sound

type Endian int32

type Params struct {
	WinMs       float32 `def:"25" desc:"input window -- number of milliseconds worth of sound to filter at a time"`
	StepMs      float32 `` /* 139-byte string literal not displayed */
	SegmentMs   float32 `` /* 265-byte string literal not displayed */
	StrideMs    float32 `def:"100" desc:"how far to move on each trial"`
	BorderSteps int     `def:"6" view:"+" desc:"overlap with previous segment"`
	Channel     int     `` /* 138-byte string literal not displayed */
	PadValue    float32 `desc:"value to use of signal when padding"`

	// these are calculated
	WinSamples        int   `inactive:"+" desc:"number of samples to process each step"`
	StepSamples       int   `inactive:"+" desc:"number of samples to step input by"`
	SegmentSamples    int   `inactive:"+" desc:"number of samples in a segment"`
	StrideSamples     int   `inactive:"+" desc:"number of samples converted from StrideMS"`
	SegmentSteps      int   `inactive:"+" desc:"number of steps in a segment"`
	SegmentStepsTotal int   `inactive:"+" desc:"SegmentSteps plus steps border steps on both sides"`
	Steps             []int `inactive:"+" desc:"pre-calculated start position for each step"`
}

type SndEnv struct {
	// the environment has the training/test data and the procedures for creating/choosing the input to the model
	// "Segment" in var name indicates that the data or value only applies to a segment of samples rather than the entire signal
	Nm              string `desc:"name of this environment"`
	Dsc             string `desc:"description of this environment"`
	Sound           Wave   `desc:"specifications of the raw se.tory input"`
	Params          Params
	Signal          etensor.Float32 `view:"no-inline" desc:" the full sound input obtained from the sound input"`
	SegCnt          int             `desc:"the number of segments for this sound"`
	Window          etensor.Float32 `inactive:"+" desc:" [Input.WinSamples] the raw sound input, one channel at a time"`
	Segment         int             `inactive:"no-inline" desc:" the current chunk of samples (a full segment's' worth) - zero is first chunk"`
	Dft             dft.Params
	Power           etensor.Float32   `view:"-" desc:" power of the dft, up to the nyquist limit frequency (1/2 input.WinSamples)"`
	LogPower        etensor.Float32   `view:"-" desc:" log power of the dft, up to the nyquist liit frequency (1/2 input.WinSamples)"`
	PowerSegment    etensor.Float32   `view:"no-inline" desc:" full segment's worth of power of the dft, up to the nyquist limit frequency (1/2 input.win_samples)"`
	LogPowerSegment etensor.Float32   `` /* 128-byte string literal not displayed */
	Mel             mel.Params        `view:"no-inline"`
	MelFBank        etensor.Float32   `` /* 150-byte string literal not displayed */
	MelFBankSegment etensor.Float32   `view:"no-inline" desc:" full segment's worth of mel feature-bank output"`
	MelFilters      etensor.Float32   `view:"no-inline" desc:" the actual filters"`
	MfccDctSegment  etensor.Float32   `` /* 160-byte string literal not displayed */
	MfccDct         etensor.Float32   `` /* 140-byte string literal not displayed */
	GaborSpecs      []agabor.Filter   `view:"no-inline" desc:" a set of gabor filter specifications, one spec per filter'"`
	GaborFilters    agabor.FilterSet  `desc:"the actual gabor filters, the first spec determines the size of all filters in the set"`
	GaborTab        etable.Table      `view:"no-inline" desc:"gabor filter table (view only)"`
	GborPoolsX      int               `view:"+" desc:" this values is the number of neuron pools along the time dimension in the input layer"`
	GborPoolsY      int               `view:"+" desc:" this values is the number of neuron pools along the freq dimension in the input layer"`
	GborOutput      etensor.Float32   `view:"no-inline" desc:" raw output of Gabor -- full segment's worth of gabor steps"`
	GborKwta        etensor.Float32   `view:"no-inline" desc:" post-kwta output of full segment's worth of gabor steps"`
	Inhibs          fffb.Inhibs       `view:"no-inline" desc:"inhibition values for A1 KWTA"`
	ExtGi           etensor.Float32   `view:"no-inline" desc:"A1 simple extra Gi from neighbor inhibition tensor"`
	NeighInhib      kwta.NeighInhib   `` /* 155-byte string literal not displayed */
	Kwta            kwta.KWTA         `desc:"kwta parameters, using FFFB form"`
	KwtaPool        bool              `desc:"if Kwta.On == true, call KwtaPool (true) or KwtaLayer (false)"`
	FftCoefs        []complex128      `view:"-" desc:" discrete fourier transform (fft) output complex representation"`
	Fft             *fourier.CmplxFFT `view:"-" desc:" struct for fast fourier transform"`

	// internal state - view:"-"
	FirstStep bool `view:"-" desc:" if first frame to process -- turns off prv smoothing of dft power"`
}

type SoundSampleType int32

type Wave struct {
	Buf *audio.IntBuffer
}