rita.support
Class RiLetterToSound

java.lang.Object
  rita.support.RiLetterToSound

All Implemented Interfaces:

com.sun.speech.freetts.lexicon.LetterToSound

public class RiLetterToSound
extends java.lang.Object
implements com.sun.speech.freetts.lexicon.LetterToSound

Provides the phone list for words using the CMU6 letter-to-sound (LTS) rules, which are based on the Black, Lenzo, and Pagel paper, "Issues in Building General Letter-to-Sound Rules." Proceedings of ECSA Workshop on Speech Synthesis, pages 77-80, Australia, 1998.

Field Summary

static boolean

VERBOSE Whether LTS notifications are output to the console

Constructor Summary

RiLetterToSound(java.net.URL ltsRules)

RiLetterToSound(java.net.URL ltsRules, boolean binary)
Class constructor.

Method Summary

boolean	compare(RiLetterToSound other) Compares this LTS to another for debugging purposes.
void	dumpBinary(java.lang.String path) Dumps a binary form of the letter to sound rules.
java.lang.String[]	getPhones(java.lang.String word, java.lang.String partOfSpeech) Calculates the phone list for a given word.
static void	main(java.lang.String[] args) Translates between text and binary forms of the CMU6 LTS rules.

Methods inherited from class java.lang.Object

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

Field Detail

VERBOSE

public static boolean VERBOSE

Whether LTS notifications are output to the console

Constructor Detail

RiLetterToSound

public RiLetterToSound(java.net.URL ltsRules)
                throws java.io.IOException

Throws:

java.io.IOException

RiLetterToSound

public RiLetterToSound(java.net.URL ltsRules,
                       boolean binary)
                throws java.io.IOException

Class constructor.

Parameters:

ltsRules - a URL pointing to the text containing the letter to sound rules

binary - if true, the URL is a binary source

Throws:

java.lang.NullPointerException - if the ltsRules are null

java.io.IOException - if errors are encountered while reading the compiled form or the addenda

Method Detail

dumpBinary

public void dumpBinary(java.lang.String path)
                throws java.io.IOException

Dumps a binary form of the letter to sound rules. This method is not thread-safe.

Binary format is:

    MAGIC
    VERSION
    NUM STATES
    for each state ...
 

Parameters:

path - the path to dump the file to

Throws:

java.io.IOException - if a problem occurs during the dump

getPhones

public java.lang.String[] getPhones(java.lang.String word,
                                    java.lang.String partOfSpeech)

Calculates the phone list for a given word. If a phone list cannot be determined, null is returned. This particular implementation ignores the part of speech.

Specified by:

getPhones in interface com.sun.speech.freetts.lexicon.LetterToSound

Parameters:

word - the word to find

partOfSpeech - the part of speech.

Returns:

the list of phones for word or null

compare

public boolean compare(RiLetterToSound other)

Compares this LTS to another for debugging purposes.

Parameters:

other - the other LTS to compare to

Returns:

true if these are equivalent

main

public static void main(java.lang.String[] args)

Translates between text and binary forms of the CMU6 LTS rules.