marytts.unitselection.select
Interface JoinCostFunction

All Known Implementing Classes:

JoinCostFeatures, JoinModelCost, PrecompiledJoinCostReader

public interface JoinCostFunction

A join cost function for evaluating the goodness-of-fit of a given pair of left and right unit.

Author:

Marc Schröder

Method Summary

double	cost(Target t1, Unit u1, Target t2, Unit u2) Compute the goodness-of-fit of joining two units, given the corresponding targets
void	init(java.lang.String configPrefix) Initialise this join cost function by reading the appropriate settings from the MaryProperties using the given configPrefix.
void	load(java.lang.String joinFileName, java.lang.String weightsFileName, java.lang.String precompiledCostFileName, float wSignal) Deprecated.

Method Detail

cost

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

Compute the goodness-of-fit of joining two units, given the corresponding targets

Parameters:

t1 - the left target

u1 - the proposed left unit

t2 - the right target

u3 - the proposed right unit

Returns:

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

init

void init(java.lang.String configPrefix)
          throws java.io.IOException

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

Parameters:

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

Throws:

java.io.IOException

load

@Deprecated
void load(java.lang.String joinFileName,
                     java.lang.String weightsFileName,
                     java.lang.String precompiledCostFileName,
                     float wSignal)
          throws java.io.IOException

Deprecated.

Load weights and values from the given file

Parameters:

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

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

precompiledCostFileName - an optional file containing precompiled join costs

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

Throws:

java.io.IOException