marytts.unitselection.select

Class PrecompiledJoinCostReader

java.lang.Object

marytts.unitselection.select.PrecompiledJoinCostReader

All Implemented Interfaces:

JoinCostFunction

public class PrecompiledJoinCostReader
extends Object
implements JoinCostFunction

Loads a precompiled join cost file and provides access to the join cost.

Field Summary

Fields

Modifier and Type	Field and Description
protected Map	left

Constructor Summary

Constructors

Constructor and Description
PrecompiledJoinCostReader() Empty constructor; need to call load() separately.
PrecompiledJoinCostReader(String fileName) Create a precompiled join cost file reader from the given file

Method Summary

Methods

Modifier and Type	Method and Description
double	cost(Target t1, Unit uleft, Target t2, Unit uright) Return the (precomputed) cost of joining the two given units; if there is no precomputed cost, return Double.POSITIVE_INFINITY.
void	init(String configPrefix) Initialise this join cost function by reading the appropriate settings from the MaryProperties using the given configPrefix.
void	load(String fileName, InputStream dummy, String dummy2, float dummy3) Load the given precompiled join cost file

Methods inherited from class java.lang.Object

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

Field Detail

left

protected Map left

Constructor Detail

PrecompiledJoinCostReader

public PrecompiledJoinCostReader()

Empty constructor; need to call load() separately.

See Also:

load(String fileName, InputStream dummy, String dummy2, float dummy3)

PrecompiledJoinCostReader

public PrecompiledJoinCostReader(String fileName)
                          throws IOException,
                                 MaryConfigurationException

Create a precompiled join cost file reader from the given file

Parameters:

fileName - the file to read

Throws:

IOException - if a problem occurs while reading

MaryConfigurationException - MaryConfigurationException

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

public void load(String fileName,
        InputStream dummy,
        String dummy2,
        float dummy3)
          throws IOException,
                 MaryConfigurationException

Load the given precompiled join cost file

Specified by:

load in interface JoinCostFunction

Parameters:

fileName - the file to read

dummy - not used, just used to fulfill the join cost function interface

dummy2 - not used, just used to fulfill the join cost function interface

dummy3 - not used, just used to fulfill the join cost function interface

Throws:

IOException - if a problem occurs while reading

MaryConfigurationException - MaryConfigurationException

cost

public double cost(Target t1,
          Unit uleft,
          Target t2,
          Unit uright)

Return the (precomputed) cost of joining the two given units; if there is no precomputed cost, return Double.POSITIVE_INFINITY.

Specified by:

cost in interface JoinCostFunction

Parameters:

t1 - t1

uleft - uleft

t2 - t2

uright - uright

Returns:

a non-negative number; smaller values mean better fit, i.e. smaller cost.