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> Unreal Engine API Reference > Runtime > SignalProcessing > DSP > ISpectrumBandExtractor

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ISpectrumBandExtractor

Interface for spectrum band extractors.

Windows

MacOS

Linux

References

Module	SignalProcessing
Header	/Engine/Source/Runtime/SignalProcessing/Public/DSP/SpectrumAnalyzer.h
Include	#include "DSP/SpectrumAnalyzer.h"

Syntax

class ISpectrumBandExtractor

Remarks

Interface for spectrum band extractors.

The SpectrumBandExtractor allows for band information to be maintained across multiple calls to retrieve bands values. By maintaining band information across multiple calls, some intermediate values can be cached to speed up the operation.

Destructors

	Name	Description
	~ISpectrumBandExtractor()

Functions

	Name	Description
void	AddBand ( const FBandSettings& InSettings )	Adds a band to extract based on the given settings.
TUniquePtr< ...	CreateSpectrumBandExtractor ( const FSpectrumBandExtractorSetting... )	Creates a ISpectrumBandExtractor.
void	ExtractBands ( const AlignedFloatBuffer& InComple..., double InTimestamp, TArray< float >& OutValues )	Extract the bands from a complex frequency buffer.
int32	GetNumBands()	Returns the total number of bands.
void	RemoveAllBands()	Removes all added bands.
void	SetSettings ( const FSpectrumBandExtractorSetting... )	Sets and updates the settings for the band extractor
void	SetSpectrumSettings ( const FSpectrumBandExtractorSpectru... )	Set the settings and update cached internal values if needed

Classes

	Name	Description
	FBandSettings	Settings for a single band

Enums

	Name	Description
	EBandType

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