Module fallback 

STT/TTS fallback chains: local-first with cloud fallback.

SttFallbackChain tries local STT first, falling back to a cloud provider when the local result has low confidence or errors. TtsFallbackChain tries local TTS first, falling back on error.

Structs

LocalSttResult

Result from a local STT transcription.

SttFallbackChain

Fallback chain for STT: local -> cloud on failure or low confidence.

SttFallbackResult

Combined result from the STT fallback chain.

TtsFallbackChain

Fallback chain for TTS: local -> cloud on error.

TtsFallbackResult

Combined result from the TTS fallback chain.

Enums

SttSource

Source of an STT transcription result.

TtsSource

Source of a TTS synthesis result.

Traits

LocalSttEngine

Trait for the local STT engine (e.g., sherpa-rs based).

LocalTtsEngine

Trait for the local TTS engine (e.g., sherpa-rs piper).