switchboard::VoiceActivityDetector Class Reference

Voice Activity Detector. More...

#include <VoiceActivityDetector.hpp>

Public Types
enum class	Status { VoiceDetected = 0 , Hangover = 1 , Idle = 2 }

Public Member Functions
	VoiceActivityDetector ()
	Voice Activity Detector constructor.
Status	process (AudioBuffer< float > &inputBuffer)
	Processes an audio buffer and returns the new VAD status.
void	setHangoverDuration (float duration)
	Sets the duration of the VAD hangover in seconds.
float	getHangoverDuration () const
	Returns the current hangover duration in seconds.
void	setGainTriggerThreshold (float threshold)
	Sets the audio level trigger amount for the VAD.
float	getGainTriggerThreshold () const
	Returns the current audio level trigger threshold.
void	setTriggerDuration (float duration)
	Sets the amount of seconds the audio signal must be higher than the trigger threshold for the VAD to be activated.
float	getTriggerDuration () const
	Returns the current trigger duration.

Detailed Description

Voice Activity Detector.

Member Function Documentation

getGainTriggerThreshold()

float switchboard::VoiceActivityDetector::getGainTriggerThreshold

(

)

const

Returns the current audio level trigger threshold.

Returns

Trigger threshold.

getHangoverDuration()

float switchboard::VoiceActivityDetector::getHangoverDuration

(

)

const

Returns the current hangover duration in seconds.

Returns

Hangover duration in seconds.

getTriggerDuration()

float switchboard::VoiceActivityDetector::getTriggerDuration

(

)

const

Returns the current trigger duration.

Returns

Trigger duration.

process()

VoiceActivityDetector::Status switchboard::VoiceActivityDetector::process

(

AudioBuffer< float > &

inputBuffer

)

Processes an audio buffer and returns the new VAD status.

Parameters

inputBuffer

The input audio buffer.

Returns

The VAD status.

setGainTriggerThreshold()

void switchboard::VoiceActivityDetector::setGainTriggerThreshold

(

float

threshold

)

Sets the audio level trigger amount for the VAD.

Parameters

threshold

The new threshold.

setHangoverDuration()

void switchboard::VoiceActivityDetector::setHangoverDuration

(

float

duration

)

Sets the duration of the VAD hangover in seconds.

Parameters

duration

The new duration in seconds.

setTriggerDuration()

void switchboard::VoiceActivityDetector::setTriggerDuration

(

float

duration

)

Sets the amount of seconds the audio signal must be higher than the trigger threshold for the VAD to be activated.

Parameters

duration

The new duration.