sbl::dsp::widgets::PolyBlepOsc Class Reference

Detailed Description

Definition at line 48 of file polyblep_osc.hpp.

#include <polyblep_osc.hpp>

Public Member Functions
	PolyBlepOsc ()=default
	Default constructor (Saw waveform).
	PolyBlepOsc (Waveform w)
	Construct with a specific waveform.
void	set_waveform (Waveform w)
	Set active waveform (discrete — no _su suffix)
void	set_pitch_su (float su)
	Set pitch from normalized [0,1] signal unit.
void	set_pulse_width_su (float su)
	Set pulse width from normalized [0,1] signal unit.
void	set_amplitude_su (float su)
	Set output amplitude from normalized [0,1] signal unit.
void	process (float *out, uint16_t frames, const float *fm_mod=nullptr, float fm_depth=0.0f)
	Generate audio samples, optionally with per-sample FM modulation.
void	sync ()
	Hard sync — reset phase to zero.
void	sync (float phase)
	Reset phase to a specific value (0.0–1.0)
uint32_t	phase () const
	Current phase as uint32_t.
float	frequency () const
	Current normalized frequency (freq_hz / sample_rate)

Friends
struct	PolyBlepOscTestAccess
template<uint16_t >
class	sbl::dsp::modules::MorphOsc

Constructor & Destructor Documentation

PolyBlepOsc() [1/2]

sbl::dsp::widgets::PolyBlepOsc::PolyBlepOsc ( )

default

Default constructor (Saw waveform).

Note

All public methods are ISR-safe — bounded computation, no I/O.

PolyBlepOsc() [2/2]

sbl::dsp::widgets::PolyBlepOsc::PolyBlepOsc ( Waveform  w )

inlineexplicit

Construct with a specific waveform.

Definition at line 56 of file polyblep_osc.hpp.

Member Function Documentation

set_waveform()

void sbl::dsp::widgets::PolyBlepOsc::set_waveform ( Waveform  w )

inline

Set active waveform (discrete — no _su suffix)

Definition at line 61 of file polyblep_osc.hpp.

set_pitch_su()

void sbl::dsp::widgets::PolyBlepOsc::set_pitch_su ( float  su )

inline

Set pitch from normalized [0,1] signal unit.

Parameters

su	Unipolar [0,1] — maps to MIDI 24–120 (C1–C9)

Definition at line 69 of file polyblep_osc.hpp.

set_pulse_width_su()

void sbl::dsp::widgets::PolyBlepOsc::set_pulse_width_su ( float  su )

inline

Set pulse width from normalized [0,1] signal unit.

Parameters

su	Unipolar [0,1] — linear map to 0.05–0.95

Definition at line 80 of file polyblep_osc.hpp.

set_amplitude_su()

void sbl::dsp::widgets::PolyBlepOsc::set_amplitude_su ( float  su )

inline

Set output amplitude from normalized [0,1] signal unit.

Parameters

su	Unipolar [0,1] — linear map to amplitude 0–1

Definition at line 90 of file polyblep_osc.hpp.

process()

void sbl::dsp::widgets::PolyBlepOsc::process ( float *  out, uint16_t  frames, const float *  fm_mod = nullptr, float  fm_depth = 0.0f  )

inline

Generate audio samples, optionally with per-sample FM modulation.

When fm_mod is provided, per-sample exponential FM is applied around the stored frequency (set via set_pitch_su / set_frequency): freq = frequency_ * 2^(fm_mod[i] * fm_depth)

Parameters

out	Output buffer (float, [-1.0, 1.0])
frames	Number of samples
fm_mod	FM modulation signal [-1,1] (nullptr = no modulation)
fm_depth	FM depth in octaves (e.g., 1.0 = ±1 octave)

Definition at line 108 of file polyblep_osc.hpp.

References sbl::dsp::math::fast_exp2f().

Referenced by sbl::dsp::modules::MorphOsc< MaxFrames >::process().

sync() [1/2]

void sbl::dsp::widgets::PolyBlepOsc::sync ( )

inline

Hard sync — reset phase to zero.

Definition at line 143 of file polyblep_osc.hpp.

Referenced by sbl::dsp::modules::MorphOsc< MaxFrames >::reset().

sync() [2/2]

void sbl::dsp::widgets::PolyBlepOsc::sync ( float  phase )

inline

Reset phase to a specific value (0.0–1.0)

Definition at line 150 of file polyblep_osc.hpp.

References phase().

phase()

uint32_t sbl::dsp::widgets::PolyBlepOsc::phase ( ) const

inline

Current phase as uint32_t.

Definition at line 156 of file polyblep_osc.hpp.

Referenced by sync().

frequency()

float sbl::dsp::widgets::PolyBlepOsc::frequency ( ) const

inline

Current normalized frequency (freq_hz / sample_rate)

Definition at line 161 of file polyblep_osc.hpp.

Friends And Related Symbol Documentation

PolyBlepOscTestAccess

friend struct PolyBlepOscTestAccess

friend

Definition at line 164 of file polyblep_osc.hpp.

sbl::dsp::modules::MorphOsc

template<uint16_t >

friend class sbl::dsp::modules::MorphOsc

friend

Definition at line 165 of file polyblep_osc.hpp.

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

• src/sbl/dsp/widgets/polyblep_osc.hpp