v1

type AgeGender int32

type FricationInjCoefs int32

type NasalCoefs int32

type NasalSections int32

type OroPharynxCoefs int32

type OroPharynxRegions int32

type OroPharynxSects int32

type ThreeWayJunction int32

type TractCtrl struct {
	GlotPitch float64    `` /* 137-byte string literal not displayed */
	GlotVol   float64    `min:"0" max:"60" desc:"glottal volume (DB?) typically 60 when present and 0 when not, and sometimes 54, 43.5, 42, "`
	AspVol    float64    `min:"0" max:"10" desc:"aspiration volume -- typically 0 when not present and 10 when present"`
	FricVol   float64    `min:"0" max:"24" desc:"fricative volume -- typically 0 or .25 .4, .5, .8 but 24 for ph"`
	FricPos   float64    `min:"1" max:"7" desc:"ficative position -- varies continuously between 1-7"`
	FricCf    float64    `` /* 136-byte string literal not displayed */
	FricBw    float64    `min:"500" max:"4500" desc:"fricative bw seems like a frequency -- common intermediate values are 600, 900, 2000, 2600"`
	Radii     [7]float64 `desc:"Radii 2-8 radius of pharynx vocal tract segment as determined by tongue etc -- typically around 1, ranging .5 - 1.7"`
	Velum     float64    `min:".1" max:"1.5" desc:"velum opening -- 1.5 when fully open, .1 when closed, and .25, .5 intermediates used"`
}

type TractParams struct {
	Temp         float64
	Loss         float64
	MouthCoef    float64
	NoseCoef     float64
	ThroatCutoff float64
	ThroatVol    float64
	VtlOff       float64
	MixOff       float64
	WaveForm     int32
	NoiseMod     bool
}

type VocalTract struct {
	Buf        sound.Wave   `desc:""`
	Volume     float64      `desc:""`
	Balance    float64      `desc:""`
	Duration   float64      `desc:""` // duration of synthesized sound
	Params     TractParams  `desc:""`
	Voice      VoiceParams  `desc:""`
	CurCtrl    TractCtrl    `desc:""`
	PrvCtrl    TractCtrl    `desc:""`
	DeltaCtrl  TractCtrl    `desc:""`
	DeltaMax   TractCtrl    `desc:""`
	PhoneTable etable.Table `desc:""`
	Dictionary etable.Table `desc:""`

	// derived values
	CtrlRate   float64 `desc:""` // 1.0-1000.0 input tables/second (Hz)
	CtrlPeriod int     `desc:""`
	SampleRate int     `desc:""`
	TubeLength float64 `desc:""` // actual length in cm

	CurData TractCtrl `desc:""` // current control data

	// tube and tube coefficients
	Oropharynx      [OroPharynxSectCnt][2][2]float64
	OropharynxCoefs [OroPharynxCoefCnt]float64
	Nasal           [NasalSectCnt][2][2]float64
	NasalCoefs      [NasalCoefCnt]float64
	Alpha           [ThreeWayCnt]float64
	CurPtr          int
	PrvPtr          int

	// memory for frication taps
	FricationTap [FricationInjCoefCnt]float64

	DampingFactor    float64 // calculated
	CrossmixFactor   float64 //  calculated
	BreathFactor     float64
	PrvGlotAmplitude float64

	SynthOutput []float64
	Wave        []float64

	RateConverter         trm.RateConverter
	MouthRadiationFilter  trm.RadiationFilter
	MouthReflectionFilter trm.ReflectionFilter
	NasalRadiationFilter  trm.RadiationFilter
	NasalReflectionFilter trm.ReflectionFilter
	Throat                trm.Throat
	GlottalSource         trm.WavetableGlottalSource
	BandpassFilter        trm.BandpassFilter
	NoiseFilter           trm.NoiseFilter
	NoiseSource           trm.NoiseSource
}

type VoiceParams struct {
	TractLength      float64    `desc:"length of vocal tract - shortest for baby voice, longest for male voice"`
	GlotPulseFallMin float64    `desc:"glottal pulse is the rate at which the vocal folds of the glottis open and close - not sure about FallMin/FallMax"`
	GlotPulseFallMax float64    `desc:"glottal pulse is the rate at which the vocal folds of the glottis open and close - not sure about FallMin/FallMax"`
	GlotPitchRef     float64    `desc:"the pitch of the voice is usually set by the frequency of glottal pulses during vowels or voiced consonants"`
	Breath           float64    `desc:"how much air escapes on each glottal pulse, more for female voices"`
	GlotPulseRise    float64    `desc:"glottal pulse is the rate at which the vocal folds of the glottis open and close - not sure about rise"`
	ApertureRadius   float64    `desc:""`
	NoseRadii        [6]float64 `desc:"fixed nose radii (0 - 3 cm)"`
	NoseRadiusCoef   float64    `desc:"global nose radius coefficient"`
	RadiusCoef       float64    `desc:""`
}