OpenShot Audio Library | OpenShotAudio: juce::dsp::WindowingFunction< FloatType > Class Template Reference

OpenShot Audio Library | OpenShotAudio 0.4.0

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Public Types | Public Member Functions | Static Public Member Functions | List of all members
juce::dsp::WindowingFunction< FloatType > Class Template Reference

`#include <juce_Windowing.h>`

## Public Types
enum | WindowingMethod { rectangular = 0 , triangular , hann , hamming , blackman , blackmanHarris , flatTop , kaiser , numWindowingMethods }

## Public Member Functions
| WindowingFunction (size_t size, WindowingMethod, bool normalise=true, FloatType beta=0)
void | fillWindowingTables (size_t size, WindowingMethod type, bool normalise=true, FloatType beta=0) noexcept
void | multiplyWithWindowingTable (FloatType *samples, size_t size) const noexcept

## Static Public Member Functions
static void | fillWindowingTables (FloatType *samples, size_t size, WindowingMethod, bool normalise=true, FloatType beta=0) noexcept
static const char * | getWindowingMethodName (WindowingMethod) noexcept

## Detailed Description

template<typename FloatType>
class juce::dsp::WindowingFunction< FloatType >

A class which provides multiple windowing functions useful for filter design and spectrum analyzers.

The different functions provided here can be used by creating either a WindowingFunction object, or a static function to fill an array with the windowing method samples.

Definition at line 40 of file juce_Windowing.h.

## Member Enumeration Documentation

## ◆ WindowingMethod

template<typename FloatType >

enum juce::dsp::WindowingFunction::WindowingMethod

The windowing methods available.

Definition at line 45 of file juce_Windowing.h.

## Constructor & Destructor Documentation

## ◆ WindowingFunction()

template<typename FloatType >

juce::dsp::WindowingFunction< FloatType >::WindowingFunction | ( | size_t | size,
|  | WindowingMethod | type,
|  | bool | normalise = true,
|  | FloatType | beta = 0 )

This constructor automatically fills a buffer of the specified size using the fillWindowingTables function and the specified arguments.

See also
  fillWindowingTables

Definition at line 37 of file juce_Windowing.cpp.

## Member Function Documentation

## ◆ fillWindowingTables() [1/2]

template<typename FloatType >

void juce::dsp::WindowingFunction< FloatType >::fillWindowingTables | ( | FloatType * | samples,
|  | size_t | size,
|  | WindowingMethod | type,
|  | bool | normalise = true,
|  | FloatType | beta = 0 )
| staticnoexcept

Fills the content of an array with a given windowing method table.

Parameters

  samples | the destination buffer pointer
  size | the size of the destination buffer allocated in the object
  normalise | if the result must be normalised, creating a DC amplitude response of one
  beta | an optional argument useful only for Kaiser's method, which must be positive and sets the properties of the method (bandwidth and attenuation increases with beta)

Definition at line 51 of file juce_Windowing.cpp.

## ◆ fillWindowingTables() [2/2]

template<typename FloatType >

void juce::dsp::WindowingFunction< FloatType >::fillWindowingTables | ( | size_t | size,
|  | WindowingMethod | type,
|  | bool | normalise = true,
|  | FloatType | beta = 0 )
| noexcept

Fills the content of the object array with a given windowing method table.

Parameters

  size | the size of the destination buffer allocated in the object
  type | the type of windowing method being used
  normalise | if the result must be normalised, creating a DC amplitude response of one
  beta | an optional argument useful only for Kaiser's method which must be positive and sets the properties of the method (bandwidth and attenuation increases with beta)

Definition at line 43 of file juce_Windowing.cpp.

## ◆ getWindowingMethodName()

template<typename FloatType >

const char * juce::dsp::WindowingFunction< FloatType >::getWindowingMethodName | ( | WindowingMethod | type | ) |
| staticnoexcept

Returns the name of a given windowing method.

Definition at line 173 of file juce_Windowing.cpp.

## ◆ multiplyWithWindowingTable()

template<typename FloatType >

void juce::dsp::WindowingFunction< FloatType >::multiplyWithWindowingTable | ( | FloatType * | samples,
|  | size_t | size ) const
| noexcept

Multiplies the content of a buffer with the given window.

Definition at line 167 of file juce_Windowing.cpp.

Referenced by juce::dsp::FilterDesign< FloatType >::designFIRLowpassWindowMethod().

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

- juce_Windowing.h
- juce_Windowing.cpp