excite

Documentation

Overview

Package excite provides support for excitation generation from fundamental frequency.

Index

• type PulseExcite
  • func NewPulseExcite(sampleRate, frameShift int) *PulseExcite
  • func (e *PulseExcite) Generate(f0Sequence []float64) []float64
  • func (e *PulseExcite) GenerateOneFrame(f01, f02 float64) []float64

Types

type PulseExcite

type PulseExcite struct {
	SampleRate int
	FrameShift int
	UseGauss   bool
	// contains filtered or unexported fields
}

PulseExcite represents generating excitation signals. if UseGauss is set to true, gaussian random samples are generated for non-voice segments, pseudo random samples otherwise.

func NewPulseExcite

func NewPulseExcite(sampleRate, frameShift int) *PulseExcite

NewPulseExcite returns its instance with sample rate and framshift.

func (*PulseExcite) Generate

func (e *PulseExcite) Generate(f0Sequence []float64) []float64

Gerenate generates an excitation signal from f0 sequence. If the unvoiced segment is detected (segment of zero f0), this generates gaussian or pseudo random samples, f0-dependent excitation otherwise.

func (*PulseExcite) GenerateOneFrame

func (e *PulseExcite) GenerateOneFrame(f01, f02 float64) []float64

GenerateOneFrame generates an excitation signal from successive two f0. If the given f0 have zero value(s), GenerateOneFrame generates random samples, f0-dependent excitation otherwise.