Crate piper_plus_g2p 

piper-plus-g2p

Multilingual G2P (Grapheme-to-Phoneme) for TTS — eSpeak-ng free, MIT licensed.

IPA-first design

Phonemizer::phonemize_with_prosody() returns clean IPA token lists without BOS/EOS markers or PUA encoding. The encoding step (PUA mapping, phoneme_id_map, BOS/EOS/padding insertion) is handled separately by encode.

Supported languages

Language	Code	Feature flag
Japanese	ja	japanese
English	en	english (default)
Chinese	zh	chinese (default)
Korean	ko	korean (default)
Spanish	es	spanish (default)
French	fr	french (default)
Portuguese	pt	portuguese (default)
Swedish	sv	swedish

Quick start

use piper_plus_g2p::{Phonemizer, PhonemizerRegistry};
use piper_plus_g2p::english::EnglishPhonemizer;

// Create a registry and register language phonemizers
let mut registry = PhonemizerRegistry::new();
let en = EnglishPhonemizer::new().unwrap();
registry.register("en", Box::new(en));

// Look up a phonemizer by language code
let phonemizer = registry.get("en").unwrap();

// Phonemize text to IPA tokens with prosody info
let (tokens, prosody) = phonemizer
    .phonemize_with_prosody("Hello, world!")
    .unwrap();

// Encode tokens to phoneme IDs using a model's phoneme_id_map
// let ids = piper_plus_g2p::encode::tokens_to_ids(&tokens, &phoneme_id_map)?;

Re-exports

pub use encode::PiperEncoder;

pub use encode::UnknownTokenMode;

pub use error::G2pError;

pub use phonemizer::PhonemeIdMap;

pub use phonemizer::Phonemizer;

pub use phonemizer::PhonemizerRegistry;

pub use phonemizer::ProsodyFeature;

pub use phonemizer::ProsodyInfo;

Modules

chinese

Chinese (Mandarin) phonemizer for Piper TTS.

custom_dict

カスタム辞書モジュール

encode

Phoneme token-to-ID conversion.

english

English phonemizer using CMU dictionary + ARPAbet-to-IPA conversion.

error

G2P-specific error types.

french

Rule-based French grapheme-to-phoneme conversion for Piper TTS.

korean

Korean phonemizer – Hangul decomposition + IPA mapping.

multilingual

Multilingual phonemizer for code-switching text across N languages.

phonemizer

Core Phonemizer trait, PhonemizerRegistry, and shared types (ProsodyInfo, ProsodyFeature, PhonemeIdMap).

portuguese

Rule-based Brazilian Portuguese phonemizer for Piper TTS.

spanish

Rule-based Spanish G2P (grapheme-to-phoneme) phonemizer.

swedish

Rule-based Swedish G2P (grapheme-to-phoneme) phonemizer.

token_map

PUA (Private Use Area) マッピング.