com.sun.speech.freetts.jsapi
Class FreeTTSSynthesizer

java.lang.Object
  com.sun.speech.engine.BaseEngine
      com.sun.speech.engine.synthesis.BaseSynthesizer
          com.sun.speech.freetts.jsapi.FreeTTSSynthesizer

All Implemented Interfaces:

SpeechEventDispatcher

public class FreeTTSSynthesizer
extends BaseSynthesizer

Provides partial support for a JSAPI 1.0 synthesizer for the FreeTTS speech synthesis system.

Field Summary

Fields inherited from class com.sun.speech.engine.synthesis.BaseSynthesizer

speakableListeners, voiceList

Fields inherited from class com.sun.speech.engine.BaseEngine

audioManager, CLEAR_ALL_STATE, engineListeners, engineModeDesc, engineProperties, engineState, engineStateLock

Constructor Summary

FreeTTSSynthesizer(FreeTTSSynthesizerModeDesc desc)
Creates a new Synthesizer in the DEALLOCATED state.

Method Summary

protected void	appendQueue(BaseSynthesizerQueueItem item) Places an item on the speaking queue and send the queue update event.
void	cancel() Cancels the item at the top of the queue.
void	cancel(java.lang.Object source) Cancels a specific object on the queue.
void	cancelAll() Cancels all items on the output queue.
protected BaseEngineProperties	createEngineProperties() Factory constructor for EngineProperties object.
protected BaseSynthesizerQueueItem	createQueueItem() Factory method to create a BaseSynthesizerQueueItem.
java.util.Enumeration	enumerateQueue() Returns an enumeration of the queue.
protected void	handleAllocate() Starts the output thread.
protected void	handleDeallocate() Handles a deallocation request.
protected void	handlePause() Pauses the output
protected void	handleResume() Resumes the output

Methods inherited from class com.sun.speech.engine.synthesis.BaseSynthesizer

addSpeakableListener, dispatchSpeechEvent, fireQueueEmptied, fireQueueUpdated, getSynthesizerProperties, getVoiceList, phoneme, postQueueEmptied, postQueueUpdated, removeSpeakableListener, speak, speak, speak, speakPlainText, stateToString

Methods inherited from class com.sun.speech.engine.BaseEngine

addEngineListener, allocate, checkEngineState, deallocate, fireEngineAllocated, fireEngineAllocatingResources, fireEngineDeallocated, fireEngineDeallocatingResources, fireEnginePaused, fireEngineResumed, getAudioManager, getEngineModeDesc, getEngineProperties, getEngineState, getVocabManager, pause, postEngineAllocated, postEngineAllocatingResources, postEngineDeallocated, postEngineDeallocatingResources, postEnginePaused, postEngineResumed, removeEngineListener, resume, setEngineModeDesc, setEngineState, testEngineState, toString, waitEngineState

Methods inherited from class java.lang.Object

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

Constructor Detail

FreeTTSSynthesizer

public FreeTTSSynthesizer(FreeTTSSynthesizerModeDesc desc)

Creates a new Synthesizer in the DEALLOCATED state.

Parameters:

desc - describes the allowed mode of operations for this synthesizer.

Method Detail

handleAllocate

protected void handleAllocate()
                       throws EngineException

Starts the output thread. The output thread is responsible for taking items off of the queue and sending them to the audio player.

Specified by:

handleAllocate in class BaseEngine

Throws:

EngineException - if an allocation error occurs

See Also:

BaseEngine.allocate()

handleDeallocate

protected void handleDeallocate()
                         throws EngineException

Handles a deallocation request. Cancels all pending items, terminates the output handler, and posts the state changes.

Specified by:

handleDeallocate in class BaseEngine

Throws:

EngineException - if a deallocation error occurs

createQueueItem

protected BaseSynthesizerQueueItem createQueueItem()

Factory method to create a BaseSynthesizerQueueItem.

Overrides:

createQueueItem in class BaseSynthesizer

Returns:

a queue item appropriate for this synthesizer

enumerateQueue

public java.util.Enumeration enumerateQueue()
                                     throws EngineStateError

Returns an enumeration of the queue.

Specified by:

enumerateQueue in class BaseSynthesizer

Returns:

an enumeration of the contents of the queue. This enumeration contains FreeTTSSynthesizerQueueItem objects

Throws:

EngineStateError - if the engine was not in the proper state

appendQueue

protected void appendQueue(BaseSynthesizerQueueItem item)

Places an item on the speaking queue and send the queue update event.

Specified by:

appendQueue in class BaseSynthesizer

Parameters:

item - the item to place in the queue

cancel

public void cancel()
            throws EngineStateError

Cancels the item at the top of the queue.

Specified by:

cancel in class BaseSynthesizer

Throws:

EngineStateError - if the synthesizer is not in the proper state

cancel

public void cancel(java.lang.Object source)
            throws java.lang.IllegalArgumentException,
                   EngineStateError

Cancels a specific object on the queue.

Specified by:

cancel in class BaseSynthesizer

Parameters:

source - the object to cancel

Throws:

java.lang.IllegalArgumentException - if the source object is not currently in the queue

EngineStateError - the synthesizer is not in the proper state

cancelAll

public void cancelAll()
               throws EngineStateError

Cancels all items on the output queue.

Specified by:

cancelAll in class BaseSynthesizer

Throws:

EngineStateError

handlePause

protected void handlePause()

Pauses the output

Specified by:

handlePause in class BaseEngine

handleResume

protected void handleResume()

Resumes the output

Specified by:

handleResume in class BaseEngine

createEngineProperties

protected BaseEngineProperties createEngineProperties()

Factory constructor for EngineProperties object. Gets the default speaking voice from the SynthesizerModeDesc. Takes the default prosody values (pitch, range, volume, rate) from the default voice. Override to set engine-specific defaults.

Overrides:

createEngineProperties in class BaseSynthesizer

Returns:

a BaseEngineProperties object specific to a subclass.