Package edu.tufts.hrilab.tts

Interface SynthesisBackend

All Known Implementing Classes:

CartesiaSynthesisBackend, KokoroSynthesisBackend

public interface SynthesisBackend

Unified interface for streaming TTS synthesis backends.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static enum	SynthesisBackend.Engine	Available engines.
static interface	SynthesisBackend.Session	One utterance's worth of synthesis.
static interface	SynthesisBackend.Sink	Where synthesized PCM goes.

Method Summary

Modifier and Type	Method	Description
int	getSampleRate()	Output PCM rate (s16le mono), fixed for the backend's lifetime.
void	init()	Load credentials and prewarm the transport.
boolean	isReady()	False if the backend cannot synthesize at all (e.g.
SynthesisBackend.Session	openSession(SynthesisBackend.Sink sink)	Begin one utterance's synthesis.
void	shutdown()	Release transport resources.

Method Details

init

void init()

Load credentials and prewarm the transport. Called once from component init.

isReady

boolean isReady()

False if the backend cannot synthesize at all (e.g. missing credentials).

getSampleRate

int getSampleRate()

Output PCM rate (s16le mono), fixed for the backend's lifetime. Valid after init.

openSession

SynthesisBackend.Session openSession(SynthesisBackend.Sink sink)

Begin one utterance's synthesis. Never returns null when isReady.

shutdown

void shutdown()

Release transport resources. Called from shutdownComponent.