marytts.unitselection.select

Class JoinModelCost

java.lang.Object

marytts.unitselection.select.JoinModelCost

All Implemented Interfaces:

JoinCostFunction

public class JoinModelCost
extends Object
implements JoinCostFunction

Field Summary

Fields

Modifier and Type	Field and Description
protected int	nCostComputations

Constructor Summary

Constructors

Constructor and Description
JoinModelCost() Empty constructor; when using this, call load() separately to initialise this class.

Method Summary

Methods

Modifier and Type	Method and Description
double	cost(Target t1, Unit u1, Target t2, Unit u2) A combined cost computation, as a weighted sum of the signal-based cost (computed from the units) and the phonetics-based cost (computed from the targets).
void	init(String configPrefix) Initialise this join cost function by reading the appropriate settings from the MaryProperties using the given configPrefix.
void	load(String joinFileName, InputStream joinPdfStream, InputStream joinTreeStream, String trickyPhonesFile) Load weights and values from the given file
void	load(String a, InputStream b, String c, float d) Deprecated.
void	setFeatureDefinition(FeatureDefinition def) Set the feature definition to use for interpreting target feature vectors.

Methods inherited from class java.lang.Object

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

Field Detail

nCostComputations

protected int nCostComputations

Constructor Detail

JoinModelCost

public JoinModelCost()

Empty constructor; when using this, call load() separately to initialise this class.

See Also:

load(String a, InputStream b, String c, float d)

Method Detail

init

public void init(String configPrefix)
          throws MaryConfigurationException

Initialise this join cost function by reading the appropriate settings from the MaryProperties using the given configPrefix.

Specified by:

init in interface JoinCostFunction

Parameters:

configPrefix - the prefix for the (voice-specific) config entries to use when looking up files to load.

Throws:

MaryConfigurationException - MaryConfigurationException

load

@Deprecated
public void load(String a,
                   InputStream b,
                   String c,
                   float d)

Deprecated.

Description copied from interface: JoinCostFunction

Load weights and values from the given file

Specified by:

load in interface JoinCostFunction

Parameters:

a - the file from which to read default weights and join cost features

b - an optional file from which to read weights, taking precedence over

c - an optional file containing precompiled join costs

d - Relative weight of the signal-based join costs relative to the phonetic join costs computed from the target

load

public void load(String joinFileName,
        InputStream joinPdfStream,
        InputStream joinTreeStream,
        String trickyPhonesFile)
          throws IOException,
                 MaryConfigurationException

Load weights and values from the given file

Parameters:

joinFileName - the file from which to read join cost features

joinPdfStream - the file from which to read the Gaussian models in the leaves of the tree

joinTreeStream - the file from which to read the Tree, in HTS format.

trickyPhonesFile - trickyPhonesFile

Throws:

IOException - IOException

MaryConfigurationException - MaryConfigurationException

setFeatureDefinition

public void setFeatureDefinition(FeatureDefinition def)

Set the feature definition to use for interpreting target feature vectors.

Parameters:

def - the feature definition to use.

cost

public double cost(Target t1,
          Unit u1,
          Target t2,
          Unit u2)

A combined cost computation, as a weighted sum of the signal-based cost (computed from the units) and the phonetics-based cost (computed from the targets).

Specified by:

cost in interface JoinCostFunction

Parameters:

t1 - The left target.

u1 - The left unit.

t2 - The right target.

u2 - The right unit.

Returns:

the cost of joining the left unit with the right unit, as a non-negative value.