cs
@@ -158,7 +158,12 @@ public static List<Track> GetForwardTracks(double[,] peaks, double minDuration,
 
                     // Visit each spectral peak in order. Each may be start of possible track
                     var track = GetForwardTrack(peaks, row, col, threshold, converter);
-                    tracks.Add(track);
+
+                    // a forward track should have length >2
+                    if (track.PointCount > 2)
+                    {
+                        tracks.Add(track);
+                    }
                 }
             }