#include <voice.h>

Collaboration diagram for FluidS::Voice:

[legend]

Public Member Functions
	Voice (Fluid *)

Channel *	get_channel () const

void	voice_start ()

void	off ()

void	init (Sample , Channel , int key, int vel, unsigned id, double tuning)

void	gen_incr (int i, float val)

void	gen_set (int i, float val)

float	gen_get (int gen)

unsigned int	get_id () const

bool	isPlaying ()

void	set_param (int gen, float nrpn_value, int abs)

void	update_param (int gen)

double	GEN (int n)

void	modulate_all ()
	fluid_voice_modulate_all More...

void	modulate (bool _cc, int _ctrl)
	fluid_voice_modulate More...

float	get_lower_boundary_for_attenuation ()

void	check_sample_sanity ()

void	noteoff ()

void	kill_excl ()

int	calculate_hold_decay_frames (int gen_base, int gen_key2base, int is_decay)

void	calculate_gen_pitch ()

bool	RELEASED () const

bool	SUSTAINED () const

bool	PLAYING () const

bool	ON () const

int	SAMPLEMODE () const

void	calcVolEnv (int n, fluid_env_data_t *env_data)

void	write (unsigned n, float out, float reverb, float *chorus)

void	add_mod (const Mod *mod, int mode)

bool	updateAmpInc (unsigned int &nextNewAmpInc, std::map< int, qreal >::iterator &curSample2AmpInc, qreal &dsp_amp_incr, unsigned int &dsp_i)

int	dsp_float_interpolate_none (unsigned)

int	dsp_float_interpolate_linear (unsigned)

int	dsp_float_interpolate_4th_order (unsigned)

int	dsp_float_interpolate_7th_order (unsigned)

Static Public Member Functions
static void	dsp_float_config ()

Public Attributes
unsigned int	id

unsigned char	status

unsigned char	chan

unsigned char	key

unsigned char	vel

Channel *	channel

Generator	gen [GEN_LAST]

Mod	mod [FLUID_NUM_MOD]

int	mod_count

bool	has_looped

Sample *	sample

int	check_sample_sanity_flag

unsigned int	ticks

float	amp

Phase	phase

float	phase_incr

qreal	amp_incr

std::vector< float >	dsp_buf

float	pitch

float	attenuation

float	min_attenuation_cB

float	root_pitch

float	root_pitch_hz

int	start

int	end

int	loopstart

int	loopend

fluid_env_data_t	volenv_data [FLUID_VOICE_ENVLAST]

unsigned int	volenv_count

int	volenv_section

std::map< int, qreal >	Sample2AmpInc

float	volenv_val

float	amplitude_that_reaches_noise_floor_nonloop

float	amplitude_that_reaches_noise_floor_loop

int	positionToTurnOff

fluid_env_data_t	modenv_data [FLUID_VOICE_ENVLAST]

unsigned int	modenv_count

int	modenv_section

float	modenv_val

float	modenv_to_fc

float	modenv_to_pitch

float	modlfo_val

unsigned int	modlfo_delay

unsigned int	modlfo_pos

unsigned int	modlfo_dur

float	modlfo_to_fc

float	modlfo_to_pitch

float	modlfo_to_vol

float	viblfo_val

unsigned int	viblfo_delay

float	viblfo_incr

float	viblfo_to_pitch

float	fres

float	last_fres

float	q_lin

float	filter_gain

float	hist1

float	hist2

int	filter_startup

float	b02

float	b1

float	a1

float	a2

float	b02_incr

float	b1_incr

float	a1_incr

float	a2_incr

int	filter_coeff_incr_count

float	pan

float	amp_left

float	amp_right

float	reverb_send

float	amp_reverb

float	chorus_send

float	amp_chorus

int	interp_method

int	debug

double	ref

Private Member Functions
void	effects (int startBufIdx, int count, float out, float effect1, float *effect2)

bool	generateDataForDSPChain (unsigned frames)

std::tuple< unsigned, bool >	interpolateGeneratedDSPData (unsigned n)

Private Attributes
Fluid *	_fluid

double	_noteTuning

unsigned	_cachedFrames = 0

unsigned	_initialCacheFrames = 0

std::vector< float >	_cacheOut

std::vector< float >	_cacheReverb

std::vector< float >	_cacheChorus

Static Private Attributes
static float	interp_coeff_linear [FLUID_INTERP_MAX][2]

static float	interp_coeff [FLUID_INTERP_MAX][4]

static float	sinc_table7 [FLUID_INTERP_MAX][7]

Constructor & Destructor Documentation

◆ Voice()

Voice::Voice ( Fluid * f )

Member Function Documentation

◆ add_mod()

void Voice::add_mod	(	const Mod *	mod,
		int	mode
	)

◆ calculate_gen_pitch()

void Voice::calculate_gen_pitch ( )

◆ calculate_hold_decay_frames()

int Voice::calculate_hold_decay_frames	(	int	gen_base,
		int	gen_key2base,
		int	is_decay
	)

◆ calcVolEnv()

void Voice::calcVolEnv	(	int	n,
		fluid_env_data_t *	env_data
	)

inline

◆ check_sample_sanity()

void Voice::check_sample_sanity ( )

◆ dsp_float_config()

void Voice::dsp_float_config ( )

static

◆ dsp_float_interpolate_4th_order()

int Voice::dsp_float_interpolate_4th_order ( unsigned n )

◆ dsp_float_interpolate_7th_order()

int Voice::dsp_float_interpolate_7th_order ( unsigned n )

◆ dsp_float_interpolate_linear()

int Voice::dsp_float_interpolate_linear ( unsigned n )

◆ dsp_float_interpolate_none()

int Voice::dsp_float_interpolate_none ( unsigned n )

◆ effects()

void Voice::effects	(	int	startBufIdx,
		int	count,
		float *	out,
		float *	effect1,
		float *	effect2
	)

private

◆ GEN()

double FluidS::Voice::GEN ( int n )

inline

◆ gen_get()

float Voice::gen_get ( int gen )

◆ gen_incr()

void Voice::gen_incr	(	int	i,
		float	val
	)

◆ gen_set()

void Voice::gen_set	(	int	i,
		float	val
	)

◆ generateDataForDSPChain()

bool Voice::generateDataForDSPChain ( unsigned frames )

private

◆ get_channel()

Channel* FluidS::Voice::get_channel ( ) const

inline

◆ get_id()

unsigned int FluidS::Voice::get_id ( ) const

inline

◆ get_lower_boundary_for_attenuation()

float Voice::get_lower_boundary_for_attenuation ( )

◆ init()

void FluidS::Voice::init	(	Sample *	,
		Channel *	,
		int	key,
		int	vel,
		unsigned	id,
		double	tuning
	)

◆ interpolateGeneratedDSPData()

std::tuple< unsigned, bool > Voice::interpolateGeneratedDSPData ( unsigned n )

private

◆ isPlaying()

bool FluidS::Voice::isPlaying ( )

inline

◆ kill_excl()

void Voice::kill_excl ( )

◆ modulate()

void Voice::modulate	(	bool	_cc,
		int	_ctrl
	)

fluid_voice_modulate

In this implementation, I want to make sure that all controllers are event based: the parameter values of the DSP algorithm should only be updates when a controller event arrived and not at every iteration of the audio cycle (which would probably be feasible if the synth was made in silicon).

The update is done in three steps:

first, we look for all the modulators that have the changed controller as a source. This will yield a list of generators that will be changed because of the controller event.
For every changed generator, calculate its new value. This is the sum of its original value plus the values of al the attached modulators.
For every changed generator, convert its value to the correct unit of the corresponding DSP parameter

◆ modulate_all()

void Voice::modulate_all ( )

fluid_voice_modulate_all

Update all the modulators. This function is called after a ALL_CTRL_OFF MIDI message has been received (CC 121).

◆ noteoff()

void Voice::noteoff ( )

◆ off()

void Voice::off ( )

◆ ON()

bool FluidS::Voice::ON ( ) const

inline

◆ PLAYING()

bool FluidS::Voice::PLAYING ( ) const

inline

◆ RELEASED()

bool FluidS::Voice::RELEASED ( ) const

inline

◆ SAMPLEMODE()

int FluidS::Voice::SAMPLEMODE ( ) const

inline

◆ set_param()

void Voice::set_param	(	int	gen,
		float	nrpn_value,
		int	abs
	)

◆ SUSTAINED()

bool FluidS::Voice::SUSTAINED ( ) const

inline

◆ update_param()

void Voice::update_param ( int gen )

◆ updateAmpInc()

bool Voice::updateAmpInc	(	unsigned int &	nextNewAmpInc,
		std::map< int, qreal >::iterator &	curSample2AmpInc,
		qreal &	dsp_amp_incr,
		unsigned int &	dsp_i
	)

inline

◆ voice_start()

void Voice::voice_start ( )

◆ write()

void Voice::write	(	unsigned	n,
		float *	out,
		float *	reverb,
		float *	chorus
	)

Member Data Documentation

◆ _cacheChorus

std::vector<float> FluidS::Voice::_cacheChorus

private

◆ _cachedFrames

unsigned FluidS::Voice::_cachedFrames = 0

private

◆ _cacheOut

std::vector<float> FluidS::Voice::_cacheOut

private

◆ _cacheReverb

std::vector<float> FluidS::Voice::_cacheReverb

private

◆ _fluid

Fluid* FluidS::Voice::_fluid

private

◆ _initialCacheFrames

unsigned FluidS::Voice::_initialCacheFrames = 0

private

◆ _noteTuning

double FluidS::Voice::_noteTuning

private

◆ a1

float FluidS::Voice::a1

◆ a1_incr

float FluidS::Voice::a1_incr

◆ a2

float FluidS::Voice::a2

◆ a2_incr

float FluidS::Voice::a2_incr

◆ amp

float FluidS::Voice::amp

◆ amp_chorus

float FluidS::Voice::amp_chorus

◆ amp_incr

qreal FluidS::Voice::amp_incr

◆ amp_left

float FluidS::Voice::amp_left

◆ amp_reverb

float FluidS::Voice::amp_reverb

◆ amp_right

float FluidS::Voice::amp_right

◆ amplitude_that_reaches_noise_floor_loop

float FluidS::Voice::amplitude_that_reaches_noise_floor_loop

◆ amplitude_that_reaches_noise_floor_nonloop

float FluidS::Voice::amplitude_that_reaches_noise_floor_nonloop

◆ attenuation

float FluidS::Voice::attenuation

◆ b02

float FluidS::Voice::b02

◆ b02_incr

float FluidS::Voice::b02_incr

◆ b1

float FluidS::Voice::b1

◆ b1_incr

float FluidS::Voice::b1_incr

◆ chan

unsigned char FluidS::Voice::chan

◆ channel

Channel* FluidS::Voice::channel

◆ check_sample_sanity_flag

int FluidS::Voice::check_sample_sanity_flag

◆ chorus_send

float FluidS::Voice::chorus_send

◆ debug

int FluidS::Voice::debug

◆ dsp_buf

std::vector<float> FluidS::Voice::dsp_buf

◆ end

int FluidS::Voice::end

◆ filter_coeff_incr_count

int FluidS::Voice::filter_coeff_incr_count

◆ filter_gain

float FluidS::Voice::filter_gain

◆ filter_startup

int FluidS::Voice::filter_startup

◆ fres

float FluidS::Voice::fres

◆ gen

Generator FluidS::Voice::gen[GEN_LAST]

◆ has_looped

bool FluidS::Voice::has_looped

◆ hist1

float FluidS::Voice::hist1

◆ hist2

float FluidS::Voice::hist2

◆ id

unsigned int FluidS::Voice::id

◆ interp_coeff

float Voice::interp_coeff

staticprivate

◆ interp_coeff_linear

float Voice::interp_coeff_linear

staticprivate

◆ interp_method

int FluidS::Voice::interp_method

◆ key

unsigned char FluidS::Voice::key

◆ last_fres

float FluidS::Voice::last_fres

◆ loopend

int FluidS::Voice::loopend

◆ loopstart

int FluidS::Voice::loopstart

◆ min_attenuation_cB

float FluidS::Voice::min_attenuation_cB

◆ mod

Mod FluidS::Voice::mod[FLUID_NUM_MOD]

◆ mod_count

int FluidS::Voice::mod_count

◆ modenv_count

unsigned int FluidS::Voice::modenv_count

◆ modenv_data

fluid_env_data_t FluidS::Voice::modenv_data[FLUID_VOICE_ENVLAST]

◆ modenv_section

int FluidS::Voice::modenv_section

◆ modenv_to_fc

float FluidS::Voice::modenv_to_fc

◆ modenv_to_pitch

float FluidS::Voice::modenv_to_pitch

◆ modenv_val

float FluidS::Voice::modenv_val

◆ modlfo_delay

unsigned int FluidS::Voice::modlfo_delay

◆ modlfo_dur

unsigned int FluidS::Voice::modlfo_dur

◆ modlfo_pos

unsigned int FluidS::Voice::modlfo_pos

◆ modlfo_to_fc

float FluidS::Voice::modlfo_to_fc

◆ modlfo_to_pitch

float FluidS::Voice::modlfo_to_pitch

◆ modlfo_to_vol

float FluidS::Voice::modlfo_to_vol

◆ modlfo_val

float FluidS::Voice::modlfo_val

◆ pan

float FluidS::Voice::pan

◆ phase

Phase FluidS::Voice::phase

◆ phase_incr

float FluidS::Voice::phase_incr

◆ pitch

float FluidS::Voice::pitch

◆ positionToTurnOff

int FluidS::Voice::positionToTurnOff

◆ q_lin

float FluidS::Voice::q_lin

◆ ref

double FluidS::Voice::ref

◆ reverb_send

float FluidS::Voice::reverb_send

◆ root_pitch

float FluidS::Voice::root_pitch

◆ root_pitch_hz

float FluidS::Voice::root_pitch_hz

◆ sample

Sample* FluidS::Voice::sample

◆ Sample2AmpInc

std::map<int, qreal> FluidS::Voice::Sample2AmpInc

◆ sinc_table7

float Voice::sinc_table7

staticprivate

◆ start

int FluidS::Voice::start

◆ status

unsigned char FluidS::Voice::status

◆ ticks

unsigned int FluidS::Voice::ticks

◆ vel

unsigned char FluidS::Voice::vel

◆ viblfo_delay

unsigned int FluidS::Voice::viblfo_delay

◆ viblfo_incr

float FluidS::Voice::viblfo_incr

◆ viblfo_to_pitch

float FluidS::Voice::viblfo_to_pitch

◆ viblfo_val

float FluidS::Voice::viblfo_val

◆ volenv_count

unsigned int FluidS::Voice::volenv_count

◆ volenv_data

fluid_env_data_t FluidS::Voice::volenv_data[FLUID_VOICE_ENVLAST]

◆ volenv_section

int FluidS::Voice::volenv_section

◆ volenv_val

float FluidS::Voice::volenv_val

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

fluid/voice.h
fluid/dsp.cpp
fluid/voice.cpp

Public Member Functions

Static Public Member Functions

Public Attributes

Private Member Functions

Private Attributes

Static Private Attributes

Constructor & Destructor Documentation

◆ Voice()

Member Function Documentation

◆ add_mod()

◆ calculate_gen_pitch()

◆ calculate_hold_decay_frames()

◆ calcVolEnv()

◆ check_sample_sanity()

◆ dsp_float_config()

◆ dsp_float_interpolate_4th_order()

◆ dsp_float_interpolate_7th_order()

◆ dsp_float_interpolate_linear()

◆ dsp_float_interpolate_none()

◆ effects()

◆ GEN()

◆ gen_get()

◆ gen_incr()

◆ gen_set()

◆ generateDataForDSPChain()

◆ get_channel()

◆ get_id()

◆ get_lower_boundary_for_attenuation()

◆ init()

◆ interpolateGeneratedDSPData()

◆ isPlaying()

◆ kill_excl()

◆ modulate()

◆ modulate_all()

◆ noteoff()

◆ off()

◆ ON()

◆ PLAYING()

◆ RELEASED()

◆ SAMPLEMODE()

◆ set_param()

◆ SUSTAINED()

◆ update_param()

◆ updateAmpInc()

◆ voice_start()

◆ write()

Member Data Documentation

◆ _cacheChorus

◆ _cachedFrames

◆ _cacheOut

◆ _cacheReverb

◆ _fluid

◆ _initialCacheFrames

◆ _noteTuning

◆ a1

◆ a1_incr

◆ a2

◆ a2_incr

◆ amp

◆ amp_chorus

◆ amp_incr

◆ amp_left

◆ amp_reverb

◆ amp_right

◆ amplitude_that_reaches_noise_floor_loop

◆ amplitude_that_reaches_noise_floor_nonloop

◆ attenuation

◆ b02

◆ b02_incr

◆ b1

◆ b1_incr

◆ chan

◆ channel

◆ check_sample_sanity_flag

◆ chorus_send

◆ debug

◆ dsp_buf

◆ end

◆ filter_coeff_incr_count

◆ filter_gain