daisysp::Oscillator Class Reference

#include <oscillator.h>

Public Types
enum	{   WAVE_SIN , WAVE_TRI , WAVE_SAW , WAVE_RAMP ,   WAVE_SQUARE , WAVE_POLYBLEP_TRI , WAVE_POLYBLEP_SAW , WAVE_POLYBLEP_SQUARE ,   WAVE_LAST }

Public Member Functions
void	Init (float sample_rate)
void	SetFreq (const float f)
void	SetAmp (const float a)
void	SetWaveform (const uint8_t wf)
void	SetPw (const float pw)
bool	IsEOR ()
bool	IsEOC ()
bool	IsRising ()
bool	IsFalling ()
float	Process ()
void	PhaseAdd (float _phase)
void	Reset (float _phase=0.0f)

Detailed Description

Synthesis of several waveforms, including polyBLEP bandlimited waveforms.

Member Enumeration Documentation

anonymous enum

anonymous enum

Choices for output waveforms, POLYBLEP are appropriately labeled. Others are naive forms.

Member Function Documentation

Init()

void daisysp::Oscillator::Init ( float sample_rate )

inline

Initializes the Oscillator

Parameters

sample_rate

- sample rate of the audio engine being run, and the frequency that the Process function will be called.

Defaults:

• freq_ = 100 Hz
• amp_ = 0.5
• waveform_ = sine wave.

IsEOC()

bool daisysp::Oscillator::IsEOC ( )

inline

Returns true if cycle is at end of cycle. Set during call to Process.

IsEOR()

bool daisysp::Oscillator::IsEOR ( )

inline

Returns true if cycle is at end of rise. Set during call to Process.

IsFalling()

bool daisysp::Oscillator::IsFalling ( )

inline

Returns true if cycle falling.

IsRising()

bool daisysp::Oscillator::IsRising ( )

inline

Returns true if cycle rising.

PhaseAdd()

void daisysp::Oscillator::PhaseAdd ( float _phase )

inline

Adds a value 0.0-1.0 (equivalent to 0.0-TWO_PI) to the current phase. Useful for PM and "FM" synthesis.

Process()

float Oscillator::Process

(

)

Processes the waveform to be generated, returning one sample. This should be called once per sample period.

Reset()

void daisysp::Oscillator::Reset ( float _phase = 0.0f )

inline

Resets the phase to the input argument. If no argumeNt is present, it will reset phase to 0.0;

SetAmp()

void daisysp::Oscillator::SetAmp ( const float a )

inline

Sets the amplitude of the waveform.

SetFreq()

void daisysp::Oscillator::SetFreq ( const float f )

inline

Changes the frequency of the Oscillator, and recalculates phase increment.

SetPw()

void daisysp::Oscillator::SetPw ( const float pw )

inline

Sets the pulse width for WAVE_SQUARE and WAVE_POLYBLEP_SQUARE (range 0 - 1)

SetWaveform()

void daisysp::Oscillator::SetWaveform ( const uint8_t wf )

inline

Sets the waveform to be synthesized by the Process() function.

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

• Source/Synthesis/oscillator.h
• Source/Synthesis/oscillator.cpp