edu.cmu.sphinx.linguist.acoustic.trivial

Class TrivialAcousticModel

java.lang.Object

edu.cmu.sphinx.linguist.acoustic.trivial.TrivialAcousticModel

All Implemented Interfaces:

AcousticModel, Configurable

public class TrivialAcousticModel
extends java.lang.Object
implements AcousticModel

Represents the generic interface to the Acoustic Model for sphinx4

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	LEFT_CONTEXT_SIZE Defines the left context size
static java.lang.String	RIGHT_CONTEXT_SIZE

Fields inherited from interface edu.cmu.sphinx.linguist.acoustic.AcousticModel

PROP_LOCATION

Constructor Summary

Constructors

Constructor and Description
TrivialAcousticModel()
TrivialAcousticModel(int leftContextSize, int rightContextSize)

Method Summary

Modifier and Type	Method and Description
void	allocate() Gets this acoustic model ready to use, allocating all necessary resources.
void	deallocate() Deallocates previously allocated resources
java.util.Iterator<Unit>	getContextIndependentUnitIterator() Returns an iterator that can be used to iterate through all the CI units in the acoustic model
java.util.Iterator<HMM>	getHMMIterator() Returns an iterator that can be used to iterate through all the HMMs of the acoustic model
int	getLeftContextSize() Returns the size of the left context for context dependent units
java.lang.String	getName() Returns the name of this AcousticModel, or null if it has no name.
java.util.Properties	getProperties() Returns the properties of this acoustic model.
int	getRightContextSize() Returns the size of the right context for context dependent units
HMM	lookupNearestHMM(Unit unit, HMMPosition position, boolean exactMatch) Given a unit, returns the HMM that best matches the given unit.
void	newProperties(PropertySheet ps) This method is called when this configurable component needs to be reconfigured.

Methods inherited from class java.lang.Object

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

Field Detail

LEFT_CONTEXT_SIZE

@S4Integer(defaultValue=1)
public static final java.lang.String LEFT_CONTEXT_SIZE

Defines the left context size

See Also:

Constant Field Values

RIGHT_CONTEXT_SIZE

@S4Integer(defaultValue=1)
public static final java.lang.String RIGHT_CONTEXT_SIZE

See Also:

Constant Field Values

Constructor Detail

TrivialAcousticModel

public TrivialAcousticModel(int leftContextSize,
                            int rightContextSize)

TrivialAcousticModel

public TrivialAcousticModel()

Method Detail

newProperties

public void newProperties(PropertySheet ps)
                   throws PropertyException

Description copied from interface: Configurable

This method is called when this configurable component needs to be reconfigured.

Specified by:

newProperties in interface Configurable

Parameters:

ps - a property sheet holding the new data

Throws:

PropertyException - if there is a problem with the properties.

getName

public java.lang.String getName()

Returns the name of this AcousticModel, or null if it has no name.

Specified by:

getName in interface AcousticModel

Returns:

the name of this AcousticModel, or null if it has no name

getProperties

public java.util.Properties getProperties()

Returns the properties of this acoustic model.

Specified by:

getProperties in interface AcousticModel

Returns:

the properties of this acoustic model

lookupNearestHMM

public HMM lookupNearestHMM(Unit unit,
                            HMMPosition position,
                            boolean exactMatch)

Given a unit, returns the HMM that best matches the given unit. If exactMatch is false and an exact match is not found, then different word positions are used. If any of the contexts are non-silence filler units. a silence filler unit is tried instead.

Specified by:

lookupNearestHMM in interface AcousticModel

Parameters:

unit - the unit of interest

position - the position of the unit of interest

exactMatch - if true, only an exact match is acceptable.

Returns:

the HMM that best matches, or null if no match could be found.

getHMMIterator

public java.util.Iterator<HMM> getHMMIterator()

Returns an iterator that can be used to iterate through all the HMMs of the acoustic model

Specified by:

getHMMIterator in interface AcousticModel

Returns:

an iterator that can be used to iterate through all HMMs in the model. The iterator returns objects of type HMM.

getContextIndependentUnitIterator

public java.util.Iterator<Unit> getContextIndependentUnitIterator()

Returns an iterator that can be used to iterate through all the CI units in the acoustic model

Specified by:

getContextIndependentUnitIterator in interface AcousticModel

Returns:

an iterator that can be used to iterate through all CI units. The iterator returns objects of type Unit

getLeftContextSize

public int getLeftContextSize()

Returns the size of the left context for context dependent units

Specified by:

getLeftContextSize in interface AcousticModel

Returns:

the left context size

getRightContextSize

public int getRightContextSize()

Returns the size of the right context for context dependent units

Specified by:

getRightContextSize in interface AcousticModel

Returns:

the left context size

allocate

public void allocate()
              throws java.io.IOException

Description copied from interface: AcousticModel

Gets this acoustic model ready to use, allocating all necessary resources.

Specified by:

allocate in interface AcousticModel

Throws:

java.io.IOException - if the model could not be loaded

deallocate

public void deallocate()

Description copied from interface: AcousticModel

Deallocates previously allocated resources

Specified by:

deallocate in interface AcousticModel