tweak bittern recognizer

Issue #297
QutEcoacoustics · May 7, 2020 · e52411a · e52411a
1 parent 2cd4bfe
commit e52411a
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Showing 2 changed files with 13 additions and 6 deletions.
diff --git a/src/AnalysisConfigFiles/RecognizerConfigFiles/Towsey.BotaurusPoiciloptilus.yml b/src/AnalysisConfigFiles/RecognizerConfigFiles/Towsey.BotaurusPoiciloptilus.yml
@@ -22,11 +22,11 @@ Profiles:
         MaxHertz: 200
         MinDuration: 0.2
         MaxDuration: 1.0
-        DecibelThreshold: 6.0
+        DecibelThreshold: 3.0
 
 #Combine each pair of Boobook syllables as one event
 #CombineProximalSimilarEvents: false
-CombinePossibleSyllableSequence: false
+CombinePossibleSyllableSequence: true
 SyllableStartDifference: 3.0
 SyllableHertzGap: 100
 
@@ -45,8 +45,9 @@ SaveIntermediateWavFiles: Never
 SaveIntermediateCsvFiles: false
 # Available options (case-sensitive): [False/Never | True/Always | WhenEventsDetected]
 # "True" is useful when debugging but "WhenEventsDetected" is required for operational use.
-SaveSonogramImages: True
-#SaveSonogramImages: WhenEventsDetected
+#SaveSonogramImages: True
+SaveSonogramImages: WhenEventsDetected
+
 # DisplayCsvImage is obsolete - ensure it remains set to: false
 DisplayCsvImage: false
 ## End section for AnalyzeLongRecording

diff --git a/src/AnalysisPrograms/Recognizers/Birds/BotaurusPoiciloptilus.cs b/src/AnalysisPrograms/Recognizers/Birds/BotaurusPoiciloptilus.cs
@@ -113,12 +113,18 @@ public override RecognizerResults Recognize(
                 newEvents = events;
             }
 
-            //filter the events for duration
+            //filter the events for duration in seconds
+            var minimumEventDuration = 0.5;
+            if (genericConfig.CombinePossibleSyllableSequence)
+            {
+                minimumEventDuration = 2.0;
+            }
+
             var filteredEvents = new List<EventCommon>();
             foreach (var ev in newEvents)
             {
                 var eventDuration = ((SpectralEvent)ev).EventDurationSeconds;
-                if (eventDuration < 11.0)
+                if (eventDuration > minimumEventDuration && eventDuration < 11.0)
                 {
                     filteredEvents.Add(ev);
                 }