OpenShot Audio Library | OpenShotAudio 0.3.2
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juce::dsp::StateVariableFilter::Parameters< NumericType > Struct Template Reference

#include <juce_StateVariableFilter.h>

Inheritance diagram for juce::dsp::StateVariableFilter::Parameters< NumericType >:
juce::dsp::ProcessorState juce::ReferenceCountedObject

Public Types

enum class  Type { lowPass , bandPass , highPass }
 
using Ptr = ReferenceCountedObjectPtr< Parameters >
 
- Public Types inherited from juce::dsp::ProcessorState
using Ptr = ReferenceCountedObjectPtr< ProcessorState >
 

Public Member Functions

void setCutOffFrequency (double sampleRate, NumericType frequency, NumericType resonance=static_cast< NumericType >(1.0/MathConstants< double >::sqrt2)) noexcept
 
 Parameters (const Parameters &o)
 
Parametersoperator= (const Parameters &o) noexcept
 
- Public Member Functions inherited from juce::ReferenceCountedObject
void incReferenceCount () noexcept
 
void decReferenceCount () noexcept
 
bool decReferenceCountWithoutDeleting () noexcept
 
int getReferenceCount () const noexcept
 

Public Attributes

Type type = Type::lowPass
 
NumericType g = static_cast<NumericType> (std::tan (MathConstants<double>::pi * 200.0 / 44100.0))
 
NumericType R2 = static_cast<NumericType> (MathConstants<double>::sqrt2)
 
NumericType h = static_cast<NumericType> (1.0 / (1.0 + R2 * g + g * g))
 

Additional Inherited Members

- Protected Member Functions inherited from juce::ReferenceCountedObject
 ReferenceCountedObject ()=default
 
 ReferenceCountedObject (const ReferenceCountedObject &) noexcept
 
 ReferenceCountedObject (ReferenceCountedObject &&) noexcept
 
ReferenceCountedObjectoperator= (const ReferenceCountedObject &) noexcept
 
ReferenceCountedObjectoperator= (ReferenceCountedObject &&) noexcept
 
virtual ~ReferenceCountedObject ()
 
void resetReferenceCount () noexcept
 

Detailed Description

template<typename NumericType>
struct juce::dsp::StateVariableFilter::Parameters< NumericType >

Structure used for the state variable filter parameters.

Definition at line 191 of file juce_StateVariableFilter.h.

Member Typedef Documentation

◆ Ptr

The Coefficients structure is ref-counted, so this is a handy type that can be used as a pointer to one.

Definition at line 227 of file juce_StateVariableFilter.h.

Member Enumeration Documentation

◆ Type

template<typename NumericType >
enum class juce::dsp::StateVariableFilter::Parameters::Type
strong

Definition at line 194 of file juce_StateVariableFilter.h.

Constructor & Destructor Documentation

◆ Parameters()

template<typename NumericType >
juce::dsp::StateVariableFilter::Parameters< NumericType >::Parameters ( const Parameters< NumericType > &  o)
inline

Definition at line 231 of file juce_StateVariableFilter.h.

Member Function Documentation

◆ operator=()

template<typename NumericType >
Parameters & juce::dsp::StateVariableFilter::Parameters< NumericType >::operator= ( const Parameters< NumericType > &  o)
inlinenoexcept

Definition at line 232 of file juce_StateVariableFilter.h.

◆ setCutOffFrequency()

template<typename NumericType >
void juce::dsp::StateVariableFilter::Parameters< NumericType >::setCutOffFrequency ( double  sampleRate,
NumericType  frequency,
NumericType  resonance = static_cast<NumericType> (1.0 / MathConstants<double>::sqrt2) 
)
inlinenoexcept

Sets the cutoff frequency and resonance of the IIR filter.

Note: The bandwidth of the resonance increases with the value of the parameter. To have a standard 12 dB/octave filter, the value must be set at 1 / sqrt(2).

Definition at line 211 of file juce_StateVariableFilter.h.

Member Data Documentation

◆ g

template<typename NumericType >
NumericType juce::dsp::StateVariableFilter::Parameters< NumericType >::g = static_cast<NumericType> (std::tan (MathConstants<double>::pi * 200.0 / 44100.0))

Definition at line 235 of file juce_StateVariableFilter.h.

◆ h

template<typename NumericType >
NumericType juce::dsp::StateVariableFilter::Parameters< NumericType >::h = static_cast<NumericType> (1.0 / (1.0 + R2 * g + g * g))

Definition at line 237 of file juce_StateVariableFilter.h.

◆ R2

template<typename NumericType >
NumericType juce::dsp::StateVariableFilter::Parameters< NumericType >::R2 = static_cast<NumericType> (MathConstants<double>::sqrt2)

Definition at line 236 of file juce_StateVariableFilter.h.

◆ type

template<typename NumericType >
Type juce::dsp::StateVariableFilter::Parameters< NumericType >::type = Type::lowPass

The type of the IIR filter

Definition at line 203 of file juce_StateVariableFilter.h.


The documentation for this struct was generated from the following file: