Crate libdengjen 

Modules

error_codes

synth_event

synth_mode

Structs

AudioInfo

DengjenFFIError

DengjenVoice

PiperSynthConfig

SynthesisEvent

SynthesisParams

Parameters for libdengjenSpeak and libdengjenSpeakToFile.

Constants

DENGJEN_ABI_VERSION

Bumped on any incompatible change to the exported functions or structs.

PIPER_SYNTH_CONFIG_NO_SPEAKER

Functions

_internal_libdengjenFreePiperSynthConfig^⚠

Safety

_internal_libdengjenFreeString^⚠

Public destructor for strings managed by the other side of the FFI.

_internal_libdengjenUnloadDengjenVoice^⚠

Safety

libdengjenAbiVersion

The ABI version this library was built with; bindings compare it with the one they were generated against before making any other call.

libdengjenCancel^⚠

Safety

libdengjenFreePiperSynthConfig^⚠

Safety

libdengjenFreeString^⚠

Safety

libdengjenFreeSynthesisEvent^⚠

Safety

libdengjenGetAudioInfo^⚠

Safety

libdengjenGetPiperDefaultSynthConfig^⚠

Safety

libdengjenGetSynthesisParameter^⚠

Reads a single named entry from the voice’s generic synthesis parameters map — the read-side counterpart to libdengjenSetSynthesisParameter. Returns true and writes *out_value_ptr if key is present in the voice’s current generic parameters map; returns false (not an error) if key is absent, or if the loaded backend has no synthesis config at all (e.g. Kokoro).

libdengjenLoadVoiceFromConfigPath

libdengjenSetPiperSynthConfig^⚠

Safety

libdengjenSetSynthesisParameter^⚠

Sets a single named entry in the voice’s generic synthesis parameters map. This is an additive escape hatch alongside the named-field setters (e.g. libdengjenSetPiperSynthConfig): key may be any string, but whether it has any effect depends on the loaded backend — a backend that doesn’t recognize key silently ignores it. Piper only recognizes length_scale, noise_scale, and noise_w; Kokoro ignores all three (it has no tunable synthesis parameters).

libdengjenSpeak^⚠

Safety

libdengjenSpeakToFile^⚠

Safety

libdengjenUnloadDengjenVoice^⚠

Cancels any running synthesis, waits for nonblocking workers to stop, then frees the voice. No callback fires after this returns, so user_data may be released immediately afterwards. The exception is a call from inside a callback of the same voice: it frees the voice without waiting, and that worker still delivers a final FINISHED event, so keep user_data alive until it arrives.

Type Aliases

DengjenFFIResult

SpeechSynthesisCallback