Class CompositeEvent
Inheritance
CompositeEvent
Assembly: AudioAnalysisTools.dll
public class CompositeEvent : SpectralEvent, IComparable<ResultBase>, IComparable, IDrawableEvent, ISpectralEvent, ISpectralBand, ITemporalEvent, IInstantEvent
Constructors
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Declaration
public CompositeEvent(List<SpectralEvent> events)
Parameters
Properties
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Declaration
public int ComponentCount { get; }
Property Value
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Declaration
public List<EventCommon> ComponentEvents { get; set; }
Property Value
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Declaration
public override double EventEndSeconds { get; }
Property Value
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Declaration
public override double EventStartSeconds { get; }
Property Value
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Declaration
public override double HighFrequencyHertz { get; }
Property Value
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Declaration
public override double LowFrequencyHertz { get; }
Property Value
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Declaration
public override double Score { get; }
Property Value
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Declaration
public override double ScoreNormalized { get; }
Property Value
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Declaration
public IEnumerable<ITrack> Tracks { get; }
Property Value
Methods
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Declaration
public double CalculatePeriodicity()
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Combines overlapping events in the passed List of events and returns a reduced list.
Declaration
public static List<EventCommon> CombineOverlappingEvents(List<EventCommon> events)
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Combines events that have similar bottom and top frequency bounds and whose start times are within the passed time range.
NOTE: Proximal means (1) that the event starts are close to one another and (2) the events occupy a SIMILAR frequency band.
NOTE: SIMILAR frequency band means the difference between two top Hertz values and the two low Hertz values are less than hertzDifference.
NOTE: This method is used to combine events that are likely to be a syllable sequence within the same call.
NOTE: Allow twice the tolerance for the upper Hertz difference because upper bounds tend to be more flexible. This is may need to be reversed if it proves to be unhelpful.
Declaration
public static List<EventCommon> CombineProximalEvents(List<SpectralEvent> events, TimeSpan startDifference, int hertzDifference)
Parameters
Returns
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Combines events that are possible stacked harmonics or formants.
Two conditions apply:
(1) the events are coincident (have similar start and end times)
(2) the events are stacked (their minima and maxima are within the passed frequency gap).
NOTE: The difference between this method and CombineProximalEvents() is that stacked events should have similar start AND similar end times.
Having similar start and end times means the events are "stacked" (like pancakes!) in the spectrogram.
How closely stacked is determined by the hertzDifference argument. Typicaly, the formant spacing is not large, ~100-200Hz.
Declaration
public static List<EventCommon> CombineStackedEvents(List<SpectralEvent> events, TimeSpan timeDifference, int hertzDifference)
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Merges two spectral events into one event.
Declaration
public static CompositeEvent CombineTwoEvents(SpectralEvent e1, SpectralEvent e2)
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Combines events that are possible stacked harmonics or formants.
Two conditions apply:
(1) the events are coincident (have similar start and end times)
(2) the events are stacked (their minima and maxima are within the passed frequency gap).
NOTE: The difference between this method and CombineProximalEvents() is that stacked events should have similar start AND similar end times.
Having similar start and end times means the events are "stacked" (like pancakes!) in the spectrogram.
How closely stacked is determined by the hertzDifference argument. Typicaly, the formant spacing is not large, ~100-200Hz.
Declaration
public static List<EventCommon> CombineVerticalEvents(List<SpectralEvent> events, TimeSpan timeDifference, int hertzDifference)
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Draw(IImageProcessingContext, EventRenderingOptions)
Declaration
public override void Draw(IImageProcessingContext graphics, EventRenderingOptions options)
Parameters
| Type |
Name |
Description |
| SixLabors.ImageSharp.Processing.IImageProcessingContext |
graphics |
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| EventRenderingOptions |
options |
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Overrides
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Declaration
public static (SpectralEvent EvAi, SpectralEvent EvBj) EnclosedEvents(SpectralEvent a, SpectralEvent b)
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Determines if two events overlap in frequency.
Declaration
public static bool EventsOverlapInFrequency(SpectralEvent event1, SpectralEvent event2)
Parameters
Returns
| Type |
Description |
| Boolean |
true if events overlap.
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Determines if two events overlap in time.
Declaration
public static bool EventsOverlapInTime(SpectralEvent event1, SpectralEvent event2)
Parameters
Returns
| Type |
Description |
| Boolean |
true if events overlap.
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Declaration
public static SpectralEvent OverlapsEventInList(SpectralEvent anEvent, List<SpectralEvent> events)
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Removes from a list of events, those events that are enclosed by another event in the list.
Returns a reduced list.
Declaration
public static List<EventCommon> RemoveEnclosedEvents(List<EventCommon> events)
Parameters
Returns
Implements
Extension Methods