public static EventCommon[] CallAed(BaseSonogram sonogram, AedConfiguration aedConfiguration, TimeSpan segmentStartOffset, TimeSpan segmentDuration)
{
Log.Info("AED start");
var aedOptions = new AedOptions(sonogram.Configuration.NyquistFreq)
{
IntensityThreshold = aedConfiguration.IntensityThreshold,
SmallAreaThreshold = aedConfiguration.SmallAreaThreshold,
DoNoiseRemoval = aedConfiguration.NoiseReductionType == NoiseReductionType.None,
};
if (aedConfiguration.BandpassMinimum.HasValue && aedConfiguration.BandpassMaximum.HasValue)
{
var bandPassFilter =
Tuple.Create(
(double)aedConfiguration.BandpassMinimum.Value,
(double)aedConfiguration.BandpassMaximum.Value);
aedOptions.BandPassFilter = new FSharpOption <Tuple <double, double> >(bandPassFilter);
}
IEnumerable <Oblong> oblongs = AcousticEventDetection.detectEvents(aedOptions, sonogram.Data);
Log.Info("AED finished");
var unitConverters = new UnitConverters(
segmentStartOffset.TotalSeconds,
sonogram.SampleRate,
sonogram.Configuration.WindowSize,
sonogram.Configuration.WindowOverlap);
var events = oblongs.Select(
o =>
{
var blob = new BlobEvent()
{
SegmentDurationSeconds = segmentDuration.TotalSeconds,
Name = "AED Event",
};
unitConverters.SetBounds(blob, o);
if (aedConfiguration.IncludeHitElementsInOutput)
{
o.HitElements
.Select(p => unitConverters.ConvertPointToSpectralPoint(p, 1.0))
.ForEach(sp => blob.Points.Add(sp));
}
return(blob);
});
return(events.ToArray());
}