edu.cmu.sphinx.linguist.acoustic

Class Unit

java.lang.Object

edu.cmu.sphinx.linguist.acoustic.Unit

public class Unit
extends java.lang.Object

Represents a unit of speech. Units may represent phones, words or any other suitable unit

Field Summary

Fields

Modifier and Type	Field and Description
static Unit[]	EMPTY_ARRAY

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object o) Checks to see of an object is equal to this unit
int	getBaseID() Gets the base ID for this unit
Unit	getBaseUnit() Gets the base unit associated with this HMM
Context	getContext() Returns the context for this unit
static Unit[]	getEmptyContext(int size) Creates and returns an empty context with the given size.
java.lang.String	getName() Gets the name for this unit
int	hashCode() calculates a hashCode for this unit.
boolean	isContextDependent() Determines if this unit is context dependent
static boolean	isContextMatch(Unit[] a, Unit[] b) Checks to see that there is 100% overlap in the given contexts
boolean	isFiller() Determines if this unit is a filler unit
boolean	isPartialMatch(java.lang.String name, Context context) Checks to see if the given unit with associated contexts is a partial match for this unit.
boolean	isSilence() Determines if this unit is the silence unit
java.lang.String	toString() Converts to a string

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

EMPTY_ARRAY

public static final Unit[] EMPTY_ARRAY

Method Detail

getName

public java.lang.String getName()

Gets the name for this unit

Returns:

the name for this unit

isFiller

public boolean isFiller()

Determines if this unit is a filler unit

Returns:

true if the unit is a filler unit

isSilence

public boolean isSilence()

Determines if this unit is the silence unit

Returns:

true if the unit is the silence unit

getBaseID

public int getBaseID()

Gets the base ID for this unit

Returns:

the id

getBaseUnit

public Unit getBaseUnit()

Gets the base unit associated with this HMM

Returns:

the unit associated with this HMM

getContext

public Context getContext()

Returns the context for this unit

Returns:

the context for this unit (or null if context independent)

isContextDependent

public boolean isContextDependent()

Determines if this unit is context dependent

Returns:

true if the unit is context dependent

equals

public boolean equals(java.lang.Object o)

Checks to see of an object is equal to this unit

Overrides:

equals in class java.lang.Object

Parameters:

o - the object to check

Returns:

true if the objects are equal

hashCode

public int hashCode()

calculates a hashCode for this unit. Since we defined an equals for Unit, we must define a hashCode as well

Overrides:

hashCode in class java.lang.Object

Returns:

the hashcode for this object

toString

public java.lang.String toString()

Converts to a string

Overrides:

toString in class java.lang.Object

Returns:

string version

isPartialMatch

public boolean isPartialMatch(java.lang.String name,
                              Context context)

Checks to see if the given unit with associated contexts is a partial match for this unit. Zero, One or both contexts can be null. A null context matches any context

Parameters:

name - the name of the unit

context - the context to match against

Returns:

true if this unit matches the name and non-null context

getEmptyContext

public static Unit[] getEmptyContext(int size)

Creates and returns an empty context with the given size. The context is padded with SIL filler

Parameters:

size - the size of the context

Returns:

the context

isContextMatch

public static boolean isContextMatch(Unit[] a,
                                     Unit[] b)

Checks to see that there is 100% overlap in the given contexts

Parameters:

a - context to check for a match

b - context to check for a match

Returns:

true if the contexts match