C++ default constructor.

Destructor.

Adds a new style to the collection. If equal style exists already, new style is not added. Will leave if an error occurs. Likely errors are: KErrNoMemory, not enough memory to add new style. KErrNotSupported, the style is not supported. KErrArgument, the style contains an imposible value.

Returns the current balance setting.

Notifies that the buffer has been processed. The method is used if output mode of synthesizing is EDevTTSClientMode.

Checks if state is idle and leaves in case of error.

By default Symbian 2nd phase constructor is private.

Request a pointer to the custom interface. Currently not in use.

Deletes style.

Gives current position of synthesizing. The method will leave if an error occurs. Likely errors are: KErrNotReady, no synthesizing is ongoing.

Gives current position of synthesizing. The method will leave if an error occurs. Likely errors are: KErrNotReady, no synthesizing is ongoing.

Tells if language is supported by the TTS engine or not.

Calls language identification for a given text.

From MASRSTtpHwDeviceObserver::MathdoConfigurationData

Callback function to load configuration data. Client provides an implementation.

From MASRSTtpHwDeviceObserver::MathdoWordListReady

Callback function to notify that word list is converted. Client provides an implementation.

Returns maximum volume value.

From MDevTTSAudioObserver::BufferToBeFilled

From MDevTTSAudioObserver::InitializeComplete

From MDevTTSAudioObserver::PlayFinished

From MNlpHwDeviceObserver::MnhdoConfigurationData

Invoked by TTS HW Device when it needs a configuration data package.

From MNlpHwDeviceObserver::MnhdNlpCompleted

Called by the HW device when the synthesis has been completed.

From MNlpHwDeviceObserver::MnhdCustomEvent

Returns style given the style id.

From MTtsHwDeviceObserver::MthdCustomEvent

Called by the HW device when custom command implementation wants to notify a client.

From MTtsHwDeviceObserver::MthdProcessBuffer

Called by the HW device when the HW device has synthesized a new audio buffer.

From MTtsHwDeviceObserver::MthdTtsCompleted

Called by the HW device when the synthesis has been completed.

From MTtsHwDeviceObserver::MthdoConfigurationData

Invoked by TTS HW Device when it needs a configuration data package.

Two-phased constructor.

Calls Natural Language Processing (NLP) to normalize and segment text.

Calls Natural Language Processing (NLP) to normalize text.

Gives number of styles.

Pauses synthesizing.

Prepares for synthesis. The method will leave if an error occurs. Likely errors are: KErrInUse, synthesizing is currently ongoing. KErrNoMemory, not enough memory to start synthesis. KErrNotSupport, requested function is not supported.

Prepares for synthesis. The method will leave if an error occurs. Likely errors are: KErrInUse, synthesizing is currently ongoing. KErrNoMemory, not enough memory to start synthesis. KErrNotSupport, requested function is not supported.

Sets the audio output routing

Sets the priority for audio playback if in EDevTTSSoundDeviceMode.

Sets the playback device balance. Affects only when DevTTS is in EDevTTSSoundDeviceMode. Illegal values are neglected.

Sets new position for synthesizing. The method will leave if an error occurs. Likely errors are: KErrNotReady, no synthesizing is ongoing. KErrArgument, position cannot be set.

Sets new position for synthesizing. The method will leave if an error occurs. Likely errors are: KErrNotReady, no synthesizing is ongoing. KErrArgument, position cannot be set.

Sets the playback device volume. Affects only when DevTTS is in EDevTTSSoundDeviceMode. Range is from 0.. MaxVolume() . Illegal values are neglected.

Sets the volume ramp duration. Start and end volumes must be set with SetVolume() function.

Stops synthesizing and releases resources of synthesizing. The method does nothing if already stopped.

Receives style information. The method will leave if an error occurs. Likely errors are: KErrNotFound, style identifier not found.

Receives style information. The method will leave if an error occurs. Likely errors are: KErrArgument, index is out of bounds.

Starts synthesizing the text. The method is asynchronous, as soon as the request has been placed, function call will return. MDevTTSObserver::MdtoEvent will be called when synthesizing finishes. The method will leave if an error occurs. Likely errors are: KErrNoMemory, not enough memory. KErrInUse, synthesizing is currently ongoing

Returns current playback volume.