public static RecognizerResults DoCallRecognition(string name, TimeSpan segmentStartOffset, AudioRecording recording, Lazy <IndexCalculateResult[]> indices, DirectoryInfo outputDirectory, int imageWidth)
{
Log.Debug("Looking for recognizer and config files for " + name);
// find an appropriate event recognizer
var recognizer = AnalyseLongRecording.FindAndCheckAnalyzer <IEventRecognizer>(name, name + ".yml");
// load up the standard config file for this species
var configurationFile = ConfigFile.Resolve(name + ".yml");
var configuration = recognizer.ParseConfig(configurationFile);
// TODO: adapt sample rate to required rate
int?resampleRate = configuration.ResampleRate;
if (resampleRate.HasValue && recording.WavReader.SampleRate != resampleRate.Value)
{
Log.Warn("Sample rate of provided file does does match");
}
// execute it
Log.Info("MultiRecognizer: Executing single recognizer " + name);
RecognizerResults result = recognizer.Recognize(
recording,
configuration,
segmentStartOffset,
indices,
outputDirectory,
imageWidth);
Log.Debug("MultiRecognizer: Completed single recognizer" + name);
var scoreTracks = result.Plots.Select(p => GenerateScoreTrackImage(name, p?.data, imageWidth)).ToList();
if (scoreTracks.Count != 0)
{
result.ScoreTrack = ImageTools.CombineImagesVertically(scoreTracks);
}
return(result);
}
public override AnalysisResult2 Analyze <T>(AnalysisSettings analysisSettings, SegmentSettings <T> segmentSettings)
{
var recording = new AudioRecording(segmentSettings.SegmentAudioFile.FullName);
// get indices configuration - extracted in BeforeAnalyze
var acousticIndicesConfig = (RecognizerConfig)analysisSettings.Configuration;
// get a lazily calculated indices function - if you never get the lazy value, the indices will never be calculated
var lazyIndices = this.GetLazyIndices(
recording,
analysisSettings,
segmentSettings,
acousticIndicesConfig.HighResolutionIndices);
// determine imageWidth for output images
int imageWidth = (int)Math.Floor(
recording.Duration.TotalSeconds
/ acousticIndicesConfig.HighResolutionIndices.IndexCalculationDuration);
// execute actual analysis
RecognizerResults results = this.Recognize(
recording,
analysisSettings.Configuration,
segmentSettings.SegmentStartOffset,
lazyIndices,
segmentSettings.SegmentOutputDirectory,
imageWidth);
var analysisResults = new AnalysisResult2(analysisSettings, segmentSettings, recording.Duration);
BaseSonogram sonogram = results.Sonogram;
double[,] hits = results.Hits;
var predictedEvents = results.Events;
// double check all the events have the right offset in case it was missed
foreach (var predictedEvent in predictedEvents)
{
predictedEvent.SegmentStartSeconds = segmentSettings.SegmentStartOffset.TotalSeconds;
}
analysisResults.Events = predictedEvents.ToArray();
// compress high resolution indices - and save them.
// IF they aren't used, empty values are returned.
if (lazyIndices.IsValueCreated)
{
this.SummarizeHighResolutionIndices(
analysisResults,
lazyIndices.Value,
acousticIndicesConfig.HighResolutionIndices);
}
// write intermediate output if necessary
if (analysisSettings.AnalysisDataSaveBehavior)
{
this.WriteEventsFile(segmentSettings.SegmentEventsFile, analysisResults.Events);
analysisResults.EventsFile = segmentSettings.SegmentEventsFile;
}
if (analysisSettings.AnalysisDataSaveBehavior)
{
this.WriteSummaryIndicesFile(segmentSettings.SegmentSummaryIndicesFile, analysisResults.SummaryIndices);
}
if (analysisSettings.AnalysisDataSaveBehavior)
{
analysisResults.SpectraIndicesFiles =
this.WriteSpectrumIndicesFiles(
segmentSettings.SegmentSpectrumIndicesDirectory,
segmentSettings.Segment.SourceMetadata.Identifier,
analysisResults.SpectralIndices);
}
if (analysisSettings.AnalysisImageSaveBehavior.ShouldSave(analysisResults.Events.Length))
{
string imagePath = segmentSettings.SegmentImageFile.FullName;
const double EventThreshold = 0.1;
var plots = results.Plots ?? new List <Plot>();
Image image = this.DrawSonogram(sonogram, hits, plots, predictedEvents, EventThreshold);
image.Save(imagePath);
analysisResults.ImageFile = segmentSettings.SegmentImageFile;
// draw a fancy high res index image
// IF indices aren't used, no image is drawn.
if (lazyIndices.IsValueCreated)
{
this.DrawLongDurationSpectrogram(
segmentSettings.SegmentOutputDirectory,
recording.BaseName,
results.ScoreTrack,
lazyIndices.Value,
acousticIndicesConfig.HighResolutionIndices);
}
}
return(analysisResults);
}
