Module tts 

Text-to-speech API.

Synthesizer

The entry point for speech synthesis is the synthesizer. This module provides two variants of synthesizers:

• SyncSynthesizer will block the current thread until the speech synthesis is finished, or until the given timeout.
• EventfulSynthesizer will return immediately and call the supplied event handler when the speech is finished.

For asynchronous synthesis, see the tokio module.

All synthesizers share the methods defined in the Synthesizer struct.

Voice

The user can install a variety of voices on their machine. The installed_voices function allows iterating through all the installed voices, filtered by the provided criteria.

Structs

EventfulSynthesizer

A speech synthesizer that calls the supplied event handler every time it finishes rendering speech.

Pitch

Voice pitch, represented as a value in the interval [-10, 10], with 0 being normal pitch.

Rate

Speech rate, represented as a value in the interval [-10, 10], with 0 being normal speed.

SpeechBuilder

Helper type that can construct a Speech from a sequence of rendering instructions.

SyncSynthesizer

A speech synthesizer that blocks the current thread while rendering speech.

Synthesizer

Provides the common speech synthesis API shared across different kinds of synthesizers.

Voice

A voice installed on the system.

VoiceSelector

Encapsulates the criteria for selecting a voice.

Volume

Voice volume, represented as a value in the interval [0, 100], with 100 being full volume.

Enums

SayAs

Provides a hint about how to pronounce the associated content.

Speech

A speech to be rendered by a synthesizer.

SpeechOutput

Specifies where the output of speech synthesis should go.

VoiceAge

Specifies the age of a voice.

VoiceGender

Specifies the gender of a voice.

Traits

EventHandler

The handler EventfulSynthesizer will call.

Functions

installed_voices

If successful, returns an iterator enumerating all the installed voices that satisfy the given criteria.