openshot-audio  0.1.7
Public Member Functions | Static Public Member Functions | Public Attributes | List of all members
IIRCoefficients Class Reference

#include <juce_IIRFilter.h>

Public Member Functions

 IIRCoefficients () noexcept
 
 IIRCoefficients (double c1, double c2, double c3, double c4, double c5, double c6) noexcept
 
 IIRCoefficients (const IIRCoefficients &) noexcept
 
IIRCoefficientsoperator= (const IIRCoefficients &) noexcept
 
 ~IIRCoefficients () noexcept
 

Static Public Member Functions

static IIRCoefficients makeLowPass (double sampleRate, double frequency) noexcept
 
static IIRCoefficients makeHighPass (double sampleRate, double frequency) noexcept
 
static IIRCoefficients makeLowShelf (double sampleRate, double cutOffFrequency, double Q, float gainFactor) noexcept
 
static IIRCoefficients makeHighShelf (double sampleRate, double cutOffFrequency, double Q, float gainFactor) noexcept
 
static IIRCoefficients makePeakFilter (double sampleRate, double centreFrequency, double Q, float gainFactor) noexcept
 

Public Attributes

float coefficients [5]
 

Detailed Description

A set of coefficients for use in an IIRFilter object.

See Also
IIRFilter

Constructor & Destructor Documentation

IIRCoefficients::IIRCoefficients ( )
noexcept

Creates a null set of coefficients (which will produce silence).

IIRCoefficients::IIRCoefficients ( double  c1,
double  c2,
double  c3,
double  c4,
double  c5,
double  c6 
)
noexcept

Directly constructs an object from the raw coefficients. Most people will want to use the static methods instead of this, but the constructor is public to allow tinkerers to create their own custom filters!

IIRCoefficients::IIRCoefficients ( const IIRCoefficients other)
noexcept

Creates a copy of another filter.

IIRCoefficients::~IIRCoefficients ( )
noexcept

Destructor.

Member Function Documentation

IIRCoefficients IIRCoefficients::makeHighPass ( double  sampleRate,
double  frequency 
)
staticnoexcept

Returns the coefficients for a high-pass filter.

IIRCoefficients IIRCoefficients::makeHighShelf ( double  sampleRate,
double  cutOffFrequency,
double  Q,
float  gainFactor 
)
staticnoexcept

Returns the coefficients for a high-pass shelf filter with variable Q and gain.

The gain is a scale factor that the high frequencies are multiplied by, so values greater than 1.0 will boost the high frequencies, values less than 1.0 will attenuate them.

IIRCoefficients IIRCoefficients::makeLowPass ( double  sampleRate,
double  frequency 
)
staticnoexcept

Returns the coefficients for a low-pass filter.

IIRCoefficients IIRCoefficients::makeLowShelf ( double  sampleRate,
double  cutOffFrequency,
double  Q,
float  gainFactor 
)
staticnoexcept

Returns the coefficients for a low-pass shelf filter with variable Q and gain.

The gain is a scale factor that the low frequencies are multiplied by, so values greater than 1.0 will boost the low frequencies, values less than 1.0 will attenuate them.

IIRCoefficients IIRCoefficients::makePeakFilter ( double  sampleRate,
double  centreFrequency,
double  Q,
float  gainFactor 
)
staticnoexcept

Returns the coefficients for a peak filter centred around a given frequency, with a variable Q and gain.

The gain is a scale factor that the centre frequencies are multiplied by, so values greater than 1.0 will boost the centre frequencies, values less than 1.0 will attenuate them.

IIRCoefficients & IIRCoefficients::operator= ( const IIRCoefficients other)
noexcept

Creates a copy of another filter.

Member Data Documentation

float IIRCoefficients::coefficients[5]

The raw coefficients. You should leave these numbers alone unless you really know what you're doing.


The documentation for this class was generated from the following files: