Class TtsClient

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Definition

Namespace:
Tizen.Uix.Tts
Assembly:
Tizen.Uix.Tts.dll

You can use Text-To-Speech (TTS) API's to read sound data transformed by the engine from input texts. Applications can add input-text to queue for reading continuously and control the player that can play, pause, and stop sound data synthesized from text.


                
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public class TtsClient : IDisposable
Inheritance
object
TtsClient
Implements
System.IDisposable

Constructors

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TtsClient()

Constructor to create a TTS instance.

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public TtsClient()
Exceptions
Type Condition
System.InvalidOperationException

This exception can be due to the following reasons:

  1. Operation Failed
  2. Engine Not Found
System.OutOfMemoryException

This exception can be due to out Of memory.
System.NotSupportedException

This exception can be due to TTS not supported.

Properties

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CurrentMode

The TTS Mode can be set using this property.

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public Mode CurrentMode { get; set; }
Property Value
Type Description
Mode

The current TTS mode (default, screen-reader, notification).
Exceptions
Type Condition
System.InvalidOperationException

This exception can be due to the following reasons while setting the value:

  1. Operation Failed
  2. Engine Not Found
System.OutOfMemoryException

This exception can be due to out Of memory.
System.NotSupportedException

This exception can be due to TTS not supported.
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CurrentState

Gets the current TTS state.

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public State CurrentState { get; }
Property Value
Type Description
State

The current state of TTS.
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DefaultVoice

Gets the default voice set by the user.

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public SupportedVoice DefaultVoice { get; }
Property Value
Type Description
SupportedVoice

The default voice in TTS.
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MaxTextSize

Gets the maximum byte size for text.

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public uint MaxTextSize { get; }
Property Value
Type Description
uint

The Maximum byte size for text.

Methods

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AddText(string, string, int, int)

Adds a text to the queue.

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public int AddText(string text, string language, int voiceType, int speed)
Parameters
Type Name Description
string text

An input text based UTF-8.
string language

The language selected from the SupportedVoice.Language Property obtained from GetSupportedVoices()(e.g. 'NULL'(Automatic),'en_US').
int voiceType

The voice type selected from the SupportedVoice.VoiceType Property obtained from GetSupportedVoices().
int speed

A speaking speed (e.g.0 for Auto or the value from SpeedRange Property).
Returns
Type Description
int

The utterance ID.
Remarks

Locale MUST be set for UTF-8 text validation check.

Exceptions
Type Condition
System.InvalidOperationException

This exception can be due to the following reasons:

  1. Invalid State
  2. Operation Failure
  3. Invalid Voice
System.NotSupportedException

This exception can be due to TTS not supported.
System.UnauthorizedAccessException

This exception can be due to permission denied.
System.ArgumentException

This exception can be due to improper value provided while setting the value.
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Dispose()

Method to release resources.

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public void Dispose()
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Dispose(bool)

Method to release resources.

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protected virtual void Dispose(bool disposing)
Parameters
Type Name Description
bool disposing

The boolean value for destoying tts handle.
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GetPrivateData(string)

Gets the private data from TTS engine.

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public string GetPrivateData(string key)
Parameters
Type Name Description
string key

The key string.
Returns
Type Description
string

The data corresponding to the provided key.
Exceptions
Type Condition
System.InvalidOperationException

This exception can be due to the following reasons:

  1. Invalid State
  2. Engine Not found
  3. Operation Failure
System.NotSupportedException

This exception can be due to TTS not supported.
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GetSpeedRange()

Gets the speed range.

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public SpeedRange GetSpeedRange()
Returns
Type Description
SpeedRange

The SpeedRange value.
Exceptions
Type Condition
System.InvalidOperationException

This exception can be due to the following reasons:

  1. Invalid State
  2. Operation Failure
System.NotSupportedException

This exception can be due to TTS not supported.
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GetSupportedVoices()

Retrieves all supported voices of the current engine.

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public IEnumerable<SupportedVoice> GetSupportedVoices()
Returns
Type Description
System.Collections.Generic.IEnumerable<T><SupportedVoice>

The list of SupportedVoice.
Exceptions
Type Condition
System.InvalidOperationException

This exception can be due to the following reasons:

  1. Engine Not Found
  2. Operation Failed
System.NotSupportedException

This exception can be due to TTS not supported.
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Pause()

Pauses the currently playing utterance.

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public void Pause()
Exceptions
Type Condition
System.InvalidOperationException

This exception can be due to the following reasons:

  1. Invalid State
  2. Operation Failure
System.NotSupportedException

This exception can be due to TTS not supported.
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Play()

Starts synthesizing voice from the text and plays the synthesized audio data.

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public void Play()
Exceptions
Type Condition
System.InvalidOperationException

This exception can be due to the following reasons:

  1. Invalid State
  2. Operation Failure
  3. Out of Network
System.NotSupportedException

This exception can be due to TTS not supported.
System.UnauthorizedAccessException

This exception can be due to permission denied.
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Prepare()

Connects to the TTS service asynchronously.

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public void Prepare()
Exceptions
Type Condition
System.InvalidOperationException

This exception can be due to an invalid state.
System.NotSupportedException

This exception can be due to TTS not supported.
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SetCredential(string)

Sets the application credential.

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public void SetCredential(string credential)
Parameters
Type Name Description
string credential

. The credential string.
Exceptions
Type Condition
System.InvalidOperationException

This exception can be due to an invalid state.
System.NotSupportedException

This exception can be due to TTS not supported.
System.ArgumentException

This exception can be due to improper value provided while setting the value.
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SetPrivateData(string, string)

Sets the private data to tts engine.

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public void SetPrivateData(string key, string data)
Parameters
Type Name Description
string key

The key string.
string data

The data string.
Exceptions
Type Condition
System.InvalidOperationException

This exception can be due to the following reasons:

  1. Invalid State
  2. Engine Not found
  3. Operation Failure
System.NotSupportedException

This exception can be due to TTS not supported.
System.ArgumentException

This exception can be due to improper value provided while setting the value.
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Stop()

Stops playing the utterance and clears the queue.

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public void Stop()
Exceptions
Type Condition
System.InvalidOperationException

This exception can be due to the following reasons:

  1. Invalid Stat
  2. Operation Failure
System.NotSupportedException

This exception can be due to TTS not supported.
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Unprepare()

Disconnects from the STT service.

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public void Unprepare()
Exceptions
Type Condition
System.InvalidOperationException

This exception can be due to an invalid state.
System.NotSupportedException

This exception can be due to TTS not supported.

Events

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DefaultVoiceChanged

Event to be invoked when an error occurs.

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public event EventHandler<DefaultVoiceChangedEventArgs> DefaultVoiceChanged
Event Type
Type Description
System.EventHandler<TEventArgs><DefaultVoiceChangedEventArgs>
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EngineChanged

Event to be invoked to detect engine change.

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public event EventHandler<EngineChangedEventArgs> EngineChanged
Event Type
Type Description
System.EventHandler<TEventArgs><EngineChangedEventArgs>
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ErrorOccurred

Event to be invoked when an error occurs.

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public event EventHandler<ErrorOccurredEventArgs> ErrorOccurred
Event Type
Type Description
System.EventHandler<TEventArgs><ErrorOccurredEventArgs>
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StateChanged

Event to be invoked when TTS state changes.

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public event EventHandler<StateChangedEventArgs> StateChanged
Event Type
Type Description
System.EventHandler<TEventArgs><StateChangedEventArgs>
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UtteranceCompleted

Event to be invoked when the utterance completes.

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public event EventHandler<UtteranceEventArgs> UtteranceCompleted
Event Type
Type Description
System.EventHandler<TEventArgs><UtteranceEventArgs>
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UtteranceStarted

Event to be invoked when the utterance starts.

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public event EventHandler<UtteranceEventArgs> UtteranceStarted
Event Type
Type Description
System.EventHandler<TEventArgs><UtteranceEventArgs>

Implements

System.IDisposable