colibrio-reader-framework/com.colibrio.readingsystem.base/ColibrioTtsSynthesizer

ColibrioTtsSynthesizer

class ColibrioTtsSynthesizer(textToSpeech: TextToSpeech) : UtteranceProgressListener, TtsSynthesizer, CoroutineScope

A TtsSynthesizer implementation based on the Android Text to speech API android.speech.tts.TextToSpeech.

To customize the language and voice used, please use setColibrioTtsSynthesizerConfigurationListener. See ColibrioTtsSynthesizerConfigurationListener for further details.

Constructors

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constructor(textToSpeech: TextToSpeech)

Properties

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open override val coroutineContext: CoroutineContext

Functions

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open override fun addUtterance(speechData: TtsUtteranceData)

Add the utterance to the queue of utterances to speak.

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open override fun clearAndPause()

The implementation must stop any current playing utterance and set itself in paused state. It should then clear the queue of utterances to speak.

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open override fun destroy()

Destroys this instance. The synthesizer will clear the utterance queue and set itself in paused state. The reference to any callbacks passed with init() is released.

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open override fun init(callbacks: TtsSynthesizerCallbacks)

Called before any other method to register a callbacks instance used for reporting progress, etc.

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open fun onAudioAvailable(p0: String, p1: ByteArray)
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open fun onBeginSynthesis(p0: String, p1: Int, p2: Int, p3: Int)
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open override fun onDone(utteranceId: String?)
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open override fun onError(utteranceId: String?)
open override fun onError(utteranceId: String?, errorCode: Int)
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open override fun onRangeStart(utteranceId: String?, start: Int, end: Int, frame: Int)
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open override fun onStart(utteranceId: String?)
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open override fun onStop(utteranceId: String?, interrupted: Boolean)
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open override fun pause()

Will be called by the SyncMediaPlayer when it should pause playback.

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open override fun play()

Resume the playback of the current active utterance if any exists, otherwise the next utterance from the utterance queue. The implementation must use callbacks.onUtteranceEnd() when each utterance has finished speaking.

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open override fun setMuted(muted: Boolean)

Sets if playback should be muted. When called with false, the synthesizer should unmute and use the playback volume last set by setVolume.

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open override fun setPlaybackRate(playbackRate: Double)

Will be called by the SyncMediaPlayer when its playbackRate has been changed.

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open override fun setVolume(volume: Double)

Will be called by the SyncMediaPlayer when its volume has been changed.