inpro.incremental.processor
Class IUBasedFloorTracker

java.lang.Object
  inpro.incremental.PushBuffer
      inpro.incremental.IUModule
          inpro.incremental.processor.AbstractFloorTracker
              inpro.incremental.processor.IUBasedFloorTracker

All Implemented Interfaces:

edu.cmu.sphinx.instrumentation.Resetable, edu.cmu.sphinx.util.props.Configurable

public class IUBasedFloorTracker
extends AbstractFloorTracker

Nested Class Summary

private class	IUBasedFloorTracker.ExpectingInputTimeOutThread
private class	IUBasedFloorTracker.TimeOutThread supports classes for timing out and sending signals
private class	IUBasedFloorTracker.WordTimeOutThread times out and sends signals on an utterance-final word.

Nested classes/interfaces inherited from class inpro.incremental.processor.AbstractFloorTracker

AbstractFloorTracker.InternalState, AbstractFloorTracker.Listener, AbstractFloorTracker.Signal

Nested classes/interfaces inherited from class inpro.incremental.IUModule

IUModule.RightBuffer

Field Summary

private int	anyProsodyTimeout
static java.lang.String	PROP_ANY_TIMEOUT
static java.lang.String	PROP_RISING_TIMEOUT
static java.lang.String	PROP_USE_PROSODY
private int	risingTimeout
(package private) IUBasedFloorTracker.TimeOutThread	timeOutThread
private boolean	useProsody

Fields inherited from class inpro.incremental.processor.AbstractFloorTracker

ftlisteners, internalState, mostRecentIUs, PROP_STATE_LISTENERS

Fields inherited from class inpro.incremental.IUModule

iulisteners, logger, PROP_HYP_CHANGE_LISTENERS, PROP_LOG_TO_TEDVIEW, PROP_TEDVIEW_LOG_ADDRESS, PROP_TEDVIEW_LOG_PORT, rightBuffer, tedLogAdapter

Constructor Summary

IUBasedFloorTracker()

Method Summary

private WordIU	getPotentiallyFinalWord(java.util.List<WordIU> ius, java.util.List<EditMessage<WordIU>> edits) true if the list of IUs ends in <sil> or if the list of IUs has been committed
private boolean	hasNewNonSilWord(java.util.List<EditMessage<WordIU>> edits) true if a new non-silence word was added.
void	installInputTimeout(int milliseconds) set a timeout to throw a NO_INPUT signal unless something is spoken within the next given number of milliseconds
private void	installNewThread(IUBasedFloorTracker.TimeOutThread tot) install a new timeout thread
private void	killThread() kill a currently running timeout thread
private WordIU	lastNonSilentWord(java.util.List<WordIU> words) the last nonsilent word from words, or null if none exists
void	leftBufferUpdate(java.util.Collection<? extends IU> ius, java.util.List<? extends EditMessage<? extends IU>> edits) handles creation (and destruction) of time-out threads.
void	newProperties(edu.cmu.sphinx.util.props.PropertySheet ps)

Methods inherited from class inpro.incremental.processor.AbstractFloorTracker

isNotInInput, signalListeners

Methods inherited from class inpro.incremental.IUModule

getTime, hypChange, logToTedView

Methods inherited from class inpro.incremental.PushBuffer

reset

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

PROP_RISING_TIMEOUT

@S4Integer(defaultValue=0)
public static final java.lang.String PROP_RISING_TIMEOUT

See Also:

Constant Field Values

risingTimeout

private int risingTimeout

PROP_ANY_TIMEOUT

@S4Integer(defaultValue=700)
public static final java.lang.String PROP_ANY_TIMEOUT

See Also:

Constant Field Values

anyProsodyTimeout

private int anyProsodyTimeout

PROP_USE_PROSODY

@S4Boolean(defaultValue=true)
public static final java.lang.String PROP_USE_PROSODY

See Also:

Constant Field Values

useProsody

private boolean useProsody

timeOutThread

IUBasedFloorTracker.TimeOutThread timeOutThread

Constructor Detail

IUBasedFloorTracker

public IUBasedFloorTracker()

Method Detail

newProperties

public void newProperties(edu.cmu.sphinx.util.props.PropertySheet ps)
                   throws edu.cmu.sphinx.util.props.PropertyException

Specified by:

newProperties in interface edu.cmu.sphinx.util.props.Configurable

Overrides:

newProperties in class AbstractFloorTracker

Throws:

edu.cmu.sphinx.util.props.PropertyException

See Also:

AbstractFloorTracker.newProperties(edu.cmu.sphinx.util.props.PropertySheet)

installInputTimeout

public void installInputTimeout(int milliseconds)

set a timeout to throw a NO_INPUT signal unless something is spoken within the next given number of milliseconds

Parameters:

milliseconds - the number of milliseconds until the timeout

leftBufferUpdate

public void leftBufferUpdate(java.util.Collection<? extends IU> ius,
                             java.util.List<? extends EditMessage<? extends IU>> edits)

handles creation (and destruction) of time-out threads. Threads are created on commit (i.e. when VAD thinks that the user is silent) and when a word is added (i.e. when the recognizer thinks, that the user is silent); running threads are destroyed on add of a non-silence word (i.e. when VAD notices that the user speaks and additionally the recognizer thinks that this is not silence)

Overrides:

leftBufferUpdate in class AbstractFloorTracker

Parameters:

ius - list of IUs that make up the current hypothesis

edits - a list of edits since the last call

hasNewNonSilWord

private boolean hasNewNonSilWord(java.util.List<EditMessage<WordIU>> edits)

true if a new non-silence word was added.

getPotentiallyFinalWord

private WordIU getPotentiallyFinalWord(java.util.List<WordIU> ius,
                                       java.util.List<EditMessage<WordIU>> edits)

true if the list of IUs ends in <sil> or if the list of IUs has been committed

lastNonSilentWord

private WordIU lastNonSilentWord(java.util.List<WordIU> words)

the last nonsilent word from words, or null if none exists

installNewThread

private void installNewThread(IUBasedFloorTracker.TimeOutThread tot)

install a new timeout thread

killThread

private void killThread()

kill a currently running timeout thread