Class ZoomFocusedSpectrograms

Inheritance
Object
ZoomFocusedSpectrograms
Inherited Members
Namespace: AudioAnalysisTools.LongDurationSpectrograms
Assembly: AudioAnalysisTools.dll
Syntax
public static class ZoomFocusedSpectrograms

Methods

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CompressFrameSpectrogram(Dictionary<String, Double[,]>, TimeSpan, TimeSpan)

Declaration
public static Dictionary<string, double[, ]> CompressFrameSpectrogram(Dictionary<string, double[, ]> spectra, TimeSpan imageScale, TimeSpan defaultTimeScale)
Parameters
Type Name Description
Dictionary<String, Double[,]> spectra
TimeSpan imageScale
TimeSpan defaultTimeScale
Returns
Type Description
Dictionary<String, Double[,]>
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DrawFrameSpectrogramAtScale(LdSpectrogramConfig, IndexGenerationData, TimeSpan, Int32, List<Double[]>, Double[,], TimeSpan, TimeSpan, Int32)

This method can add in the absolute recording start time. However currently disabled.

Declaration
public static Image DrawFrameSpectrogramAtScale(LdSpectrogramConfig config, IndexGenerationData indexGenerationData, TimeSpan startTimeOfData, int compressionFactor, List<double[]> frameData, double[, ] indexData, TimeSpan focalTime, TimeSpan frameScale, int imageWidth)
Parameters
Type Name Description
LdSpectrogramConfig config

v.
IndexGenerationData indexGenerationData

indexGenerationData.
TimeSpan startTimeOfData

startTimeOfData.
Int32 compressionFactor

compressionFactor.
List<Double[]> frameData

frameData.
Double[,] indexData

indexData.
TimeSpan focalTime

focalTime.
TimeSpan frameScale

frameScale.
Int32 imageWidth

imageWidth.
Returns
Type Description
SixLabors.ImageSharp.Image
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DrawIndexSpectrogramAtScale(LdSpectrogramConfig, IndexGenerationData, Dictionary<String, IndexProperties>, TimeSpan, TimeSpan, TimeSpan, Int32, Dictionary<String, Double[,]>, String)

This method can add in absolute time if you want. Currently commented out - see below.

Declaration
public static Image<Rgb24> DrawIndexSpectrogramAtScale(LdSpectrogramConfig config, IndexGenerationData indexGenerationData, Dictionary<string, IndexProperties> indexProperties, TimeSpan focalTime, TimeSpan dataScale, TimeSpan imageScale, int imageWidth, Dictionary<string, double[, ]> spectra, string basename)
Parameters
Type Name Description
LdSpectrogramConfig config
IndexGenerationData indexGenerationData
Dictionary<String, IndexProperties> indexProperties
TimeSpan focalTime
TimeSpan dataScale
TimeSpan imageScale
Int32 imageWidth
Dictionary<String, Double[,]> spectra
String basename
Returns
Type Description
SixLabors.ImageSharp.Image<SixLabors.ImageSharp.PixelFormats.Rgb24>
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DrawStackOfZoomedSpectrograms(DirectoryInfo, DirectoryInfo, AnalysisIoInputDirectory, ZoomParameters, String, TimeSpan, Int32)

Declaration
public static void DrawStackOfZoomedSpectrograms(DirectoryInfo inputDirectory, DirectoryInfo outputDirectory, AnalysisIoInputDirectory io, ZoomParameters common, string analysisTag, TimeSpan focalTime, int imageWidth)
Parameters
Type Name Description
DirectoryInfo inputDirectory
DirectoryInfo outputDirectory
AnalysisIoInputDirectory io
ZoomParameters common
String analysisTag
TimeSpan focalTime
Int32 imageWidth
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DrawStandardSpectrogramInFalseColour(Double[,])

A FALSE-COLOUR VERSION OF DECIBEL SPECTROGRAM Taken and adapted from Spectrogram Image 5 in the method of CLASS Audio2InputForConvCNN.cs:.

Declaration
public static Image<Rgb24> DrawStandardSpectrogramInFalseColour(double[, ] dbSpectrogramData)
Parameters
Type Name Description
Double[,] dbSpectrogramData

the sonogram data (NOT noise reduced).
Returns
Type Description
SixLabors.ImageSharp.Image<SixLabors.ImageSharp.PixelFormats.Rgb24>
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DrawTitleBarOfZoomSpectrogram(String, Int32)

Declaration
public static Image<Rgb24> DrawTitleBarOfZoomSpectrogram(string title, int width)
Parameters
Type Name Description
String title
Int32 width
Returns
Type Description
SixLabors.ImageSharp.Image<SixLabors.ImageSharp.PixelFormats.Rgb24>
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FrameZoomSpectrogram(Image<Rgb24>, Image<Rgb24>, TimeSpan, TimeSpan, TimeSpan, Int32, Int32)

Declaration
public static Image<Rgb24> FrameZoomSpectrogram(Image<Rgb24> bmp1, Image<Rgb24> titleBar, TimeSpan startOffset, TimeSpan xAxisPixelDuration, TimeSpan xAxisTicInterval, int nyquist, int herzInterval)
Parameters
Type Name Description
SixLabors.ImageSharp.Image<SixLabors.ImageSharp.PixelFormats.Rgb24> bmp1
SixLabors.ImageSharp.Image<SixLabors.ImageSharp.PixelFormats.Rgb24> titleBar
TimeSpan startOffset
TimeSpan xAxisPixelDuration
TimeSpan xAxisTicInterval
Int32 nyquist
Int32 herzInterval
Returns
Type Description
SixLabors.ImageSharp.Image<SixLabors.ImageSharp.PixelFormats.Rgb24>
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ReadFrameData(DirectoryInfo, String, TimeSpan, TimeSpan, SpectrogramZoomingConfig, TimeSpan)

Declaration
public static List<double[]> ReadFrameData(DirectoryInfo dataDir, string fileStem, TimeSpan startTime, TimeSpan maxDuration, SpectrogramZoomingConfig zoomingConfig, TimeSpan indexGenerationSegmentDuration)
Parameters
Type Name Description
DirectoryInfo dataDir
String fileStem
TimeSpan startTime
TimeSpan maxDuration
SpectrogramZoomingConfig zoomingConfig
TimeSpan indexGenerationSegmentDuration
Returns
Type Description
List<Double[]>