Class VADOptions

Options for Voice Activity Detection (VAD)

Inheritance
System.Object
VADOptions
Namespace: Speechly.Types
Assembly: speechly-dotnet.dll
Syntax
public class VADOptions : object

Fields

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NoiseGateDb

Declaration
public float NoiseGateDb
Field Value
Type Description
System.Single

Energy threshold - below this won't trigger activation
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NoiseLearnHalftimeMillis

Declaration
public int NoiseLearnHalftimeMillis
Field Value
Type Description
System.Int32

Rate of background noise learn. Defined as duration in which background noise energy is moved halfway towards current frame's energy.
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SignalActivation

Declaration
public float SignalActivation
Field Value
Type Description
System.Single

Minimum 'signal' to 'silent' frame ratio in history to activate 'IsSignalDetected'
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SignalRelease

Declaration
public float SignalRelease
Field Value
Type Description
System.Single

Maximum 'signal' to 'silent' frame ratio in history to inactivate 'IsSignalDetected'. Only evaluated when the sustain period is over.
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SignalSearchFrames

Declaration
public int SignalSearchFrames
Field Value
Type Description
System.Int32
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SignalSustainMillis

Declaration
public int SignalSustainMillis
Field Value
Type Description
System.Int32

Duration to keep 'IsSignalDetected' active. Renewed as long as VADActivation is holds true.
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SignalToNoiseDb

Declaration
public float SignalToNoiseDb
Field Value
Type Description
System.Single

Signal-to-noise energy ratio needed for frame to be 'loud'

Properties

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Enabled

Declaration
public bool Enabled { get; set; }
Property Value
Type Description
System.Boolean

Enable energy-level calculations