dsp::waveform_oscillator< SIZE_BITS > Struct Template Reference

#include <osc.h>

Inheritance diagram for dsp::waveform_oscillator< SIZE_BITS >:

Public Types
enum	{ SIZE = 1 << SIZE_BITS , MASK = SIZE - 1 , SCALE = 1 << (32 - SIZE_BITS) }

Public Member Functions
	waveform_oscillator ()
float	get ()
	Get the value from single oscillator at current position.
float	get_phaseshifted (uint32_t shift, float mix)
	Add/substract two phase-shifted values.
float	get_phaseshifted2 (uint32_t shift, int32_t gshift, float mix)
	Add/substract two phase-shifted values.
float	get_phasedist (uint32_t sync, uint32_t shift, float mix)
	Get the value of a hard synced osc (65536 = 1:1 ratio).
void	advance ()
	One step.
Public Member Functions inherited from dsp::simple_oscillator
void	reset ()
	Reset oscillator phase to zero.
void	set_freq (float freq, float sr)
	Set phase delta based on oscillator frequency and sample rate.
void	set_freq_odsr (float freq, double odsr)
	Set phase delta based on oscillator frequency and inverse of sample rate.
void	step ()
	Make one phase increment.
float	get ()
	Make one phase increment and return a value from -0.5 to 0.5.

Public Attributes
float *	waveform
Public Attributes inherited from dsp::simple_oscillator
uint32_t	phase
	Phase (from 0 to 0xFFFFFFFF).
uint32_t	phasedelta
	Per-sample phase delta (phase increment), equal to 2^32*freq/sr.

Detailed Description

template<int SIZE_BITS>
struct dsp::waveform_oscillator< SIZE_BITS >

Simple table-based lerping oscillator. Uses waveform of size 2^SIZE_BITS. Combine with waveform_family if bandlimited waveforms are needed. Because of linear interpolation, it's usually a good idea to use large tables (2048-4096 points), otherwise aliasing may be produced.

Member Enumeration Documentation

anonymous enum

template<int SIZE_BITS>

anonymous enum

Enumerator
SIZE
MASK
SCALE

Constructor & Destructor Documentation

waveform_oscillator()

template<int SIZE_BITS>

dsp::waveform_oscillator< SIZE_BITS >::waveform_oscillator ( )

inline

Member Function Documentation

advance()

template<int SIZE_BITS>

void dsp::waveform_oscillator< SIZE_BITS >::advance ( )

inline

One step.

get()

template<int SIZE_BITS>

float dsp::waveform_oscillator< SIZE_BITS >::get ( )

inline

Get the value from single oscillator at current position.

get_phasedist()

template<int SIZE_BITS>

float dsp::waveform_oscillator< SIZE_BITS >::get_phasedist ( uint32_t sync, uint32_t shift, float mix )

inline

Get the value of a hard synced osc (65536 = 1:1 ratio).

get_phaseshifted()

template<int SIZE_BITS>

float dsp::waveform_oscillator< SIZE_BITS >::get_phaseshifted ( uint32_t shift, float mix )

inline

Add/substract two phase-shifted values.

get_phaseshifted2()

template<int SIZE_BITS>

float dsp::waveform_oscillator< SIZE_BITS >::get_phaseshifted2 ( uint32_t shift, int32_t gshift, float mix )

inline

Add/substract two phase-shifted values.

Member Data Documentation

waveform

template<int SIZE_BITS>

float* dsp::waveform_oscillator< SIZE_BITS >::waveform

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

• /home/runner/work/lmms-fork/lmms-fork/plugins/LadspaEffect/calf/veal/src/calf/osc.h