sfFDN::SineWave Class Reference

A sine wave oscillator. More...

#include <oscillator.h>

Inheritance diagram for sfFDN::SineWave:

Collaboration diagram for sfFDN::SineWave:

Public Member Functions
	SineWave (float frequency=0.0f, float initial_phase=0.0f)
	Constructs a sine wave oscillator.
void	ResetPhase ()
	Resets the phase of the sine wave oscillator.
void	SetFrequency (float frequency)
	Sets the frequency of the sine wave oscillator.
void	SetAmplitude (float amplitude)
	Sets the amplitude of the sine wave oscillator.
float	GetAmplitude () const
	Returns the amplitude of the sine wave oscillator.
void	SetOffset (float offset)
	Sets the DC offset of the sine wave oscillator.
float	GetOffset () const
	Returns the DC offset of the sine wave oscillator.
void	SetPhaseOffset (float phase_offset)
	Sets the phase offset of the sine wave oscillator.
float	NextOut () const
	Returns the next output sample without advancing the phase.
float	Tick ()
	Advances the phase and returns the next output sample.
void	Generate (std::span< float > output) override
	Fills the output span with generated samples.
void	Multiply (std::span< const float > input, std::span< float > output)
	Multiply input by the sine wave and store the result in output.
void	MultiplyAccumulate (std::span< const float > input, std::span< float > output)
	Multiply input by the sine wave and accumulate the result in output.
Public Member Functions inherited from sfFDN::Generator

Detailed Description

A sine wave oscillator.

The output of the oscillator is given by: output = (sin(phase) * amplitude) + offset

Constructor & Destructor Documentation

SineWave()

sfFDN::SineWave::SineWave	(	float	frequency = 0.0f,
		float	initial_phase = 0.0f )

Constructs a sine wave oscillator.

Parameters

frequency	The frequency of the sine wave in, normalized [0, 1].
initial_phase	The initial phase of the sine wave, normalized [0, 1].

The normalized frequency is obtained by dividing the desired frequency in Hz by the sample rate.

Member Function Documentation

Generate()

void sfFDN::SineWave::Generate ( std::span< float > output )

overridevirtual

Fills the output span with generated samples.

Implements sfFDN::Generator.

GetAmplitude()

float sfFDN::SineWave::GetAmplitude

(

)

const

Returns the amplitude of the sine wave oscillator.

Returns

The amplitude of the sine wave oscillator.

GetOffset()

float sfFDN::SineWave::GetOffset

(

)

const

Returns the DC offset of the sine wave oscillator.

Returns

The DC offset of the sine wave oscillator.

Multiply()

void sfFDN::SineWave::Multiply	(	std::span< const float >	input,
		std::span< float >	output )

Multiply input by the sine wave and store the result in output.

Parameters

input	The input signal to modulate.
output	The output signal to store the result.

MultiplyAccumulate()

void sfFDN::SineWave::MultiplyAccumulate	(	std::span< const float >	input,
		std::span< float >	output )

Multiply input by the sine wave and accumulate the result in output.

Parameters

input	The input signal to modulate.
output	The output signal to store the result.

SetAmplitude()

void sfFDN::SineWave::SetAmplitude

(

float

amplitude

)

Sets the amplitude of the sine wave oscillator.

Parameters

amplitude

The amplitude of the sine wave.

SetFrequency()

void sfFDN::SineWave::SetFrequency

(

float

frequency

)

Sets the frequency of the sine wave oscillator.

Parameters

frequency

The frequency of the sine wave in, normalized [0, 1].

SetOffset()

void sfFDN::SineWave::SetOffset

(

float

offset

)

Sets the DC offset of the sine wave oscillator.

Parameters

offset

The offset of the sine wave.

The offset is a scalar value added to the output of the sine wave.

SetPhaseOffset()

void sfFDN::SineWave::SetPhaseOffset

(

float

phase_offset

)

Sets the phase offset of the sine wave oscillator.

Parameters

phase_offset

The phase offset, normalized [0, 1].

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

• include/sffdn/oscillator.h