vad

type ProbabilityEstimator func(*model.AudioFrame) (float64, error)

type ProbabilityEstimatorFactory func() ProbabilityEstimator

type SimpleVAD struct {
	// contains filtered or unexported fields
}

type SimpleVADOption func(*SimpleVADOptions)

type SimpleVADOptions struct {
	Threshold                 float64
	MinSpeechDuration         float64
	MinSilenceDuration        float64
	PrefixPaddingDuration     float64
	MaxBufferedSpeechDuration float64
	DeactivationThreshold     float64
	UpdateInterval            float64
	SampleRate                uint32
	WindowDuration            float64
	ProbabilitySmoothingAlpha float64
	ProbabilityEstimator      ProbabilityEstimatorFactory
	// contains filtered or unexported fields
}

type VAD interface {
	Label() string
	Model() string
	Provider() string
	Capabilities() VADCapabilities
	OnMetricsCollected(handler VADMetricsHandler) func()
	Stream(ctx context.Context) (VADStream, error)
}

type VADCapabilities struct {
	UpdateInterval float64
}

type VADEvent struct {
	Type                  VADEventType
	SamplesIndex          int
	Timestamp             float64
	SpeechDuration        float64
	SilenceDuration       float64
	Frames                []*model.AudioFrame
	Probability           float64
	InferenceDuration     float64
	Speaking              bool
	RawAccumulatedSilence float64
	RawAccumulatedSpeech  float64
}

type VADEventType string

type VADMetricsHandler func(*telemetry.VADMetrics)

type VADStream interface {
	PushFrame(frame *model.AudioFrame) error
	Flush() error
	EndInput() error
	Close() error
	Next() (*VADEvent, error)
}