Class TButterworthFilter

Description

Hierarchy

Fields

Methods

Properties

Unit

DDspButterworthFilter

Declaration

type TButterworthFilter = class(TIIRFilter)

Description

-$DEFINE Debug

Hierarchy

• TObject
• TFilter
• TIIRFilter
• TButterworthFilter

Overview

Methods

	constructor Create; override;
	procedure SetFilterValues(const AFrequency, AGain : Single); virtual;
	function MagnitudeSquared(Frequency:Double):Double; override;
	function MagnitudeLog10(Frequency:Double):Double; override;
	procedure ResetStates; override;
	procedure Reset; override;
	procedure PushStates; override;
	procedure PopStates; override;
	procedure ResetStatesInt64; override;
	procedure Complex(Frequency: Double; out Real: Double; out Imaginary: Double); override;
	procedure Complex(Frequency: Double; out Real: Single; out Imaginary: Single); override;
	function Imaginary(Frequency: Double): Double; override;
	function Phase(Frequency: Double): Double; override;
	function Real(Frequency: Double): Double; override;

Properties

	property DownsampleAmount : Integer read fDownsamplePow write SetDownsamplePower;
	property DownsampleFaktor : Integer read fDownsampleFak;

Description

Methods

	constructor Create; override;

	procedure SetFilterValues(const AFrequency, AGain : Single); virtual;

	function MagnitudeSquared(Frequency:Double):Double; override;

	function MagnitudeLog10(Frequency:Double):Double; override;

	procedure ResetStates; override;

	procedure Reset; override;

	procedure PushStates; override;

	procedure PopStates; override;

	procedure ResetStatesInt64; override;

	procedure Complex(Frequency: Double; out Real: Double; out Imaginary: Double); override;

	procedure Complex(Frequency: Double; out Real: Single; out Imaginary: Single); override;

	function Imaginary(Frequency: Double): Double; override;

	function Phase(Frequency: Double): Double; override;

	function Real(Frequency: Double): Double; override;

Properties

	property DownsampleAmount : Integer read fDownsamplePow write SetDownsamplePower;

	property DownsampleFaktor : Integer read fDownsampleFak;

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