HephAudio v3.0.6
A cross-platform C++ library for recording, playing, and processing audio on Windows, Android, Linux, iOS, and macOS.
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HephAudio::Tremolo Class Reference

changes the volume of the audio data periodically and mixes the result with the input signal. More...

#include <Tremolo.h>

Inheritance diagram for HephAudio::Tremolo:
HephAudio::ModulationEffect HephAudio::DoubleBufferedAudioEffect HephAudio::AudioEffect

Public Member Functions

 Tremolo ()
 
 Tremolo (double depth, const Oscillator &lfo)
 
virtual ~Tremolo ()=default
 
virtual std::string Name () const override
 
virtual void Process (AudioBuffer &buffer, size_t startIndex, size_t frameCount) override
 
virtual void Process (AudioBuffer &buffer)
 
virtual void Process (AudioBuffer &buffer, size_t startIndex)
 
- Public Member Functions inherited from HephAudio::ModulationEffect
virtual ~ModulationEffect ()=default
 
virtual void SetOscillator (const Oscillator &lfo)
 
virtual double GetDepth () const
 
virtual void SetDepth (double depth)
 
- Public Member Functions inherited from HephAudio::DoubleBufferedAudioEffect
virtual ~DoubleBufferedAudioEffect ()=default
 
- Public Member Functions inherited from HephAudio::AudioEffect
virtual ~AudioEffect ()=default
 
virtual bool HasMTSupport () const
 
virtual bool HasRTSupport () const
 
virtual size_t GetThreadCount () const
 
virtual void SetThreadCount (size_t threadCount)
 
virtual size_t CalculateRequiredFrameCount (size_t outputFrameCount, const AudioFormatInfo &formatInfo) const
 
virtual size_t CalculateOutputFrameCount (const AudioBuffer &buffer) const
 

Protected Member Functions

virtual void ProcessST (const AudioBuffer &inputBuffer, AudioBuffer &outputBuffer, size_t startIndex, size_t frameCount) override
 
- Protected Member Functions inherited from HephAudio::ModulationEffect
 ModulationEffect ()
 
 ModulationEffect (double depth, const Oscillator &lfo)
 
- Protected Member Functions inherited from HephAudio::DoubleBufferedAudioEffect
 DoubleBufferedAudioEffect ()
 
- Protected Member Functions inherited from HephAudio::AudioEffect
 AudioEffect ()
 
virtual void ProcessMT (const AudioBuffer &inputBuffer, AudioBuffer &outputBuffer, size_t startIndex, size_t frameCount)
 

Additional Inherited Members

- Protected Attributes inherited from HephAudio::ModulationEffect
Heph::DoubleBuffer lfoBuffer
 
size_t lfoIndex
 
double depth
 
- Protected Attributes inherited from HephAudio::AudioEffect
size_t threadCount
 

Detailed Description

changes the volume of the audio data periodically and mixes the result with the input signal.

Constructor & Destructor Documentation

◆ Tremolo() [1/2]

HephAudio::Tremolo::Tremolo ( )

creates a new instance and initializes it with default values.

◆ Tremolo() [2/2]

HephAudio::Tremolo::Tremolo ( double depth,
const Oscillator & lfo )

creates a new instance and initializes it with the provided values.

Parameters
depthcontrols the dry/wet mix ratio. Ranges between 0 and 1.
lfolow-frequency oscillator.

◆ ~Tremolo()

virtual HephAudio::Tremolo::~Tremolo ( )
virtualdefault

releases the resources and destroys the instance.

Member Function Documentation

◆ Name()

virtual std::string HephAudio::Tremolo::Name ( ) const
overridevirtual

gets the name of the audio effect.

Implements HephAudio::AudioEffect.

◆ Process() [1/3]

virtual void HephAudio::Tremolo::Process ( AudioBuffer & buffer,
size_t startIndex,
size_t frameCount )
overridevirtual

Applies the effect.

Parameters
buffercontains the audio data which will be processed.
startIndexindex of the first audio frame to process.
frameCountnumber of frames to process.

Reimplemented from HephAudio::ModulationEffect.

◆ ProcessST()

virtual void HephAudio::Tremolo::ProcessST ( const AudioBuffer & inputBuffer,
AudioBuffer & outputBuffer,
size_t startIndex,
size_t frameCount )
overrideprotectedvirtual

applies the effect using single thread.

Parameters
inputBuffercontains the dry data.
outputBuffercontains the wet data.
startIndexindex of the first sample to process.
frameCountnumber of frames to process.

Implements HephAudio::AudioEffect.

◆ Process() [2/3]

virtual void HephAudio::AudioEffect::Process ( AudioBuffer & buffer)
virtual

Applies the effect.

Parameters
buffercontains the audio data which will be processed.

Reimplemented from HephAudio::ModulationEffect.

◆ Process() [3/3]

virtual void HephAudio::AudioEffect::Process ( AudioBuffer & buffer,
size_t startIndex )
virtual

Applies the effect.

Parameters
buffercontains the audio data which will be processed.
startIndexindex of the first audio frame to process.

Reimplemented from HephAudio::ModulationEffect.